Jepson Flora Project: Jepson Interchange for California Floristics    
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Pseudognaphalium canescens (DC.) Anderb. subsp. microcephalum (Nutt.) Kartesz
ASTERACEAE
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Information from the Index of California Plant Names (ICPN)
Initial Editorial Analysis 11 Apr 2005
Notes on Publication of Name [from International Plant Names Index-Gray Card Index] Synthesis N. Amer. Fl., version 1 [2]. 1999 [Aug 1999]. Combinations made in liner notes of CD.
Source of Report for California Kartesz & Meacham
Initial Editorial Comments treated as Gnaphalium canescens DC. subsp. microcephalum (Nutt.) Stebbins & D. J. Keil in The Jepson Manual [Ed. 1]
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 29 Jan 2002 e-mail from Margriet Wetherwax see Comment 1
Editorial Comments 1 Correspondence 1 indicates that combinations Kartesz made in Pseudognaphalium were validly published, with reference to the liner notes accompanying the CD Synthesis N. Amer. Fl., version 1 [2]. 1999 [Aug 1999]. [It is notable that although publication of these names by Kartesz is considered both effective and valid in ICBN (2001), it is recommended that this method not be used in the future.]
Correspondence 2 8 Apr 2005 e-mail from Jeff Greenhouse see Comment 2
Editorial Comments 2 Correspondence 2 indicates that Guy Nesom (The Jepson Manual [Ed. 2] Author; G.L. Nesom in Authors of Plant Names), in SIDA 21:781--783 (2004), recognized the four subspecies of Pseudognaphalium canescens occurring in California as separate species and published the new combination Pseudognaphalium thermale (E. E. Nelson) G. L. Nesom to accommodate his taxonomy. Thus, Pseudognaphalium canescens subsp. thermale is to be treated as Pseudognaphalium thermale (E. E. Nelson) G. L. Nesom; Pseudognaphalium canescens subsp. beneolens as Pseudognaphalium beneolens (Davidson) Anderb.; Pseudognaphalium canescens subsp. microcephalum as Pseudognaphalium microcephalum (Nutt.) Anderb.; and Pseudognaphalium canescens subsp. canescens as a synonym of Pseudognaphalium canescens.
Editorial Summary and Current Status
Editorial Summary rejection, different position, rank since The Jepson Manual [Ed. 1]
Current Status JFP-1a, taxonomic or nomenclatural synonym for taxon native to CA
Current Name Pseudognaphalium microcephalum (Nutt.) Anderb.
Current Status Authority Guy L. Nesom, as Author, The Jepson Manual [Ed. 2]
Current Status Date 11 Apr 2005
List of names for this Current Status category
List of ICPN names in Pseudognaphalium canescens
List of names from ICPN, Hrusa's Crosswalk, and Jepson Flora in Pseudognaphalium

Resources of the Jepson Flora Project: External links:
·Distribution maps: County distribution based on CCH specimens
link image ·Consortium of California Herbaria specimen records (includes links to BerkeleyMapper)
· Jepson eFlora page with bioregion map and CCH specimen records
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