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The polliniferous part of a stamen.

It must be borne in mind that instances can be found of teratological change of every organ in the plant—e.g. stamens transformed into carpels or into petals; anthers partly polliniferous and partly ovuliferous; ovules producing pollen in their interior, and so on, being simply a few startling examples of what may happen.

Similar section showing the effect of the pushing back of a2 by the bee, and the downward swinging of the polliniferous half-anther so as to dust the bee's back with pollen.

The change in the anther, above alluded to, must not be mistaken for that far more common one in which only a small portion of the anther becomes petaloid, forming a sort of lateral wing or appendage to the polliniferous portion, as happens normally in Pterandra, and is common in some double fuchsias.

Thus it was in a specimen of Odontoglossum Alexandræ examined by the writer, and in which, within a normally constructed perianth, there were six columns, all polliniferous, but arranged in so confused and complicated a manner that it was impossible to make out any definite relation in their position.