Original Description: The Cactaceae 2
p.154 - Britton & Rose (1920)Pendent and prostrate on limestone rocks, 2 to 3 meters long, dark green, the old stems nearly or quite terete, 4 to 6 cm in diameter and smooth, the younger branches 2 to 3 cm in diameter, 5 to 7- angled, with spine-bearing areoles 2 to 4 cm apart; spines gray, acicular, 5 to 8 at each areole, the longer 4 to 5 cm long, ascending; flowers about 2 dm long, the slender greenish tube about as long as the limb; ovary about 1 cm in diameter, tubercled, bearing short subulate leaves, the areoles with short, white hairs; perianth-tube bearing distant, linear, acuminate scales 1 to 3 cm long, the areoles with white hairs 1 to 1.5 cm long; outer perianth-segments linear, greenish, acuminate, the inner somewhat broader, white, acute or acuminate; fruit yellow, depressed-globose, tubercled when young, nearly smooth when old, 6 to 7 cm in diameter. |
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