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Rediscovery of Senecio australis Willd. (Asteraceae) after nearly two centuries
Author(s) -
Belcher Robert O.
Publication year - 1992
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1222332
Subject(s) - asteraceae , senecio , holotype , taxon , botany , biology , correct name , taxonomy (biology)
Summary Belcher, R. O.: Rediscovery of Senecio australis Willd. (Asteraceae) after nearly two centuries. ‐ Taxon 41: 235–252. 1992. ‐ ISSN 0040‐0262. Senecio australis Willd. is based on a Forster specimen said to be from New Zealand but has never again been collected there. Willdenow's name was misapplied by Sprengel to a taxon of the S. linearifolius complex of Australia, a usage rejected by Willis (1957). Hooker and Bentham both supposed S. australis to be some part of S. lautus G. Forster ex Willd. The question has remained controversial. It is here demonstrated that specimens collected on Norfolk Island and adjacent islets are identical with the holotype of S. australis , and are specifically distinct from the holotype of S. lautus. These two species are readily distinguished by consistent significant differences in calycular bracteoles, numbers of ray florets, and other features.