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Floral Biology of American Ginseng (Panax quinquefolium)

Mark A. Schlessman
Bulletin of the Torrey Botanical Club
Vol. 112, No. 2 (Apr. - Jun., 1985), pp. 129-133
Published by: Torrey Botanical Society
DOI: 10.2307/2996409
Stable URL: http://www.jstor.org/stable/2996409
Page Count: 5
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Floral Biology of American Ginseng (Panax quinquefolium)
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Abstract

In a population of Panax quinquefolium in southeastern New York, reproductive individuals produce bisexual flowers with either a two-styled ovary containing two ovules or a one-styled ovary containing a single ovule The number of flowers produced, the ratio of two- to one-styled flowers, and the percentage of ovules maturing into seeds all increase with plant size Flowers are capable of autogamy Xenogamy is effected by syrphid flies and halictid bees Fecundity appears to be regulated by the availability of resources

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