Jepson Flora Project: Jepson Interchange for California Floristics    
click for enlargement
Equisetum ×ferrissii Clute

Information from the Index of California Plant Names (ICPN)
Initial Editorial Analysis 15 Jun 2009
Notes on Authorship of Name = Authors of Plant Names
Source of Report for California Kartesz & Meacham
Initial Editorial Comments Intermediates between Equisetum hyemale subsp. affine and Equisetum laevigatum (aborted spores), according to The Jepson Manual [Ed. 1]
Correspondence and Comments Subsequent to Initial Analysis
Correspondence 1 Jun 2000 pers. comm. from Alan R. Smith see Comment 1
Editorial Comments 1 Correspondence 1 indicates addition only if other sterile hybrids included.
Correspondence 2 Treatment and notes submitted for The Jepson Manual [Ed. 2] by Robert E. Preston and Alan R. Smith (Family Editor) see Comment 2
Editorial Comments 2 Correspondence 2 indicates that for The Jepson Manual [Ed. 2] Equisetum X ferrissii Clute, though not reproducing sexually, does reproduce vegetatively, from fragmented sts, sometimes forming large populations, and sometimes at great distance from parents, so that it is to be given full treatment in The Jepson Manual [Ed. 2]. [Therefore, even though the hybrids are sterile, a Current Status of Jepson Flora Project-10 seem most appropriate at this time; also, according to Smith, the plant was named in honor of James H. Ferriss, a fern horticulturist from New England, and not Roxanna Ferris, so that the spelling of the epithet is correct as indicated in this Index, and the spellings "ferrisii", "ferrisiae" and others are incorrect.]
Editorial Summary and Current Status
Editorial Summary addition, for taxonomically recognized, albeit sterile, hybrid
Current Status JFP-10, accepted name for taxonomically recognized and/or fertile hybrid; hybrid form of name
Current Status Authority The Jepson Manual [Ed. 2]
Current Status Date 15 Jun 2009
List of names for this Current Status category
List of ICPN names in Equisetum
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
Manual imageJepson eFlora
link image ·Consortium of California Herbaria specimen records (includes links to BerkeleyMapper)
· Jepson eFlora page with bioregion map and CCH specimen records
Manual imageArchived Indexes from The Jepson Manual (1993; TJM1)
Site Search Search this site in Google for other references
calphotos logo 2Cal Photos images
Common names
link image IPNI
link image Tropicos Taxonomic information from the Missouri Botanical Garden
Calflora: Taxon report · Distribution · Observations
link image KBD Kew Bibliographic Database
Google Scholar Google Scholar
Google Books
link image JSTOR Plant Science

University & Jepson Herbaria
Copyright by the Regents of the University of California