Copiapoa - Living on the Edge
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The Chileans Volume 12, # 42:125

A visit to Chile by Roger M Ferryman

During the latter part of 1982, I had the opportunity to visit Chile and see for myself the cacti growing in their natural environment, those same plants that I had grown and studied for many years. Having declared an intention to go, the next problem was, where? Geographically Chile is unique, very narrow but over 4200 km long. The cacti occur over about half this length, from south of Santiago to the northern border with Peru. Many of the plants are coastal or follow the numerous valleys that run from the Andes down to the sea. Despite the narrow band of country that these plants grow in, it would not be possible to tackle more than a small area within my time scale.

Of the options open to me I decided to join Fred Katterman an a trip to the Tarapaca region. Fred had been to Chile five times previously but never before further north than Antofagasta. Neither of us knew too much of the region as it is only met within the cactus literature very occasionally. There appeared to be around a dozen species there according to Ritter and most of these he considered rare. The terrain we knew would be harsh; we could expect few places where we could replenish food, water, or petrol. We would therefore have to carry plenty of reserves; this, we decided, meant taking two vehicles, a decision which was later to be our salvation.

I left England with as light a pack as I could, bearing in mind I would be in the field same eight weeks. Travelling light has problems; my camping equipment weighed 10 kilos, camera equipment 5 kilos and that left very little for clothing! Clothes were a problem; they had to be suitable for the extremes we were to encounter in temperature and be strong enough to withstand the rigours of this type of travelling without requiring too much attention like washing!

I arrived a week ahead of the Kattermans in an attempt to become accustomed to the climate and people of Chile. I also hoped to do some field work close to Santiago. The flight had been long but comfortable; the highlight coming as we crossed the magnificent Andes still capped in snow. I was soon to learn that it had been a particularly wet winter in this region, one of the wettest on record. That evening, I had dinner with Adriana Hoffman, a botanist who was now involved in producing a field guide of the Chilean Flora. The task in hand was to produce a field guide on Chilean Cactaceae and with this in mind she had decided to join us an our trip north. She had arranged a couple of field trips for me and got under way the required permits to enable me to collect and export certain specimens. During both the early and latter part of my stay in Chile much of my time was taken up in pursuing this very essential documentation and carrying out our import requirements, sanitary inspection, etc.

My first field trip was to an area around Valparaiso. Adriana had arranged to meet some friends and we would journey to Quintay on the coast, studying the Flora en route. As we left Santiago the cacti were soon evident; the low hills were covered with Trichocereus chilensis - they had even re-introduced themselves amongst the fruit trees on the fertile plateau. Having met up with Adriana‘s friends we left the main Pan American Highway along a narrow dirt road leading to Quintay. The early vegetation consisted of introduced pines, occasionally giving way to the true nature of the area by the appearance of Puya chilensis amongst the pines. After several stops to photograph the numerous wild flowers, more evident than usual because of the high winter rainfall, we stopped at a sight known to Otto Zolner as the habitat of a rare orchid species. Otto, like Adriana, had an interest in all forms of plant life which made for a particularly refreshing trip. The other member of our small party was Mario Pino, an entomologist who seemed happy anywhere as long as there was something he could bash with his stick and collect the falling insects in his enormous net! Mario had a good knowledge of cacti as he had spent same time in the field with Lembcke.

The area we were in reminded me of England, very green, rolling hills with cattle grazing against a backdrop of the pine forest. Imagine my surprise, therefore, when, whilst searching for the elusive orchid I came across Pyrrhocactus horridus (RMF 1) - a small colony of about six plants growing an a slightly raised area amongst various shrubs and the invariable Puya chilensis. The population was too sparse to stand collecting, but I did find a couple of small seedlings that had become dislodged due to sail erosion.

From there we made our way towards Quintay but we were brought to an abrupt halt a few kilometres from the coast. The now very narrow road had been made impassable as a result of the winter rains washing great channels in it. The walk to the sea would not be far and it took us over almost typical English moors, fairly fiat with occasional shrubs. As we descended from the cliff tops, Neoporteria subgibbosa (RMF 2) came into view. lt never grew over the cliff line but was abundant an the slopes and the craggy rocks that rose out of the sandy beach. Most examples were in flower to the delight of a visiting hummingbird which never stayed in one place long enough to be photographed. The vegetation of this area would seem to support hummingbirds but this was not always the case at other Neoporteria sites I visited later. From here we travelled further north along the coast where we found Trichocereus litoralis. The Neoporteria subgibbosa was again here among rocks and the brickwork of an old whaling station. Our return journey took us via Casablanca where we had hoped to find Pyrrhocactus on the surrounding hills. Once more the area was untypically lush and our searches were in vain.

During the next few days I made visits to the hills and mountains around Santiago, spending a fair amount of time along the Rio Mapocho valley and the Rio Colorado valley. I collected plants in the Mapocho valley (RMF 3) that I believed to be the original Echinocactus curvispinus Bertero. There remains same doubt, however, as others believe this plant to be Ritter‘s Pyrrhocactus andicolus. I found this plant throughout both valleys up to 1,800 meters and later near the end of my stay I also found it at El Volcan (RMF 80) at an altitude of 1,800 meters. At this last site I also found Erdisia spiniflora (RMF 81) growing some 200 m higher on the summit of a hill. The vegetation between the last Pyrrhocactus and the Erdisia consisted of low shrubs and fairly abundant bulbs like Phicella ignea (Amaryllidaceae) but no further cactus. Upon reaching the flat crown of the mountain I found the Erdisia growing under low shrubs. lt was only visible by the new reddish growth but it was not until I was an top of it that it gave itself away. Much of the old growth had been frost damaged and a quick scan round showed that this area must receive snow during the winter. The terrain throughout this area and that of the Colorado valley appeared much drier than the Mapocho valley where I experienced mist that not only restricted ones view but was dense enough to soak me to the skin. The very abundant Trichocereus chilensis had water dripping from its spines. Trichocereus chilensis is common throughout both valleys where it is often covered by Phrygilanthus aphyllus, a quite attractive parasite.

The time had now approached for the main trip to commence; Adriana had had the Land Rover serviced, new tyres fitted and a trailer purchased to enable us to carry more supplies. We made our way to Valparaiso where we were to meet Fred Katterman, passing yet more Trichocereus chilensis en route. Unfortunately Chilean servicing appears to be little better than ours and we started to experience fuel problems on our way. A day‘s delay resulted whilst the Land Rover received a further check up. We spent a day visiting the collection of a Mr. Soni who had, besides a marvelous cactus collection, outdoor gardens representing many parts of the world including a huge patch of English roses. The following day we left Valparaiso for the north, stopping en route to visit Rudolp Wagenknecht at his home in La Serena. His collecting days are long over and his cactus collection has gone but he still retains his great knowledge and many photographs. We made camp that night a few kilometres north of La Serena among the clumps of Copiapoa coquimbana. I was soon to learn of the frailty of tent pegs supplied with lightweight camping equipment.

As dawn broke I made my way into the hills where the night before Adriana had found Neoporteria wagenknechtii. I found several small specimens (RMF 6) on a hill facing north in sight of the ocean, the altitude being no more than 100 m. We made a further stop same 20 km onward at the Cuesta Buenos Aires and here I found Pyrrhacactus chorosensis (RMF 7). lts very large tap root made it difficult to extract the plants from the crevices they were growing in without causing the head to break from the narrow neck. I settled in fact for removing two plants intact and simply removing the heads from another couple. This improvisation was necessary an account of the very close attention that a swarm of hover flies were paying me! The heads I removed should root down without much problem; it is standard practice to do this, and hopefully there will be sufficient neck left an the remaining roots to offset. We were soon to come across Austrocylindropuntia miquelii and Eulychnia breviflora both in flower, so too was Cumulopuntia berteri at El Dolpha and Copiapoa coquimbana at Los Choros. However, the area was becoming much drier with the barren red hills the dominant feature of the landscape. Little else grew between here and Copiapó apart from the cactus. I collected Copiapoa coquimbana (RMF 8) fourteen km south of Vallenar and also photographed Austrocylindropuntia miquelii in flower.

Upon passing Copiapó the road once more headed towards the coast; we had last seen the Pacific Ocean same 300 km back at La Serena. After a slight delay at the efficient S.A.G. Control at Caldera we made our way up the coast to look bar a campsite. From the road we spotted a large area of Copiapoas and despite the lateness of the afternoon, we decided to stop and take a look. Copiapoa calderana (RMF 9) was the dominant species here along with examples of Copiapoa marginata (RMF 10). Almost the entire population of both species had been badly damaged, particularly the older clumps. The cause of this damage was not obvious, there was no sign of rock falls as most of the plants were an the flat coastal belt and a fair way from the cliffs, and no sign that the damage was inflicted by animals. Before our eyes lay hundreds of mutilated plants many of which were well over a hundred years old, all with stems broken off. Further along the road, no more than a few hundred metres, is a fast developing holiday centre - could this be the cause, directly or indirectly? lt is certainly my belief that the damage was willful and destructive.

As the night drew in we made camp at Pta. Flamenco; I pitched my tent alongside Eulychnia Saint-pieana which in habitat is not the white woolly plant we grow in our greenhouses. lt is in fact very similar to E. breviflora and I suspect similar also to E. barquitensis; I say “suspect“ because the plants I found at Barquito did not appear to be any different to all the other Eulychnias which I had previously seen. In the now fast fading light, preliminary searches were made for Thelocephala malleolata v. solitaria which Ritter reports from this site. lt was difficult to imagine that something as delicate as T. malleolata could be found amongst the large gravel in what is obviously an extremely arid area, yet grow it does and I was lucky enough to find same specimens. Collecting however, would have to wait until morning when we would have more time to ascertain the strength and variation of the population.

On the following morning photography proved as difficult as the night before; the sky was extremely dull and overcast. Mist had rolled in from the ocean at a height well above us but it was dense enough to cause light problems far the camera. The plants where we were, at sea level, did not seem to derive any benefit from this fog, possibly accounting for the very poor condition of the plants at sea level here. The two globular cacti of this area both have very distinctive tap roots and were always found level with the soil. A number of Thelocephala malleolate were found, both singular and clustering and for this reason I find the varietal name of solitaria unacceptable; furthermore I could see no difference between these plants and the type specimens. The other globular plant here was much scarcer, Copiapoa longispina, and very few live specimens were found. The plants have an extremely narrow neck joining the head to the tap root and it proved impossible to keep the complete plant intact throughout our journey.

The journey from here to our overnight stop of Calama took us through same of the driest areas of Chile. The landscape became quite monotonous, dull brown hills and plains with no sign of life whatsoever, punctuated by only the few remarkable oasis that exist wherever the rivers have sufficient water that can be used to irrigate the otherwise barren land. There are not too many rivers that manage to carry water from the high Andes to their coastal destination but where they do, little villages appear in the valleys and decorate the landscape with narrow bands of greenery. Calama is quite a large town but owes its very existence to the river Loa that runs along its outskirts. The river here is quite vigorous and, in keeping with the increased altitude, very cold. As we made camp that night we were reminded that the nights in the higher altitudes bring with them a particularly fresh cold.

The following morning we set off to perhaps the most remarkable of all the oases in this part of the world, San Pedro de Atacama. The terrain between Calama and San Pedro is practically lifeless with some very strange lunar-like scenery. Near to San Pedro we saw Cumulopuntia tortispina for the first time. lt has however a wide distribution at altitudes of between 2850 m and around 4000 m and forms quite sizeable mounds as Ritter‘s new generic name suggests. Several examples were in flower and quite a few still had fruits enmeshed in the very tight spination. Generally it grew with little other vegetation except the coarse tuft grasses.

The sight of the green San Pedro de Atacama as one approaches from the dry desert is truly quite remarkable. Introduced trees and palms give quite a false impression of its surroundings. The village itself has a first class museum which, together with its church, brings what few visitors the area sees. Our attraction however was to see Trichocereus atacamensis which grows to the north of the village along the Quebrada del Diablo. Having done the tourist bit in San Pedro, including identifying the various cacti that the museum had collected locally, we set off for the Quebrada. Trichocereus atacamensis (RMF 95) grew an the steep sides of the numerous valleys at around 3400 m along with Oreocereus leucotrichus and a couple of species of Cumulopuntia, tortispina and (?)hystrix. The Oreocereus were generally in very poor condition and gave the impression that the climate was becoming too dry for their survival. Moreover it had to contend, along with the Trichocereus, with the ravaging of its fruits by larvae, which results in very few seeds reaching maturity. The lava egg is laid within the fleshy fruit whilst it is still developing and the grub which hatches out eats the entire contents of the fruit. Although I found several fruit in this area very few contained viable seeds; in fact the only seed I did collect was from the Trichocereus and that was after removing the grub! An interesting Tephrocactus was found high on the flat ground near to the road at 3250 m. The species is unknown to me, although I suspect that it could be Maihueniopsis conoidea (RMF 13). lt has very little growth above ground, small cylindrical heads of ca. 2 cm in length, but has an enormous tuber underground. Very few specimens were found.

I had not seen my colleagues for quite some time and returned to the Land Rover to make contact. Whilst awaiting their return or arrival I noticed the trailer we had been towing was leaning heavily to one side. Upon inspection I realised that the suspension had gone and the offside tyre had worn itself bald and damaged the trailer body to such an extent that I had no alternative but to dump the complete trailer. Having completed the transfer of the equipment from the trailer to the Land Rover, I decided to backtrack in the Land Rover to look for the absent friends. They were found some 5 km back, as a result of the camper breaking down. The coil had gone and fortunately we had a replacement, but already we had cause to verify the wisdom of travelling with two vehicles. We camped that night on the Quebrada del Diablo at 4200 m amongst the Cumulopuntias. Next morning we set off for the Geiser del Tatio and it took practically all day to complete the seventy km. The going was tough an both vehicles and fuel starvation became a real problem; the Land Rover with its four wheel drive fared betted than the camper and was often needed to push the camper back into life as it strived to climb the increasing heights. Not one single hill proved a problem - it was more a case of the gradual but regular climb. We reached El Tatio that night and were allowed to camp in the now disused mining quarters. The next morning, we were to be up around five o‘clock in order to see the Geysers at their best. That night, however, was to prove the worst of the trip. All four of us had headaches as a result of the rarified air at this altitude (4400 m); the evening meal we prepared was very Iight but even so I was extremely sick. Throughout the night I endured a splitting headache and heart pounding. lt was not therefore a question of waking up the next morning since I never slept, but I must admit that I needed a gentle push to start me on my way to the highest geyser field in the world. I had seen these geysers an the T.V. film “The flight of the Condor“ and the events of the previous night were very much the same as outlined in the book on the film series by Michael Andrews. Pillars of steam rose from the ground and on the edge of the resulting water pools heat resistant algae formed in marvelous colour. On the edge of this basin grew Cumulopuntia and at this time of the morning they had a covering of ice.

