Jepson Flora Project: Jepson Interchange for California Floristics    
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Cercis occidentalis Torr. ex A. Gray

Information from the Index of California Plant Names (ICPN)
Current Jepson Flora Project Synonyms Cercis orbiculata Greene; Cercis canadensis L. var. orbiculata (Greene) Barneby
Initial Editorial Analysis 8 May 2006
Source of Report for California The Jepson Manual [Ed. 1]
Initial Editorial Comments author citation uncertain, Torr. ex A. Gray in Kartesz & Meacham; treated as synonym of Cercis canadensis var. texensis (S. Watson) M Hopkins (both = Authors of Plant Names), indicated only for TX, OK in Kartesz & Meacham
Editorial Recommendation author citation to be checked [resolved]
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 23 Feb 2006 e-mail from Jeff Greenhouse see Comment 1
Editorial Comments 1 Correspondence 1 indicates that Cercis occidentalis was published by Asa Gray (A. Gray in Authors of Plant Names) in Boston J. Nat. Hist. 6: 177. 1850, wherein he ascribed the name to "Torr. ined." but supplied his own description. [Therefore, author citation corrected to Cercis occidentalis Torr. ex A. Gray, from Cercis occidentalis Torr. previously in this Index, 23 Feb 2006.]
Correspondence 2 Treatment and author notes submitted for The Jepson Manual [Ed. 2] by Martin F. Wojciechowski see Comment 2
Editorial Comments 2 Correspondence 2 indicates that: both the number of taxa in Cercis that are represented by plants in North America and the correct name for those taxa are controversial; that evidence from molecular biology (Davis et al, 2002, Systematic Botany) as well as chemistry (Salatino et al, 2000, Biochem Systematics and Ecology) supports recognition, albeit weakly, of two species in North America, Cercis canadensis L. (1753) and Cercis occidentalis A. Gray (1850); that if this taxonomy is accepted, which it is to be in The Jepson Manual [Ed. 2], the correct name to be used for the latter is uncertain, owing primarily to the fact that A. Gray, in describing C. occidentalis, designated two type specimens, one from California and the other from TX; that different workers have accepted one or the other of these specimens as the type, resulting in different "correct names" for the species; that if the specimen from TX is selected as the type for Cercis occidentalis, then that name would apply only to the plants in TX, and Cercis orbiculata Greene (1912) would have to be used for the plants in CA; and that since the choice for The Jepson Manual [Ed. 2] is that the California specimen is the type, the correct name for the plants in California is Cercis occidentalis, with Cercis orbiculata as a later synonym.
Editorial Summary and Current Status
Editorial Summary retention
Current Status JFP-1, accepted name for taxon native to CA
Current Status Authority The Jepson Manual [Ed. 2]
Current Status Date 8 May 2006
List of names for this Current Status category
List of ICPN names in Cercis
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora in Cercis

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
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Manual imageArchived Indexes from The Jepson Manual (1993; TJM1)
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