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Fig. 1. Floral features of Trigonidium obtusum Lindl. A, Flower in lateral view. B, Longitudinal section through flower showing the column and lip at the bottom of the flower. C, Column in lateral view with lip hinged at its base. D, Column in frontal view. E and F, Dorsal (E) and lateral (F) views of a pollinarium. G and H, Ventral (G) and lateral (H) views of an anther cap. stg, Stigmatic surface.
