Growth form Epiphyte. Rhizome not seen. Roots filiform, long, flexible, glabrous. Stem elongated, cylindrical, compressed, completely covered by leaf sheaths, internodes 1-3.5 cm long. Leaf linear-lanceolate, coriaceous, glabrous; apex unequally 2-lobed, both lobes obtuse; base narrowed, slightly twisted; lamina 9-11 cm long, 0.9-1 cm wide; sheath tubular, transversely warty, many-ribbed; apex without tooth, with glabrous margin. Inflorescences terminal, multi-flowered, capitate, when young enveloped by a spathe. Spathe not seen; floral bracts not seen. Flowers upright, glabrous. Median sepal not seen. Lateral sepals falcate, oblong, 5-nerved, apex acute, apiculate. Petal oblong, widened towards apex, apex obtuse. Lip adnate to the base of the column, quadrangular; epichile obtuse; hypochile spurred; spur oblong, apex obtuse. Column thick, dilated above; clinandrium not seen; stelidia not seen. Anther broadly cucullate, with obtuse projection, 4-locule; rostellum not seen; stigma not seen; pollinia 8, ovate, compressed; viscidium not seen. Ovary cylindrical, 3-ribbed, 0.76 cm long. Capsule not seen.
Distribution – West Java, Indonesia.
Habitat and Ecology - Epiphyte in montane forest of West Java. Altitude not known. Flowering in December and January in the wild.
Notes - 1. Flowers red.
2. The epithet erythrosma refers to the red flesh-colored flowers of the species (erythro means red and soma means body or flesh in Latin).
3. Specimen observed: Blume s.n. & PW. Kornthals s.n