Orchidoideae

The Orchidoideae, or the orchidoid orchids, are a subfamily of the orchid family (Orchidaceae).
They typically contain the orchids with a single (monandrous), fertile anther which is erect and basitonic.
The subfamily Orchidoideae and the previously recognized subfamily Spiranthoideae are considered the closest allies in the natural group of the monandrous orchids because of 
The Orchidoideae contain two subclades with the following tribes : 
The former subfamily Spiranthoideae is now embedded as tribe Cranichideae in the clade of the Orchidoideae. It is sister to the tribe Diurideae.
The tribe Orchideae comprises the following subtribes:
The tribe Diseae comprises the following subtribes:
The tribe Chloraeeae comprises the following subtribes:
The monophyletic tribe Cranichideae comprises the following monophyletic subtribes :
The tribe Diurideae comprises the following subtribes : 