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THE TYPIFICATION OF MECODIUM AND THE QUESTION OF PSEUDO‐ISONYMY
Author(s) -
Price M. G.
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 - 10.2307/1220529
Subject(s) - typification , homonym (biology) , genus , nomenclature , subdivision , genealogy , type (biology) , zoology , evolutionary biology , geography , biology , taxonomy (biology) , ecology , archaeology , history
Summary Mecodium as a subdivision of the genus Hymenophyllum has a different type than when it is ranked as a genus. As a legitimate generic name, it must be typified by M. diversilabium Copel., a fact overlooked since the original publication, and many combinations have been made in a later homonym. If considered to apply to the original genus, these combinations are later pseudo‐isonyms. It is argued that later pseudo‐isonyms have no actual existence in nomenclature and do not necessitate the making of new combinations.