Jepson Flora Project: Jepson Interchange for California Floristics    
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Lotus purshianus Clem. & E. G. Clem. var. purshianus

Information from the Index of California Plant Names (ICPN)
Initial Editorial Analysis 24 Feb 2010
Source of Report for California The Jepson Manual [Ed. 1]
Initial Editorial Comments as Lotus purshianus Clem. & E. G. Clem., listed as synonym of Lotus unifoliatus var. unifoliatus in Kartesz & Meacham
Editorial Recommendation author citation to be checked [resolved]
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 $ 8 Feb 2002, from Margriet Wetherwax see Comment 1
Editorial Comments 1 Correspondence 1 indicates author citation to be corrected to Lotus purshianus (Benth.) Ottley from Lotus purshianus (Benth.) Clem. & E. G. Clem. originally in The Jepson Manual [Ed. 1]. [The "nomenclatural steps taken by Kartesz & Gandhi" were based on a rather lengthy and complex discussion, with the conclusion that Lotus purshianus Clem. & E. G. Clem. was treated as a synonym of Lotus unifoliatus (Hook.) Benth. Evidently, the decision by MW/BGB to do just about the opposite, that is, to treat Lotus unifoliatus as a synonym of Lotus purshianus, is based on the fact that Kartesz & Gandhi did not examine type material of the two names to confirm that it belongs to the same species; in other words, it is possible they decided to act conservatively until the types can be studied. Differences between Kartesz & Gandhi and MW/BGB regarding the authorship of Lotus purshianus also are puzzling.]
Correspondence 2 6 Mar 2002 pers. comm. from John Strother see Comment 2
Editorial Comments 2 Correspondence 2 indicates agreement that Kartesz and Gandhi were correct to conclude that the correct citation is Lotus purshianus Clem. & E. G. Clem., and that a failure to consider type material leaves unanswered the question of which name to use. [According to Kartesz & Gandhi, Hosackia purshiana Benth. is superfluous and therefore illegitimate (Bentham should have used the epithet "americana", from Trigonella americana, and not "purshiana"). Because Clem. and E. G. Clem. provided not even an indirect reference to Hosackia purshiana Benth., and because Bentham's name was illegitimate, their publication of Lotus purshianus, which was otherwise both effective and valid, constitutes publication of a new species name, with priority from 1914. Thus, the correct citation is Lotus purshianus Clem. & E. G. Clem, corrected from Lotus purshianus (Benth.) Clem. & E. G. Clem, originally in The Jepson Manual [Ed. 1]. Kartesz and Gandhi also treated Lotus purshianus Clem. & E. G. Clem as a synonym of Lotus unifoliatus (Hook.) Benth., but did not cite type material in doing so, to verify that the types of the two names were conspecific. Therefore, until this determination is made, the choice of names remains unclear, even though the correct author citation of this name has been determined.]
Correspondence 3 Treatment and author notes submitted for The Jepson Manual [Ed. 2] by Luc Brouillet see Comment 3
Editorial Comments 3 Correspondence 3 indicates that for The Jepson Manual [Ed. 2] Lotus purshianus Clem. & E.G. Clem. var. purshianus is to be treated as a synonym of Acmispon americanus (Nutt.) Rydb. var. americanus.
Editorial Summary and Current Status
Editorial Summary rejection, different genus since The Jepson Manual [Ed. 1]
Current Status JFP-1a, taxonomic or nomenclatural synonym for taxon native to CA
Current Name Acmispon americanus (Nutt.) Rydb. var. americanus
Current Status Authority The Jepson Manual [Ed. 2]
Current Status Date 24 Feb 2010
List of names for this Current Status category
List of ICPN names in Lotus purshianus
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora in Lotus

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