This paper embraces a taxonomic revision of the genera Bracisepalum (2 species), Chelonistele (11 species, 4 varieties), Entomophobia (1 species), Geesinkorchis (2 species) and Nabaluia (3 species). Synonymy, descriptions, distribution, habitat notes, and colour descriptions are given; each species is illustrated by a figure. Keys are given to the species.