Weberocereus biolleyi (Weber) Br & R. Syn. Cereus biolleyii Weber

An epiphytic trailing or climbing species. It has cylindrical or irregularly angled stemps up to 2 ft-7in long, rarely exceeding 1/5-inch thick. amd pften branching. The aeroles are small and far apart, with rarely one to three very fine spines. Flowers, noctournal in summer, are 1-2in long and in diameter, and have fleshy. dark pink outer petals and longer, pale-pink inner segments. Needs a semi-shaded position, which is essential, plus humidity; a porous acid compost; minimum temperatue 59 degrees F. Costa Rica. (The Illustrated Encyclopedia of Cacti, Clive Innes & Charles Glass, 1991)