Acianthus amplexicaulis

Description

Acianthella (elf orchids) is a small genus of tropical ground orchids previously included in Acianthus but is now distinguished "by tiny green flowers on long thin ovaries, sepals of similar shape and size, lacking apical clubs, narrow petals and no basal glands on the labellum." There are about 7 species altogether, two endemic to Australia, and 5 to New Caledonia. Both the Australian species are self-pollinating and very difficult to grow. It was described by David LLoyd Jones and Mark Alwin Clements in 2004. The type-species is Acianthella amplexicaulis.