W. Mark Whitten University of Florida Florida Museum of Natural History P.O. Box 117800 Gainesville Florida 32611-7800 USA
Flower of Trigonidium egertonianum, an orchid in the subtribe Maxillariinae.
Flowers of Trigonidium are pollinated by pseudocopulation by meliponine
bees attracted to the bluish petal apices; the bees attempt to copulate with the
flowers and become trapped in the funnel-shaped flowers. On the basis of molecular
data, Trigonidium was found to be embedded in the large polyphyletic
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