1	"Column with a distinct foot"	Dendrochilum
1	"Column without a foot"	2
2	"Labellum pouched at base; flowers many in dense racemes, each subtended by a large papery bract"	Pholidota
2	"Labellum not pouched at base; flowers few or, if many, then not in dense racemes, not subtended by a large papery bract"	3
3	"Leaves thin and early deciduous; labellum entire or obscurely 3-lobed"	Pleione
3	"Leaves leathery and persistent; labellum prominently 3-lobed"	Coelogyne