Ridleyella Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 948
Sympodial epiphytic plants, rhizome very short. Pseudobulbs consisting of one internode. Leaves 2, without sheathing base, glabrous, dorso-ventrally flattened, articulate, duplicate, rather thin-textured. Inflorescence lateral from the base of the shoot, a panicle. Flowers small, not resupinate, dull violet. Sepals free. Petals free, intermediate in size and shape between the dorsal sepal and the lateral sepals. Lip without spur, not mobile. Column-foot present. Pollinia 8, solid-waxy, caudicles present, stipe absent, viscidium present.
Species present in New Guinea: