Bulbophyllum Thou.
Rhizome: retrose or transverse or creeping or ascending
Pseudobulb: with internode
Leaf: characteristics: 1, 2, sessile or subsessile, petiolate
Floral bract: small
Scape: arising laterally on pseudobulb or base of short stem or nodes of rhizome
Sepal: lateral sepals adnate to column foot or labellum forming a mentum
Petal: shorter or smaller than sepals
Labellum: adnate to column
Column: with wing or triangular-falcate or arm-shaped or subulate appendages, with column foot
Anther: 2-loculed
Pollinia: number: 4
Pollinia: other characteristics: without appendage