"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
a shared terrestrial habitsectile (capable of being severed) or granular polliniaerect anthers.The Orchidoideae contain two subclades with the following tribes :
tribes Orchideae and Diseaetribes Cranichideae, Chloraeeae and DiurideaeThe former subfamily Spiranthoideae is now embedded as tribe Cranichideae in the clade of the Orchidoideae. It is sister to the tribe Diurideae." - (en.wikipedia.org 19.09.2020)
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