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Published In: Species Plantarum 1: 374. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 8/11/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/22/2009)


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1. Cercis L. (redbud)

Four to 14 species, temperate regions of North America, Europe, Asia.

Molecular studies have indicated that Cercis and the large tropical genus Bauhinia (orchid trees) are closely related and together occupy a basal position within the Fabaceae (Bruneau et al., 2001). The simple leaves of Cercis are thought to be derived from a pair of leaflets or lobes like those found in most Bauhinia species. Two species of Cercis have been described from North America: the wide-ranging C. canadensis in the eastern United States and Mexico, with more pointed heart-shaped leaves, and C. occidentalis Torr. & A. Gray in California, with more rounded, kidney-shaped leaves. Bruneau et al. (2001) concluded that C. canadensis is more closely related to the Eurasian C. siliquastrum L. than to C. occidentalis. The relationship probably dates back to the early Tertiary period when the two continents were much closer to another than in modern times (Davies et al., 2002).

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