Disperis Sw.,
Kong. Vetensk. Acad. Nya Handl., ser 2, 21 (1800) 218
Small terrestrial plants with subterranean tubers. Stem one- or two-leaved. Leaves not sheathing at the base, almost opposite, glabrous, persistent, convolute, herbaceous. Inflorescence terminal, a few-flowered raceme or carrying a single flower. Flowers small, resupinate. Sepals free, the lateral sepals spurred. Petals free, quite different from the sepals. Lip without spur, the basal part adnate to the column. Column-foot absent. Pollinia 2, sectile, caudicles present, stipe absent, viscidium present.
Distribution
Tropical and Southern Africa, Madagascar, Mascarenes, Sri Lanka, tropical continental Asia, Indonesia, the Philippines, Papua New Guinea, Carolines; about 75 species.
Distribution in the Philippines
Luzon (Pampanga, Batangas, Sorsogon); 1 species.
Habitat
Terrestrial in montane forest.
Notes
A highly characteristic genus of very delicate terrestrial plants, unique because of the spurred lateral sepals and the highly complex structure formed by the lip and the column. It is predominantly African and is very scarce in cultivation.