Jepson Flora Project: Jepson Interchange for California Floristics    
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Ambrosia ×platyspina (Seaman) Strother & B. G. Baldwin
ASTERACEAE
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Information from the Index of California Plant Names (ICPN)
Current Jepson Flora Project Synonyms Hymenoclea platyspina Seaman
Initial Editorial Analysis 3 Jan 2011
Source of Report for California Strother & Baldwin, Madrono, in press (added manually by Rosatti)
Initial Editorial Comments evidently not mentioned in The Jepson Manual [Ed. 1]; hybrid between Ambrosia dumosa and Hymenoclea salsola indicated without hybrid name under Ambrosia dumosa and Hymenoclea salsola in TJDM, combination in Ambrosia made by Strother & Baldwin; Madrono in press.
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 21 Feb 2003 e-mail from Jeff Greenhouse see Comment 1
Editorial Comments 1 Correspondence 1 indicates publication of Ambrosia Xplatyspina (Seaman) Strother & B.G. Baldwin [not of Ambrosia xplatysperma, as originally indicated in this Index], based on Hymenoclea Xplatyspina Seaman (Madroño 23:111. 1975), in Madroño 49:143 (2002), so that this is a new combination, not a new name, since The Jepson Manual [Ed. 1]. [Spelling of epithet corrected to Ambrosia xplatyspina (Seaman) Strother & B. G. Baldwin, from Ambrosia xplatysperma (Seaman) Strother & B. G. Baldwin previously in this Index, 7 Mar 2003; correction actually made 14 Apr 2004, upon discovery that correction had not been made as stated.]
Correspondence 2 Treatment and author notes submitted for The Jepson Manual [Ed. 2] see Comment 2
Editorial Comments 2 Correspondence 2 indicates that for The Jepson Manual [Ed. 2] Ambrosia X platyspina (Seaman) Strother & B. G. Baldwin is to be treated partially, as a "spontaneous", "sterile" hybrid (Ambrosia dumosa X Ambrosia salsola), "occ" where ranges of parents overlap.
Editorial Summary and Current Status
Editorial Summary rejection, sterile hybrid
Current Status JFP-11, accepted name for taxonomically not recognized and/or sterile hybrid; hybrid form of name
Current Status Authority The Jepson Manual [Ed. 2]
Current Status Date 3 Jan 2011
List of names for this Current Status category
List of ICPN names in Ambrosia
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
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