Order of orchids
Orchidales is an order of flowering plants. In taxonomical systems, this is a relatively recent name as early systems used descriptive botanical names for the order containing the orchids. The Bentham &amp; Hooker and the Engler systems had the orchids in order "Microspermae" while the Wettstein system treats them as order "Gynandrae". Circumscription of the order will vary with the taxonomic system being used. Although mostly the order will consist of the orchids only (usually in one family only, but sometimes divided into more families, as in the Dahlgren system, see below), sometimes other families are added:
Circumscription in the Takhtajan system.
Takhtajan system:
Circumscription in the Cronquist system.
Cronquist system (1981):
Circumscription in the Dahlgren system.
Dahlgren system:
Circumscription in the Thorne system.
Thorne system (1992):
APG system.
The order is not recognized in the APG II system, which assigns the orchids to order "Asparagales".
References.
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