Pristiglottis Cretz. & J.J.Sm., Acta Fauna Fl. Universali, ser. 2, Bot., 1, 14 (1934) 4
- Genus Cystopus Blume, Coll. Orchid. (1858) 82
Small sympodial terrestrial plants. Stem elongated, slightly succulent, basal part creeping, forming a rhizome, apical part erect, few-leaved. Leaves distributed along the erect part of the stem or crowded at the stem-apex, spirally arranged, sheathing at the base, glabrous, persistent, convolute, often with wavy margins, usually dark green, sometimes with a whitish mid-vein, herbaceous. Inflorescence a few- to several-flowered terminal raceme. Flowers small (but relatively large for the plant) to medium-sized, resupinate, white, green, or bluish. Sepals connate or not. Petals free, about as long as the dorsal sepal but narrower, more or less falcate. Lip with or usually without spur, not mobile, at the concave base with two warts, with a long tubular median part, which often has toothed or fringed margins; spur, if present, bilobed. Column-foot absent. Pollinia 2, sectile, caudicles present, stipe absent, viscidium present. Stigma without clearly separated lobes.
Species present in New Guinea: