Copiapoa - Living on the Edge
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The genus Copiapoa

by Derek Butcher

In Calandrinia II (1982)

Copiapoa A - Z

C. serenana Voldan (KUAS 1976)

Named from a seedling raised from seed of a dead plant found in a clump of C. coquimbana, originating from Knize's nursery.

C. serpentisulcata Ritt. (Cactus 1960) Plant no.25, map 4. KK 613.

Body-grey green often tinted reddish to 15 cm across, forming clumps to 60 cm high, 1 m across. 20-38 ribs almost divided into tubercles. Crown yellowish-brown; Areoles--brownish; Spines--variable, yellow-brown to black. 6-10 radials to 2 cm long, 1-4 centrals, ca. stronger, to 3 cm long; Flower ­to 3 cm long, pale yellow, scented. Tube has brown or red scales; Habitat ­Chaņaral.

Note: Apparently the areoles may be white when this species is in cultivation.

C. serpentisulcata v. castanea Ritt. (Kakt. Sudamer. 1980)
 

C. solaris (Ritt.) Ritt. Plant no.7, map 3.

syn. Pilocopiapoa solaris. KK 75, KK 1300, KK 599.

Body-grey-green, globular later elongated, to 1 m high, 8-12 cm across forming clumps. Very hard with flat woolly crown; Areoles--nearly round, 10-17 mm across, yellowish-brown, thick long felt becoming grey, to 5 mm apart; Spines--light yellowish-brown, when new tips only a little darker, be­coming grey. Stout to very stout, rigid, straight or curved, .sometimes claw like. Surface ca. fibrous, often flaking off. 7-10 radials, pointing sideways or erect, 15-50 mm long. 2-5 centrals irregularly positioned, 2-6 cm long; Flower ­2.5 to 3 cm long, carmine pink to pink-yellow to light yellow, outer petals redder. Anthers cream. Style only 10-13 mm long, stigma with 4-8 light yellow to orange lobes. Tube and ovary greenish-white or pink with long areole wool. Ovary wall twice as thick as in Copiapoa, flower scented; Fruit ­green to red, 15 mm long, 15 mm thick, lid-like at the top. Seed 2 mm long x 1.33 mm x 0.67 mm, black, smooth; Habitat-El Cobre, east of mist zone.

Note: Lembcke in 1966 considered this species to be synonymous with C. conglomerata. Backeberg believed it to be allied to C. bridgesii. because of the hairy tube. However, the hair of flower tubes may not be that important, if we consider them in the light of Matucana and Submatucana or Rebutia and Aylostera.

Knize recognises a variety luteispina KK 1239.

Ritter (Kakt. Sudamer. 1980) now treats this species as a Copiapoa and reduces C. ferox and C. conglomerata to synonymy.

C. streptocaulon Sensu Ritter. Plant no.6, map 3. KK 72.

Reduced to synonymy with C. marginata by Britton and Rose,

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