Ktymology: ventriculus = belly, in reference to the 
inflated, belly-shaped spur of the lip. 
Sepala petalaque similia, ringentia, nisi petala minora. 
Labellum sessile, basi columnae adnatum, non articula- 
tum, 3-lobum, saccatum; lobis lateralibus erectis, lobo 
intermedio porrecto; incurvo, sacco ecalloso, intus juxta 
orificium utrinque piloso. Columna humilis, cylindrica, 
apoda, antice excavata. Stigma minutum sub rostello. 
Rostellum alte carinatum, antice bidentatum. Pollinia 
2, ovoidea, unumquidque valde inaequaliter fissa, stipiti 
late triangulari-spathulati affixa; glandula minuta. 
Herbae epiphyticae; caulibus elongatis, laxe foliosis; 
foliis linearibus; inflorescentiis axillaribus, fasciculatis, 
unifloris, succedanelis. 
Vegetatively the plants of this genus are very similar 
to those of T'richoglottis, but florally they are very dis- 
tinct; the characteristic ligula at the base of the lip is ab- 
sent. In the elevated, carinate rostellum it is reminiscent 
of Sarcoglyphis Garay, but the shape of the stigma and 
the structure and number of pollinia are very dissimilar. 
Ventricularia tenuicaulis (Hook.f.) Garay, comb. nov. 
Basionym: Saccolabium tenuicaule Hook.f., Fl. Brit. Ind. 6: 64, 
1890. 
Uncifera tenuicaulis (Hook.f.) Holttum in Gard. Bull. 
11: 292, 1947. 
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