Dendrobium Sw.
Pseudobulbs elongate, jointed (Fig. 44). Labellum 3-lobed Dendrobium
Leaves not terete thin to leathery, conduplicate, Stems swollen for at least part of their length. Flowers usually resupinate ie labellum lower most in flower
Stems swollen, not branched. Leaves clustered
Stems not swollen, usually branched. Leaves not clustered