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Journal Article

Sex Expression in Jack-in-the-Pulpit

Josephine W. Ewing and Richard M. Klein
Bulletin of the Torrey Botanical Club
Vol. 109, No. 1 (Jan. - Mar., 1982), pp. 47-50
Published by: Torrey Botanical Society
DOI: 10.2307/2484467
Stable URL: http://www.jstor.org/stable/2484467
Page Count: 4

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Topics: Plants, Spathes, Corms, Inflorescences, Flowers, Pigmentation, Flowering, Leaves, Petioles, Correlations
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Sex Expression in Jack-in-the-Pulpit
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Abstract

Jack-in-the-pulpit, Arisaema triphyllum (L.) Schott., may bear monoecious or dioecious flowering stalks. Sex expression is not fixed, but may vary from season to season. Pistillate plants tended to be larger than staminate plants, with monoecious plants being intermediate in size, but no single morphometric measurement or combination of measurements separated these plants. Spathe and spadix colors varied independently and appear to be under genetic rather than environmental control

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