Agrostophyllum Blume, Bijdr. (1825) 368
- Genus Appendiculopsis (Schltr.) Szlach., Fragm. Flor. Geobot. Supp. 3 (1995) 119
- Genus Chitonochilus, Schltr. in K.Schum. & Lauterb. Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 134
- Genus Diploconchium Schauer, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19
Sympodial epiphytic or rarely terrestrial plants with very short to somewhat elongated rhizomes. Stems elongated, with few to many internodes, sometimes swollen into slender, flattened pseudobulbs. Leaves few to many, arranged in two rows, sheathing at the base, glabrous, deciduous, duplicate, thin-textured but rather stiff; leaf-sheaths usually with black or brown margins. Inflorescence terminal [at least seemingly so] or rarely lateral, very short, 1- or few-flowered, usually produced in head-like clusters. Flowers small, resupinate or not, white or yellowish, sometimes with purple or yellow markings on the lip. Ovary usually with a few scattered scale-hairs. Sepals free. Petals free, about as long as but much narrower than the dorsal sepal. Lip without spur, but sometimes sac-shaped at the base, not mobile, usually clearly divided into a cup-shaped basal part and a flat apical part. Column-foot indistinct or absent. Pollinia 8, solid, caudicles absent, stipe absent, viscidium present.