The return journey to Calama was downhill and therefore would not be such a strain an our vehicles. Nevertheless both had developed faults which needed attention and our petrol situation was near desperate. This meant that we could not make too many stops on the return journey for fear of reaching Calama too late in the day. We did stop east of Caspana where Fred noticed a group of “different cactus“. They were infact Soehrensia uebelmannianus; I regret that I never saw them, perhaps because my attentions had turned to the numerous Alpacas and Llamas that feed on the high puna. I was also fortunate enough to see Darwin‘s rhea, a single bird who did not hang about long enough to be photographed. I stopped further along the road nearer to Caspana and collected seed from Oreocereus leucotrichus (RMF 96). Here the population was much healthier and there were a number of seedlings evident. Trichocereus atacamensis was again evident but I regret that we were unable to find further populations of the Soehrensia. We made Calama virtually on fumes and made arrangements to have the repairs carried out to the vehicles. The fuel pump had gone on the Land Rover and although we could not obtain a replacement we were able to find an alternative electric pump that the garage could use. Here in Chile life is a little different to England; it is up to the customer to obtain the parts he wants fitted, the garage merely fits them!

After a further two nights at Calama, we made our way north to Pisagua. The road from the main Pan American Highway towards Pisagua was typically Chilean. The numerous potholes dotted about the road made driving very difficult the more so as this particular road had a habit of disappearing. This was still the dry, lifeless Atacama Desert where nothing grew; it is a long flat plain devoid of anything. The ocean came within sight and Pisagua lay down below us, a small caleta which typified many of the tiny villages along the coast. Before making our descent we decided to take a couple of exploratory walks to see if we could spot the Eulychnias that typified the area. We met with no success; all we could see was barren cliffs. Upon reaching the village we made enquiries about the location of cacti in the area. Despite showing several of the villagers Ritter‘s illustration and our own plants that we had collected elsewhere, nobody knew of a single cactus. We had to register with the police here and again we asked the same question. This time the reply was more emphatic, in the seven years this policeman had been stationed here he had never seen a cactus, not even as he travelled up and down the coast line by boat. How then could we get to other possible locations along the coast? This we were told was no longer possible as the only road out of Pisagua was the one we had used in getting here. There was once a narrow road that travelled south for about twenty km but this was no longer open. I was particularly anxious to search this area as Lau reportedly found Neochilenia iquiquensis (L804) here. We made several attempts to travel south via the desert but each time we reached the coast we were greeted by the same barren cliffs that existed back at Pisagua. But it was on one of these sorties that we spotted through our field glasses what we thought might be Eulychnia. At first they looked like a few upright poles but as we travelled further it became evident that they were indeed Eulychnia.

Returning to the Land Rover we headed in their direction across the vast sandy plains weaving our way round, up and down the many ravines that crossed this area. We could not get any closer to the coast than about two km but here we left the Land Rover to make our way an foot. Fred and Adriana went in one direction and I made a separate journey in a more southerly direction. Upon reaching the coast I found nothing; I scanned the horizon in both directions for signs of Eulychnia, but again nothing. I had seen far away to the south a high bank of cloud hovering over the cliffs and decided to aim for what appeared to be a small caleta. Distance is deceptive in these parts and I walked for several hours before I could be sure that there were plants there. They were still a long way off but I decided having come so bar that I would continue my walk. The problem here was that I had to walk three km to get one km nearer, for the ravines were deep and winding. The last few km were travelled at a record pace as I realised that the hitherto dots were indeed Eulychnia. They were actually within the mist limit on very steep cliff slopes and my descent had to be slow and cautious in order to retain a footing an the lose rocks. Furthermore the slope was so shear that it was almost straight.

The Eulychnias here were not like the earlier plants I had seen at La Serena; here they were taller and much stronger in the trunk. They were also, bar the best part, dead! Very few of the specimens I saw were alive and those that were, were holding on by a narrow line. All the plants had a type of moss or algae clinging to the stems which at times completely enveloped the whole plant. This competition for the extremely scarce water supply was obviously one reason for the Eulychnias lack of health. Despite very lengthy searching I was unable to find any sign of globular cacti throughout this area. As I made my way laboriously back to the cliff tops my clumsy efforts came to the attention of two condors who not only came closer for a look but presumably did not rate highly my chances of survival. The walk back to base seemed eternal as it often does when you return empty handed. The others had been back for same time and had started to become concerned about my welfare, concerned enough to sink a bottle of wine over discussions of what to do! They had found the Eulychnia stand we had spotted earlier but all the plants were dead. Fred had found a Tephrocactus and a single Neochilenia iquiquensis but despite a lot of searching he could not add to that tally. We returned to Pisagua tired and defeated.

A further search was made at Caleta Junin but produced nothing. The area itself was extremely strange. lt was the site where mining had been carried out and the remains of much of the equipment laid strewn over a small area. The vicinity of the cliff top there had been planted out with several species of shrub and palm but all were now dead. When we arrived, the fag was extremely dense, hanging from the remnants like huge spiders‘ webs. Having decided that we had spent enough time in searching for our elusive N. iquiquensis it was now time to make for Arica where we would reprovision for the trip east to Putre. We had also hoped to receive permission to visit Cabo Lobos to search for Neochilenia aricensis but despite concerted efforts only Adriana was allowed to make the trip. The whole area is now a strong military base and they do not take kindly to foreigners trouping round their closely guarded quarters. Adriana was allowed to visit on the basis of being a Chilean native, she was however escorted throughout by two military personnel. She succeeded only in finding several small specimens of Eulychnia aricensis. Having failed to convince the Army to let us loose around the cliff tops, Adriana then set about the Navy! They kindly agreed to take us by boat from Arica to just south of Cabo Lobos if we came back on Sunday! We arrived at the Arica docks early Sunday morning to be met by the Captain and his two crew members who were to take us out for the day. The boat turned out to be a military gun boat complete with guns that were unwrapped and loaded as we left the quay. Never before have I been so well behaved. The journey was extremely interesting and we spotted several small stands of Eulychnia high up at the top of the cliffs. These were clearly not accessible from the beach anymore than the area where we disembarked at Caleta Vitor. There was nothing else for it but to sunbathe under the watchful eye of the military. Clearly then if Neochilenia aricensis still exists it has developed a unique conservation tactic, the Chilean military!

Monday morning we left Arica for the east having enjoyed three nights in the comfort of a local hotel; it was good to sleep well and be able to bath twice a day. Following the valley basin along which the Rio Lluta runs we made for Poconchile to search for lslaya krainziana. The hills on both sides of the valley were completely bare of vegetation and consisted of very fine sand making climbing exceedingly difficult. We knew that somewhere here I. krainziana existed for Ritter‘s description and photographs indicated just such a terrain even though we found it difficult to believe that any plant could exist in such a harsh environment. After several fruitless sorties, I found the plant growing, or perhaps merely existing, in two very localised patches tucked neatly into spots where whatever mist that managed to make its way along the valley would be sure to reach. The condition of the plants indicated that such incidents were very infrequent but each plant was uniquely adapted to take advantage of whatever moisture there was available. All the plants grew facing towards the crown of the hills and were almost prostrated, thus maximising the area on which the dew could settle. The roots were long but very shallow, the sand in which they grew was so loose that by merely grasping the head and gently pulling, it was possible to remove them complete with roots. The memory of sitting amongst these plants and scanning the barren hills set against the green sward of the valley floor will long remain in my memory. I now fully understand the notes I received from Karel Knize when I imported some of these plants - “No Wasser“ for clearly these plants come from the driest of all cacti habitats; to me their mere survival was among the most incredible sights I witnessed on this trip.

