The part of the stamen containing the pollen, in orchids often cap-like and usually consisting of two thecae.
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Coelogyne rhabdobulbon Schltr.
Bulbophyllum nephropetalum Schltr.
Habenaria lobbii Rchb.f.
Anthers; after Bauer & Lindley
Column of Paphiopedilum, after Engler & Prantl