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Occurrence and Phylogenetic Significance of Latex in the Malpighiaceae

Andrea S. Vega, Maria A. Castro and William R. Anderson
American Journal of Botany
Vol. 89, No. 11 (Nov., 2002), pp. 1725-1729
Stable URL: http://www.jstor.org/stable/4124096
Page Count: 5
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Occurrence and Phylogenetic Significance of Latex in the Malpighiaceae
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Abstract

Latex and laticifers are reported for the first time in the genera Galphimia and Verrucularia (Malpighiaceae), with description and illustration of the leaf and stem anatomy of both genera. Those genera and the other two in which latex is known (Lophanthera and Spachea) constitute a single tribe, Galphimieae, that is at or near the base of the family's phylogeny, which suggests that latex in the Malpighiaceae may indicate an ancestor shared with the Euphorbiaceae.

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