Having washed the sand from ourselves and bathed in the cool Rio Lluta we headed for Cuesta Cameros where we made camp for the night. As the road climbed to around 2250 m we saw for the first time the only cactus known to most of the locals, Browningia candelaris (RMF 17). The terrain was now very rocky but with little vegetation other than the cactus. The distribution range of Browningia appears to lie between 2000 - 2800 m, always in very barren areas. Our guide informed us that this area never receives rain; the rain bearing clouds carry the moisture over until it reaches the border where rainfall can be quite severe. The name candelaris typifies the mode of growth of these plants; the characteristic candelabras are held above a single stem which appears to become almost spineless on the top growth prior to offsetting. Similarly the offsets/branches are very often almost spineless; a single stem could quite easily be mistaken for a cylindrical Opuntia. Solitary non-branching specimens were observed but very few small young plants were encountered. I did find several dead Haageocereus which once again indicated that the area was becoming much drier.

Climbing the Cuesta still further we came across a superb Tephrocactus (RMF 18) at 2900 m. A single specimen, which I could not identify, grew on a hill with no other vegetation in sight. Despite extensive searching, I could not locate a second specimen, yet clearly there should have been as this plant had set seed. lt was a mound forming plant, probably Cumulopuntia, with fierce long red spines some 12 cm long. Each pad was about 5 cm in diameter and this particular clump was about 80 cm across. Continuing on, we came across the first Corryocactus brevistylus, which was later to typify much of this region. Whilst I found both fruit and flowers, I confess that I never saw a “good“ specimen of Corryocactus throughout the trip, hence I took very few slides of this particular plant. lts altitude range appears to be from about 2500 m to 3500 m. Oreocereus leucotrichus was now becoming quite significant in terms of vegetation; several forms were observed throughout this region but only really differed in regard to strength and colour of spination and by the density of the wool. One such variant was observed near Tignamar and had the strongest yellow spination I have ever seen. Unlike other habitats where the various forms grow together, this particular area had only the one form. In appearance it was much like the Oreocereus which I first encountered further south around San Pedro, although the spination was much stronger, probably on account of the terrain. A good number of the Oreocereus were in flower and fruit and their general condition was much better than their more southern relations. The range of this species was from 3300 m to 3800 m but very widely distributed.

Sharing much the same distribution zone as the two preceding species is Arequipa hempelina. Equally as common, it is always found in association with both Oreocereus and Corryocactus in fairly open areas i.e. without the cover of other vegetation. Both single plants and sizeable clumps were encountered throughout its distribution, the largest clump I recall was about half a metre across, with the main head perhaps 250 mm long. I collected Arequipa at various localities - Parianacota, Putre, Zapahuira, Belen, Tignamar and finally from the very margin of its distribution 76 km from Arica in an area known only as The Atacama. Here it grew with a surprising mimicry with Haageocereus fascicularis (RMF 34). My visit coincided with the flowering season of Oreocereus but I never found any evidence of flowering amongst the Arequipa - no sing of buds, flower remains, or fruit - perhaps nature‘s way of ensuring that these two similar floral characteristics do not get a chance to cross or hybridise in the wild. You will note from the specific names I use for Oreocereus and Arequipa that I side with Ritter‘s conclusion in regards to Philippi‘s Echinocactus leucotrichus being an Oreocereus and not, as many have proposed, an Arequipa. The original Philippi description is very brief but there are certain points that seem to rule out the plant being an Arequipa. Nowhere did I find an Arequipa with wool some 50 cm long or covered in white wool, as Philippi describes. Furthermore he also described Cereus (Trichocereus) atacamensis from the same region and in my experience this plant only grew in association with Oreocereus and Tephrocactus. Had Philippi found the plant we call Arequipa then quite clearly he would also have found Oreocereus.

Neowerdermannia has a narrower distribution in this area and generally grows beneath other shrub-like vegetation. lt is however very frequent as far as the plant Karel Knize calls N. chilensis v. putrensis is concerned. This variety is justified as far as I am concerned for it differs substantially from the plant Backeberg described as Neowerdermannia chilensis. Taking the latter first, I found this plant only near Tignamar (RMF 13). lt is a small plant, no more than 6 cm in diameter, with an obvious tap root. Backeberg describes the flower as white, but at the time of my visit the plants had finished flowering and were in fruit. The other form, which I found at Putre, Zapahuira, Belen and to the north of Tignamar around 3300-3500 m was a much larger plant, up to 25 cm diameter without a tap root and with a clear yellow flower. The Neowerdermannias appear to be more particular in regard to habitat sites, most areas where I found them were fertile with a wealth of other vegetation. These sites obviously suited them well as nearly every specimen I observed was plump, fresh and in flower and/or fruit. They often occurred with Arequipa but this was generally at the end of their range of distribution and here the plants would be drawn deeper into the soil. Arequipa are less selective in their choice of sites, provided they were somewhat open. Rarely did I find them among the Neowerdermannia strongholds even though the distance would be no more than a couple of hundred metres between what was typical Arequipa growing areas and the typical Neowerdermannia habitat. lt was not uncommon to find Arequipa amongst strong limestone areas; the plants I collected north of Belen (RMF 27) came from a very marked limestone area. Neowerdermannia chilensis (RMF 31) grew in a very open terrain not far from the site of the strongly spined Oreocereus mentioned above. In this terrain there was precious little other vegetation to afford these plants the protection they seem to enjoy.

On most maps you will not find a road linking Belen with Tignamar but we were assured that the hitherto track was in good enough condition at this time of year to allow us to make such a journey. Needless to say the journey proved quite eventful. The road had not been constructed for vehicles and some of the climbs together with hairpin bends proved too much for the camper. Without four wheel drive I doubt if my Land Rover would have made it either. On a couple of occasions the Land Rover had to push the camper very slowly up the incline before it could one more use its own power. On one particular steep incline even this proved to be insufficient; furthermore there was no room to turn round and to descend backwards would be very dangerous. We had no choice therefore but to strip the camper of all its contents and remove the large gas cylinder attached to the underside in order to lighten it as much as possible. The spare wheel was fastened to the Land Rover front end to use as a buffer for pushing the camper uphill. Very slowly we gained momentum until the top was reached and the camper was once again under way on its own power. This was to prove our last reminder of just how essential two or more vehicles were in this region, for help does not exist close to hand. Villages are a good distance apart and natives are rarely encountered outside their villages. Supplies in these villages are very basic; we were unable to get bread or food of any description in the “towns“ of Belen and Tignamar.

