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THE SUBGENERIC CLASSIFICATION OF CLEMATIS (RANUNCULACEAE) IN TEMPERATE NORTH AMERICA NORTH OF MEXICO
Author(s) -
Keener Carl S.,
Dennis W. Michael
Publication year - 1982
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1220586
Subject(s) - ranunculaceae , subgenus , clematis , biology , botany , gray (unit) , taxonomy (biology) , geography , traditional medicine , herb , medicine , radiology , medicinal herbs
Summary Within North America north of Mexico, Clematis (Ranunculaceae) consists of 30 native or introduced species which are classified into four subgenera, viz., Clematis (9 species), Atragene (L.) Torrey & Gray (2 species, Viorna A. Gray (17 species), and Viticella (Moench) Keener & Dennis, stat. nov. (2 species). In particular, the history of the names “Atragene” and “Viorna” is reviewed with special attention to the major infrageneric rank (subgenus) in Asa Gray's publications.