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Vascular Bundles in Petioles of Some Herbaceous and Woody Dicotyledons

Andrew B. Maksymowych, Joseph A. J. Orkwiszewski and Roman Maksymowych
American Journal of Botany
Vol. 70, No. 9 (Oct., 1983), pp. 1289-1296
Stable URL: http://www.jstor.org/stable/2443419
Page Count: 8
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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.
Vascular Bundles in Petioles of Some Herbaceous and Woody Dicotyledons
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Abstract

Structure and distribution of vascular bundles (VB) have been investigated in petioles of 26 herbaceous and woody dicotyledons. No single pattern of vascular bundle distribution could be found for both groups of plants. Both groups of plants had VB patterns ranging from a cylinder to separate bundles arranged in a variety of patterns, e.g., distorted cylinder, various configurations of a crescent, and other types. The total number of xylem vessels in herbaceous and woody plant petioles varied between 110 and 1756.

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