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Vegetative Anatomical Data and Its Relationship to a Revised Classification of the Genera of Araceae

Richard C. Keating
Annals of the Missouri Botanical Garden
Vol. 91, No. 3 (Oct., 2004), pp. 485-494
Stable URL: http://www.jstor.org/stable/3298625
Page Count: 10
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Vegetative Anatomical Data and Its Relationship to a Revised Classification of the Genera of Araceae
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Abstract

A recent compilation of anatomical literature and original anatomical investigations of the leaf and petiole of Araceae led to a search for the most concise systematic organization of the genera within this family. Among structural data sets summarized, useful observations included those of type and position of conducting and mechanical tissue, aerenchyma, raphide crystals, and laticifers. These data were superimposed on three lines of evidence using DNA sequences. The revised classification presented here resulted in fewer anomalous generic placements and provides a framework for understanding the evolution of the family. Currently 106 genera are recognized and divided among 9 subfamilies and 21 tribes. The new subfamily Schismatoglottidoideae is described.

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