Having resolved our problems we headed for Arica where we would spend a further couple of days in the luxury of a hotel and replenish our depleted stores to enable us to make the return journey to Santiago. The road, as it twisted through the Quebrada Camina, Quebrada Tignamar, and Quebrada da Vizcacha, gave us our last sight of the magnificent Oreocereus. The hills facing north were particularly densely populated to the extent that one could truthfully say that they were clothed in Oreocereus. Arequipa were also presented here, as was Corryocactus, but no Neowerdermannia were found. lt was along the Quebrada da Vizcacha that we made our last stops as we searched for good specimens of Haageocereus and to discover how far west the Arequipas reached. Both plants were collected by me some 76 km from Arica, that is 55 km to the Pan American Highway. Cacti continued in the form of Browningia for a further 15 km (altitude 3500 m) before the sterile Atacama desert took hold, making the last part of the journey both monotonous and boring.

We left Arica and headed for lquique where we spent another fruitless day searching for the elusive northern Pyrrhocactus. This time however we were granted military approval to search along the coast line; Eulychnias were found but nothing else. Again we learnt of the continuing drought that affects this area. A heavy rainfall forty years ago had caused extensive flood damage as the rain rolled down the hills and cliffs that stand behind the town of lquique. Fears that this could happen again were voiced several times but little had been done to protect the town; little appears to be possible indeed as the ground which has not seen rain since that time has become almost like concrete.

Leaving Iquique by the coast road we made a few further searches for the elusive Pyrrhocactus without success. Wherever we found Eulychnia it seemed worth a look but these plants grow in terrain where a look can mean several hours of climbing. One such climb north of Pta. Lobos occupied an hour and a half to ascend a gradual incline of little more than three or four hundred metres. The descent was much quicker for I simply slid down. Eulychnias were for the best part growing in pure sand although they attained much firmer footings higher up the slope The terrain reminded me of the habitat of lslaya krainziana.

At Cta. Guanillos del Norte we came across Eulychnia after several hours of climbing and walking. Here for the first time were encountered signs of Pyrrhocactus but were unable to find any living specimens. It is the type locality for P. saxifraga and from what we saw it was fairly obvious that quite a large population had once inhabited the otherwise barren land; now all that appears to exist is the Eulychnia. Although not terribly vigorous the Eulychnia seem able to survive where the mist reaches; the slopes facing the coast are a particularly favourite location provided it is steep with little other vegetation, and so are the flat, narrow valleys behind the cliffs.

The most northem Pyrrhocactus that I encountered in good health was south of Tocopilla almost at sea level. The plants (RMF 36, 37) I identified as P. residuus and grew in clefts on the rocks facing the sea. Eulychnia also grew here in some abundance. The plants I collected came from a small inlet that formed a break in the cliffs and grew on both sides, benefitting from the moisture that the mist would deposit on the rocks. The next site we made for was Cerro Moreno and I confess that if I had not been told that plants grew there I would never have spent a moment searching. We had to cross miles of desert waste land as we made our way from the road towards the coast. Nowhere did this seem to be cactus country, no sign of the now familiar landmarks such as the steep coastal slopes. We were by now at sea level and the land between us and the sea was flat and lifeless. After several hours of driving across the wasteland we came to the coast but it was now time to make camp. The 'Cerro‘ lay before us and although of no significant height would be best tackled with a lull day in front of us. The following morning was extremely cold as the clouds completely hid the sun from us all day; even at midday I was surprised just how cold it could be without the benefit of the sun.

As we made our way up the gentle slopes, Copiapoa boliviana became extremely common, large multi-headed clumps with tuberous roots. Few were in flower but the Eulychnia had several fat healthy buds apparently only a few days oft flowering. The area was covered with various lichens illustrating that this was a particular damp locality. Damp, but rarely wet, as the moisture here does not appear to extend to supporting flora other than cacti. Apart from some dormant twig-like vegetation amongst the cacti, all the other vegetation was restricted to the few gulleys between the hills at the lowest altitude. In this area the goal was to find Ritter‘s Pyrrhocactus vexatus, described only recently in his Kakteen in Sudamerika Vol. 3 but cultivated since its discovery in 1960. It was to prove an extremely difficult plant to find, but find it we did on a few flat areas where there was a fair depth of soil. The plant grows flush with the ground, heads mostly solitary up to 2 cm in diameter, with a large tuberous root. Extraction was very difficult on account of the narrow neck and it was interesting to note that most specimens were in bud. This plant appears to be as much a Thelocephala as a Pyrrhocactus. It has all the characteristics of Thelocephala although I have yet to see flowers or fruit. Nevertheless it shows just how fine are the generic divisions of Ritter.

Our next stop was to be El Cobre, which like many other place names, exists only as a map reference, for there is no town or village. Despite the names we have been accustomed to reading in the cactus literature, our route Irom Antofagasta to Taltal via the coastal road only passed one very tiny settlement at Paposo; for instance Blanco Encalada is known to most cactophiles, as is El Cobre, but there is no settlement or road signs to advise the traveller where he is. We only realised we were approaching El Cobre when the large mounds visible high in the hill were recognised as Copiapoa solaris. As the road winds towards the coast, the hills either side must enjoy the benefits of the coastal mists as they roll inland through these gulleys. The Copiapoa, scarce at first, becoming more frequent nearer the sea, are the only vegetation to be seen. My first encounter was to be a sad one for the large clumps visible from the road in great numbers were all found to be dead upon close inspection. Still perfectly formed but apparently attacked by some virus, their decay would presumably have been a slow process. After making such a joumey to this spot, followed by a tiring climb, only to find each clump you booked at was dead, the hollow feeling one senses cannot really be put into words. Fortunately this was to be the only site we visited where the plants were like this; at all the other sites there were healthy populations of surprising size both in terms of quantity and of individual clump size. Clumps of one hundred heads were not uncommon, which is really quite remarkable considering the slow rate of growth of these plants. It was difficult to find single heads or small clumps but this was almost certainly due to collecting activity rather than a quirk of nature. It was to be the only area I visited where heavy collecting must have occurred; there were several indications that professional traders had been active here. The plant population will probably stand this as there are still many thousands of plants still left; however it is still a problem especially as flowering is rare even in habitat and hence rejuvenation is all that much slower.

Having made camp here that night we left the vehicles on the following morning to search for Pyrrhocactus glaucescens, as well as spending more time with the remarkable Copiapoa solaris. I was fortunate enough to find the Pyrrhocactus growing amongst rocks and on ledges on the side of one narrow valley - fortunate, since the other members did not find it despite extensive searching. I found several specimens, the largest of which was no more than 7 cm diameter; all were typically squat with the epidermis a strange muddy colour. Possibly on account of better localized growing conditions some were more greyish, yet still with the muddy brown tinge. I found no evidence of flower or fruit here. In addition to these two cacti and the odd Eulychnia there was no other vegetation in that area.

In order to continue down the coast we had first to drive inland along the road which brought us to the coast, in the hope of picking up the track that led to the map reference Blanco Encalada. As we left behind the last Copiapoas the land became truly barren and it was not until we had made a turn towards the coast and started to descend that we came across more stands of Pilocopiapoa. The altitude here, 600 m, was much the same as at El Cobre, but the plants displayed minor difference. Firstly the clumps were nowhere as big as those at El Cobre and many of them had longer, lighter spines, yet they were in fact the plants that Knize calls var. luteispina. There was also a large number of smaller plants and evidence of flowering. The condition of the plants throughout this area made it obvious that they were enjoying a damper environment. Some very beautiful Copiapoa boliviana (RMF 46) were also found growing side by side with the C. solaris. Their beauty owed much to the fact that they were in better condition than their counterparts from Antofagasta; in fact such was the difference that they could easily be mistaken for another species. It is also interesting to note that whilst they were fairly abundant here I never encountered a single specimen at El Cobre.

