Glomera Blume, Bijdr. (1825) 372
- Genus Giulianettia Rolfe, Hooker's Icon. Pl. (1899) t. 2616
- Genus Glossorhyncha Ridl., J. Linn. Soc.
- Genus Ischnocentrum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 318
- Genus Sepalosiphon Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 317
- Genus Thylacoglossum (Schltr.) Brieger in Schltr., Orchideen
Sympodial epiphytic or terrestrial plants. Stem elongated, often branching. Leaves many, sheathing at the base, sheath hairy or not, often more or less warty, margins often fimbriate-laciniate, blade glabrous, dorso-ventrally flattened, sometimes almost terete, articulate, duplicate, stiffly thin-textured to carnose. Inflorescence terminal, a raceme or carrying a single flower, subtended by one or more membranous sheaths (spathes). Flowers small to rather large, resupinate or not, variously coloured but predominantly white, the lip often with a conspicuous blackish, red, green or yellow spot near the apex. Lateral sepals, and sometimes also the dorsal sepal connate at the base. Petals free, often fairly similar to the dorsal sepal, but sometimes distinctly broader, rarely narrower. Lip adnate to the column, spurred, not mobile. Column relatively short and thick, with deeply concave clinandrium and cup-like stigma; column-foot present or absent. Pollinia 4, solid-waxy, caudicles present, stipe absent, viscidium present or absent.