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Science 24 October 1969:
Vol. 166. no. 3904, pp. 506 - 508
DOI: 10.1126/science.166.3904.506
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Articles

Flower of Tetraplasandra gymnocarpa Hypogyny with Epigynous Ancestry

Richard H. Eyde 1 and Charles C. Tseng 2

1 Department of Botany., Smithsonian Institution, Washington, D.C. 20560
2 Department of Biology, Windham College, Putney, Vermont 05346

Comparative herbarium studies, floral anatomy, and distributional data show that Tetraplasandra gymnocarpa, an araliad with hypogynous flowers, evolved in Hawaii from ancestors with epigynous flowers. Suggested causes for this reversal of a well-known evolutionary trend are (i) isolation of the ancestors from flowereating predators and (ii) selection for increased outcrossing.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The development of the superior ovary in Tetraplasandra (Araliaceae).
A. Costello and T. J. Motley (2004)
Am. J. Botany 91, 644-655
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Floral development and morphology of Vochysiaceae. I. The structure of the gynoecium.
A. Litt and D. W. Stevenson (2003)
Am. J. Botany 90, 1533-1547
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Structural homology and developmental transformations associated with ovary diversification in Lithophragma (Saxifragaceae).
R. K. Kuzoff, L. Hufford, and D. E. Soltis (2001)
Am. J. Botany 88, 196-205
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