A few hundred metres along the road we came across the superb Pyrrhocactus floccosus growing amongst the rocks. Those we encountered first were not so floccose as I had been accustomed to with cultivated plants but later I was to find several plants with a dense covering of wool. Again all were in exceptional condition with several plants over 25 cm high. As we descended towards the coast there were a few dormant woody shrubs amongst the cacti and even the odd Bromeliad.

We reached the coast and turned south to follow the coastline back to Taltal. At first the terrain was completely barren but as we scanned the ground on either side of the road - a fairly easy task as travel over these roads is very slow - we noticed a very different Copiapoa (RMF 53). Individual heads were 2.5 to 5 cm diameter and formed clumps of up to 30 heads. Single plants were uncommon but I found several with no more than three heads. The body was typical Copiapoa grey with reddish-brown hair felt in the crown, spines reddish to black, root tuberous; most specimens were in flower. This particular plant grew up to a few metres from the edge of the sea and covered a fairly narrow bend on the flat coastal plain. Ritter describes Copiapoa variispina as coming from this area and I have provisionally called by plants by that name; however, I confess that I do not understand the term "variispina“ in relation to this species as it was probably the most consistent form that I found throughout the region.

As we made our way along the coast, further larger Copiapoa became increasingly common, growing mostly at the base of the rocks, in the sand. Same 60 km north of Paposo we encountered the first of the Pyrrhocactus from this region. Ritter suggests that P. paucicostata is the most northerly of the group that includes P. paucicostata and its variety viridis, P. neohankeanus and its var. densispinus, var. elongatus, and var. flaviflorus and finally P. taltalensis. Of all these names I could find only two distinct forms, firstly P. paucicostata which included individual plants that were more densely spined, more elongated, etc., etc., but no populations of dominant forms and all forms appeared to have interbred with each other, and secondly P. taltalensis which I found somewhat later.

Much has already been written about the Copiapoas of this region and there is very little that I can add except to assure you of the remarkable sight one is greeted with. lsolated specimens in the north give way to larger clumps as one heads south; the size and quantity of these clumps around Paposo has to be seen to be believed. Again several names have been attached to various forms and there is certainly a huge variety of form; C. haseltoniana and C. gigantea are quite distinct as forms but what of the plants in between? Taxonomy had to take a back seat as I marveled at the amazing quantity of plants growing from the shore-line up the hills. The Copiapoa appeared to grow everywhere, whilst Pyrrhocactus were more demanding in their requirements. Eulychnia, Trichocereus and Euphorbia Iactilflua were all dominant in various areas. My search for Copiapoa humilis was in vain, caused as much by diversion of interest as by the scarcity of the plant.

The coastal mists were once again very evident during our stay here, clearing around 11:00 a.m. but once again even at this time of day there was rarely any moisture on the plants and certainly not enough to penetrate the soil. Yet clearly the plants do derive considerable benefit from these fogs as many of the Copiapoas, Pyrrhocactus, Tnchocereus fulvilantatus, Eulychnia breviflora and Euphorbia lactiflua were in flower as were the Bromeliads, a daisy-like plant, as well as newly germinated herb-like plants.

Having lunched at Taltal we moved a couple of miles inland via the "Quebrade La Cachina“, to a range of hills that run inland from Taltal towards the interior. Along the Quebrada was the area known as Breas where Soehrens claimed there grew the plant which Philippi described as Echinocactus occultus. (Note Philippi says that the plant grows from Copiapó to El Cobre along with the sea shore, a point that has often been refuted since the original description in 1860.) We made our way to where we thought Breas lay, according to our map reference but later found out that Breas lay a further 10 km to the east. We were given this information and also our exact location by the local land owner, who told us about an American botanist who had visited this site on several occasions some 20 years or so before; we speculated that this was probably Paul Hutchinson. The first plants we came across were Copiapoa cinerea, seemingly thousands of them in all shapes and sizes. A number of small plants were observed as well as sizeable clumps almost a meter across; many were in flower and some had set fruit. I did manage to collect some seed but it was an awkward plight to beat the ants to it! The Copiapoa throughout the region appear to stagger their flowering times and thus it was not uncommon to find buds, flowers, fruit and seeds all within a limited population. Again the Copiapoa did not seem to be too selective in its habitat for it grew both on the flat plain and on the gentle slopes of the hills. On the other hand the Eulychnia preferred the gentle slopes as did the not quite so common Trichocereus fulvilanatus. Also on the slopes were numerous Puya and Bromeliads whilst the very rare Pyrrhocactus taltalensis grew only at the base of large rocks.

The soil here was a sandy loam covered with a layer of walnut sized granite-like stones. On the fIat plains we did lind Pyrrhocactus occultus, but only after extensive searching. The name truly epitomises this plant for it really is hidden, not just concealed as are many of the Thelocephala that I found, but genuinely growing completely below the surface, To find it we were forced to drop on to all fours and gently rub away the surface stone and soil before finding the plant; I lost count of the number of times that this operation was carried out without success. Perhaps it can best be summed up by recounting one of the trip‘s many teasers; I was stood on a spot and told that the plant was within a meter of me - it still took a slightly over ten minutes to find it! From our searches it would appear that this plant is very rare, at least in this location and can only really be detected when in flower or fruit.

We left this area and made camp on the beach at Barquito. The following morning we climbed the steep coastal cliffs, passing the odd Copiapoa growing amongst the massive lumps of rock. On the way up I found Eriosyce megacarpa (RMF 66) in full flower and collected a couple of specimens that would otherwise be destroyed by the extending construction work here. On the very top of the 300 m high cliffs we found Eriosyce atacamensis and Copiapoa humilis var. barquitensis, but there was no sign of the Pyrrhocactus that we had hoped to find here.

We left this area, travelling south to Copiapó, a town nowhere near as attractive as the cacti named after it! Some 30 km south of Copiapó we stopped to photograph one of Chile‘s tourist attractions a (quote) one thousand year old Eulychnia. Whether the plant is really that old is pure speculation but it really is a monster of a plant some six meters high with well over a hundred branches. In the rocky terrain behind that plant I searched for, and found, a few scruffy plants of the species which Ritter calls Pyrrhocactus kunzei (RMF 68). Ritter has argued for some time now that the plant most of us know in cultivation as P. kunzei is in fact his P. eriosyzoides - which explains why the two are so similar - and that the kunzei described by Forster in Forster and Rumpler, Handbook Cacti. 293:1886 represent a totally different plant. Certainly the plants I found are very distinct from the golden spined species we cultivate as kunzei/eriosyzoides, but whether Ritter is correct in his belief is in my opinion very debatable. In keeping with many descriptions of that era, the Forster description is not very clear, however there are one or two points that would seem to refute Ritter‘s claim, notably that the habitat of the plant is "Chile, off the extreme mountain range, occasionally under a light snow covering.“ This area we were in now is never likely to see snow as the altitude is only 650 m and can hardly be considered as a mountain range. The habitat of Ritter‘s eriosyzoides on the other hand fits the habitat description perfectly.

