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Science 18 July 1980:
Vol. 209. no. 4454, pp. 400 - 403
DOI: 10.1126/science.209.4454.400
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Articles

Intrafloral Pollen Differentiation in the New World Lecythidaceae, Subfamily Lecythidoideae

SCOTT ALAN MORI 1, JOHN ERIC ORCHARD 1, and GHILLEAN TOLMIE PRANCE 2

1 Divisão de Botânica, Centro de Pesquisas do Cacau, Caixa Postal 7, 45.600 Itabuna BA, Brazil
2 New York Botanical Garden, Bronx, New York 10458

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.

Submitted on November 29, 1979
Revised on April 4, 1980


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Floral organogenesis and floral evolution of the Lecythidoideae (Lecythidaceae).
C.-H. Tsou and S. A. Mori (2007)
Am. J. Botany 94, 716-736
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Science. ISSN 0036-8075 (print), 1095-9203 (online)