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Recognition of the New World Disporum Section Prosartes as Prosartes (Liliaceae) Based on the Sequence Data of the rbcL Gene

Zabta Khan Shinwari, Ryohei Terauchi, Fredrick H. Utech and Shoichi Kawano
Taxon
Vol. 43, No. 3 (Aug., 1994), pp. 353-366
DOI: 10.2307/1222713
Stable URL: http://www.jstor.org/stable/1222713
Page Count: 14
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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.
Recognition of the New World Disporum Section Prosartes as Prosartes (Liliaceae) Based on the Sequence Data of the rbcL Gene
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Abstract

A review of the morphological and karyological data relevant to the problem of the generic distinctness of Disporum and Prosartes is presented. The chloroplast gene encoding rbcL for two species of each Disporum and Prosartes plus one of each Uvularia, Streptopus and Tricyrtis was sequenced. The data clearly separate two genera Prosartes (N. America) and Disporum (E. Asia) that were traditionally combined under the latter name. There is much more divergence between Disporum and Prosartes than between each pair of their component species, and considerably more than between Disporum and Uvularia or between Prosartes and Streptopus. The rbcL sequence data thus support the restoration of the genus Prosartes. A synonymic conspectus of Prosartes is given, and one new combination is proposed.

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