Making our way towards Vallenar we stopped to collect Pyrrhocactus atroviridis (RMF 69). Despite being so numerous, the damage caused by insects burrowing within these plants made it impossible to collect undamaged specimens. The plants appear to be tolerant of very severe damage in same cases, as most plants were in flower or fruit. Eulychnia breviflora and Austrocylindropuntia miquelii were both very common here; nearly all the Eulychnias were either in flower or about to flower whilst the size of the Opuntia put the glasshouse efforts of most of us Europeans to shame! Further on we came to an unusually level area and pulled off the road; the view south was uninterrupted for probably 10 km. There were numerous tyre tracks around; whether it was a stopping off place from the monotonous road or whether numerous plant hunters had been here prior to ourselves. I do not know, but we hoped to find an unusual plant somewhere in this area. Find it we did, at first very scarce but later becoming easier to spot although really there were not too many specimens around. It is the habitat of Thelocephala duripulpa (RMF 73). A large number of the plants which we found had offsetted and whilst it was not possible to determine whether this was a result of damage to the main head, I did find a couple of plants with offsets but without any sign of damage to the main head. The soil was very similar to that in which we had found P. occultus growing and significantly both plants had large tubers. A four headed plant of about 7 cm overall breadth had a root of more than 20 cm in length. Unlike P. occultus but like many other of the Thelocephala, I found that these plants had the typical narrow neck about 6 mm in diameter and often with a surprising length of up to 7 cm. South of Vallenar, Copiapoa vallenarensis became increasingly common, the green body forms were now replacing the grey bodied plants.

It was late afternoon as we passed the Cuesta de Pajonales but for some unknown reason I decided to stop and take a look into the hills by the side of the road. Such was my excitement at what I saw that I clean forgot to warn the other vehicle of my intentions. The result was that not only did they pass me but returned more than an hour later, certain that I had met with some kind of accident. The temperature of the other driver - Fred Katterman, cooled distinctly as I offered my apologies and a peace offering of one of the most impressive Eriosyce species that we have seen to date. We decided to camp here for the night and make a further study of the area on the following morning, for not only were there Eriosyce to see (RMF 70) but also Pyrrhocactus eriosyzoides var. domeskeyoensis (RMF 72). The following morning the Eriosyce positively glowed in the sun, their reddish brown spination making them extremely attractive. Nearly all the plants I found had fruit on them, complete rings of fruit - I counted as many as 55 fruit on one plant; considering that each fruit usually contained about 200 seeds they would have been expected to have been more plentiful than I saw. Just what species this plant is, I am not certain; Ritter records Eriosyce algarrobensis as coming from near this locality but that particular species is unknown to me, other than the description and illustration in Ritter‘s s book. Of a surprising likeness was the Pyrrhocactus, the body perhaps a little more open but the same bronze colour. However, the fruit is distinct enough to identify itself as a Pyrrhocactus as it had the typical elongated berry of the Neoporterianae and not the woolly globular fruit of Eriosyce. I also found a single specimen of another Eriosyce with a green body and black spines, E. ceratistes or E. sandillon as Ritter calls it now.

Our last stop was now in sight, Trapiche. Here we were to look for a Thelocephala newly described by Ritter - T. fankhauseri. It was found after extensive searching and was visible only by the fruit projecting above the surface of the ground. One of the smaller species, most specimens were no more than 2 cm in diameter. It had the characteristic tap root. Very abundant in the same locality was another tap rooted plant, Pyrrhocactus deherdtianus (= trapichensis Ritter). A number of forms were found along with several flower colour variations. It was quite a fitting climax to the trip to find so many plants in flower within such a small compass. They seemed to have adapted well to this environment, growing both in the shade at the base of the numerous Eulychnia and in the open without any plant cover. In addition to the dominant Eulychnia, there were also numerous Copiapoa pseudocoquimbana in full flower. More difficult to detect was Pyrrhocactus simulans (RMF 76) which has evolved a striking similarity to the Copiapoa. It is an art of detection to separate the two and more than once I stood pondering which was which. Obviously flowers set them apart but I was too early for the Pyrrhocactus flowers but alter careful scrutiny I was able to collect two specimens - I think! As we left the area we were able to see the lifeline of many of these plants making its way through the hills around the district called El Tofo; the coastal mist had started to roll inland.

As we made our way south from Coquimbo, we stopped for a quick bite to eat. Not wanting to wait for sandwiches to be prepared, I hurried off to the nearest hill. Crossing the wire fences I came to a typical citrus grove but in amongst the trees I found the odd specimen of Eriosyce of considerable size, 15 cm, such is their tolerance of growing conditions.

Having returned to Santiago, it was now time to have the plants that I had collected inspected and the correct documentation raised to export the plants back to the U.K. In Latin America things like this cannot be hurried and it took the best part of four days before the plants were boxed and ready for despatch. I am quite certain however that without the help of Adriana it may have been nearer four weeks!

There was still time to make one or two more trips before returning home, so having been a possible burden to my hosts for long enough I slipped off and hired a rental car. The first few days I spent around the Santiago basin that I had been to earlier in my stay. My next aim was to visit Pichidangui which lay same 150 km north of Santiago. But first I visited an area of Montenegro, about 50 km north of Santiago. Here I found the familiar Pyrrhocactus of the region, P. curvispinus (or andicolus Ritt). It was a sheep grazing district with numerous forms of plant life trees dominated much of the south lacing slopes and the cacti were restricted to isolated north lacing areas. The exception to this is Trichocereus chilensis which, like its relatives in the Santiago basin, is quite happy competing with almost all other vegetation. Whilst most of my searches have proved fruitless despite the obvious presence of large stands of Trichocereus, I did find a broad mix of flora at one particular location. Here the rocks were a very unusual reddish colour and in amongst them I found Pyrrhocactus curvispinus (RMF 84), P. horridus (RMF 83) with deep red flowers, a further Pyrrhocactus of whose identity I am uncertain, and the plant which I had come here to find - Neoporteria coimasensis var. robustior (RMF 82). The latter were particularly fine plants with either black spines, or yellow spined, really robust and up to 50 cm high. Interestingly enough, despite growing within a hundred metres of the Pyrrhocactus, the two genera did not mix. The Neoporteria preferred the steep slopes or sheer rock faces whilst the Pyrrhocactus grew on more level ground often amongst the Puyas.

The Neoporteria had impressed me tremendously, so much that I decided to find the type species N. coimasensis. Ritter gives Las Coimas as the type locality but I could not find the place name on any of the large scale maps I had with me. I decided to take a chance and head for where I thought it should be! I was later to leam that I actually asked for directions from the very place that was once called Las Coimas. As the road wound its way beneath the hills I suggested cacti must exist there. Exist they did, in large numbers, including the Neoporteria I had come to search for. The problem was getting to them. Getting across the farmer‘s field complete with cows, that lay between the road and the hills was no problem to a lad from Suffolk, but how was I to cross the man-made dyk that had been cut into the hill? Although brim full of water, the width would not have put me off, but I could not see a suitable landing place on the other side where there was a thick growth of bramble and other plants. I travelled some 15 km with the same result - there plants no more than ten metres away but there was no way across. I traveled on towards Llay Llay and at last I found a clearing, but by now the plants were few and far between However, I managed to collect Neoporteria coimasensis (RMF 87) as well as the Pyrrhocactus of this area, P. aconcaguensis, but by now it was nearly 8 o‘clock in the evening and photography was not possible. I returned to the car and after a quick bevy of Chilean wine and a cuppa, decided to travel by night to Pichidangui. I arrived shortly before midnight, having avoided all but the worst of the potholes en route. The night was cool and I had intended to sleep under the stars on the patch of grass between the rough road and the sea, but after laying down my sleeping bag I decided against it - the place was full of cacti!

