Intrafloral Pollen Differentiation in the New World Lecythidaceae, Subfamily Lecythidoideae

See allHide authors and affiliations

Science  18 Jul 1980:
Vol. 209, Issue 4454, pp. 400-403
DOI: 10.1126/science.209.4454.400


Floral biology, pollen germination, and scanning electron microscopy studies have indicated different types of pollen within the same flower in at least two species of New World Lecythidaceae, subfamily Lecythidoideae. Two types of pollen are produced in different parts of the androecium and serve different functions. One type attracts pollinators by providing a reward, and the other functions in fertilization. The former type has lost its ability to germinate, at least under in vitro conditions.