Plocoglottis Blume, Bijdr. (1825) 380
Sympodial terrestrial plants with short to very short rhizomes. Pseudobulbs present or not, consisting of one to several internodes, 1- or few-leaved, when absent stem elongated, few- to many-leaved. Leaves at the base sheathing or not, glabrous, plicate, deciduous or not, convolute, green, sometimes purple, or with silvery green longitudinal bands, or with pale yellow spots, thin-textured. Inflorescence lateral from the base of the plant, a many-flowered raceme, with the flowers opening in succession. Flowers medium-sized, resupinate. Sepals free. Petals free, about as long as the sepals, but usually somewhat narrower. Lip without spur, elastically hinged to the column, sensitive (see notes below). Column-foot very short or absent. Pollinia 4, solid, caudicles present, stipe absent, viscidium present.
Genus Plocoglottis in New Guinea contains 19 species: