Abstract
A new genus of the tribe Polygonateae (Convallariaceae) from West China is described and named Heteropolygonatum. This genus is similar to Polygonatum, but differs from it in having short outer stamens and long inner ones, imbricate tepals, and both terminal and axillary inflorescences. Heteropolygonatum contains two species: H. roseolum and H. pendulum. In this paper, the former species is newly described and defined as the type of the genus, and the latter species is transferred from Polygonatum. They were also examined karyologically and proved to be diploid with a basic chromosome number of x=16, which does not coincide with that of Polygonatum.
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