Early the following morning I surveyed the scene; Pyrrhocactus horridus (RMF 89) grew on almost every piece of flat ground, and where the rocks had formed low piles grew Pyrrhocactus chilensis. Most of the P. horridus were in flower and these were fairly consistent in colouration. Body morphology varied slightly, some green some brown, some offsetting but mostly single. As I wandered throughout this locality, I came across literally thousands of plants and I questioned how justified Ritter‘s varieties of P. horridus really are - var. minor, var. mutabilis, and P. odoriflorus. Of the many plants I found here and further north at Los Vilos, there were individuals that fell within the descriptions but I did not find consistent groups. Similarly with Pyrrhocactus chilensis, there is no geographical separation from the variety albidiflora and I found them in flower side by side. Pyrrhocactus chilensis bears an uncanny resemblance to Neoporteria subgibbosa both in terms of body morphology and mode of growth. Both plants grow at the base of extensive rocky escarpments, but both seem happiest wedged in crevices of the high cliffs. Pichidangui has quite a varied flora; in addition to the cacti mentioned above there are abundant Eulychnia castanea (in flower), Trichocereus, Puya, Nolana petiolata, Alstroemeria augustifolia and numerous other species that I could not identify.

From Los Molles I travelled to Illapel. My aim was to find Pyrrhocactus choapensis, which I did find amongst citrus trees at Choapa. It would seem that many plants have been removed since this type of farming commenced, but they still hang on, on the edge of such areas. The plants I collected came from just above the main orchard. Eulychnia grew on the other side of the valley but I could find no trace there of the Pyrrhocactus. At Pte. Confluencia (near Illapel) I was surprised to find a plant which I believe to be P. chilensis (RMF 93); its true identity will have to wait until it flowers for it grew in a most unlikely habitat for this species. There were, however, a large number of seedling plants in this area, which was once again dominated by Eulychnia.

This was the last opportunity I was to have of studying the plants on this trip as I had to make my way back to Santiago to spend my last night with Dieter Forstmann, to make provisional plans for my retum in 1983. Dieter has built up a fine collection of Chilean plants and we hope to make a trip together to Huasco, Elqui and onwards to Paposo around the end of the year.

Footnote: The plants I collected have by and large settled down well in our European climate and whilst it is still early days, it is interesting to note that several of those I collected in flower or fruit have already reverted to our seasons. October is early spring in Chile much the same as May (except warmer) but it is perhaps surprising that the plants did not need to condition themselves or in some cases even produce roots, before embarking on another flowering season. Alreadly P. deherdtiana, simulans, floccosus, horridus, paucicostata, and taltalensis have all flowered, whilst P. neohankeanus, kunzei, atroviridis, curvispinus, Copiapoa haseltoniana, cinerea, coquimbana, Thelocephala fankhauseri, Eriosyce megacarpa and RMF 70 are all in bud.

 from I. M. Johnston "Flora of Northern Chile“ 1929.

The coast of northem Chile, with the possible exception of that of northem Peru, is the driest in America. On this section of the coast are situated the principal nitrate ports - Antofagasta, Tocopilla and lquique. Viewed from the passing steamer the region consists of a wall of greyish-brown hill rising abruptly from the narrow coastal plain to about 1000, or here and there 1500m altitude, and extending in a line almost north and south. Only near Antofagasta is the regularity of the coastline broken by a prominent headland. Almost at the crest of the coastal hills begins the great desert tract or flat or rolling country that stretches eastwards for nearly 100 km. It is on this elevated, quite barren desert that the nitrates are obtained. The slopes of the hills facing the sea appear to be also quite barren of vegetation, an impression indeed which is not at once dispelled even when one lands and in port gazes at them from a much closer ranger. In ordinary years the slopes nearby are quite bare and utterly devoid even of lichens. The vegetation of the region is confined to certain higher slopes where the moisture from the fog-clouds, which frequently drift against them, is sufficient for the development of a meager flora in this otherwise completely desert region.

Drifting in from the ocean, particularly during the winter, these wet fog mantle certain slopes and by their condensation there as mists supplement the scanty rainfall sufficiently to develop a vegetation along most of the coast of Peru and northem Chile. Along the nitrate coast, however, the formation is not luxuriant, though it is of particular interest because of the simplicity of the factors permitting its development. The relation of fog to the presence of vegetation is here most obvious. In north Chile there is no continuous band of fertile slopes. These vary in size and in the moisture they receive and are scattered in occurrence. Only here and there along the coast are meteorological and topographical conditions right for the formation and banking of fog and so consequently for the development of some vegetation.

Because of the meagerness of the flora, its disrupted occurrence and the difficulties and danger (from lack of water) of travelling along the coast, no one has ever attempted to make a thorough and general collection or study the detailed distribution of the plants in the area. Consequently we know the flora only as it is represented on the slopes about the ports of Antofagasta, Cobija (now deserted), Tocopilla and lquique. Fortunately, however, there is a means of estimating the general extent and development of the vegetation along the coast. Growing on and confined to the fog-moistened slopes of the nitrate coast is the large columnar cactus, Cereus iquiquensis. This plant grows 2-3 m tall and is sometimes used as a source of fuel. lts size and economic importance to not permit it to be overlooked even in the dry months when the herbs, associated it in the more favourable seasons, are absent. It becomes evident, therefore, that this conspicuous cactus serves as a ready index to the extent and distribution of the fog-bathed fertile slopes. From the mention of the occurrence of the plant by travellers and from observations of it made with field-glasses from the steamer, one may say with fair confidence that the fertile areas are most abundant and best developed on the stretch of coast from the vicinity of Tocopilla south, near Antofagasta. 

from H. Middleditch

Maps of Chile which carry a number of the place names that are mentioned by Roger Ferryman will be found in Chileans No. 11, No. 37 and No. 40. There are sketches of tuberous rooted plants in No. 15 p. 54, an account by Karel Knize of a visit to Antofagasta in No. 16 p. 10, a description and illustration of C. ferox/solaris in No. 17 p. 64, an account by Buining of collecting in central Chile with Ritter in No. 18 p. 168; articles on C. cinerea in No. 33 p. 109, on Neowerdermannia in No. 37 p. 15, on Browningia in No. 39 p. 53, on Oreocereus leucotrichus in No. 38 p. 53 with the original description by Philippi and in No. 40 p. 30.

In regard to the statement by Philippi that Echinocactus occultus occurred from Copiapo to Paposo, it may be as well to recollect the state of the art at the time that comment was made. At that time there were known perhaps half a dozen species each of Gymnocalycium and of Notocactus, a similar number of Echinopsis and neoporterianae, a few Lobivia and Eriosyce, and a sprinkling of Copiapoa, no Parodia and no Rebutia. If we bear in mind that Philippi would find cacti buried in the ground almost up to the top of their spines between Copiapo and Paposo, then in the context of the day they would all be Echinocactus occultus. That we now divide them up into various Thelocephala etc., is simply a matter of progress; whether that progress is forwards or backwards can be debated.

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