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PATTERNS OF VARIATION IN NORTH TEMPERATE TAXA WITH A WIDE DISTRIBUTION
Author(s) -
Valentine D.H.
Publication year - 1976
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1219442
Subject(s) - temperate climate , taxon , biology , variation (astronomy) , ecology , taxonomic rank , flora (microbiology) , geography , zoology , paleontology , physics , astrophysics , bacteria
Summary Our knowledge of patterns of variation and evolution in groups of allied species of the north temperate flora is gradually increasing; but relatively few groups have been studied cytotaxonomically or analysed genomically. Data for three groups of species, in the genera Viola, Maianthemum and Polypodium , are reviewed, and resemblances and differences between them discussed. The importance of further biosystematic work of this kind, including ecological as well as taxonomic studies, and organised on an international basis, is pointed out.