Revision of Microgyne (Asteraceae: Astereae), the Correct Name for Microgynella

South American Microgyne Less. is resurrected from the synonymy of Microgynella. Microgyne Cass. is a nomen nudum and therefore not validly published. The replacement generic name Microgynella, a homotypic synonym of Microgyne Less., is illegitimate and superfluous. A revision is presented for the t...

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Bibliographic Details
Published in:Systematic botany 2006-10, Vol.31 (4), p.851-861
Main Authors: Sancho, Gisela, Bonifacino, José M, Pruski, John F
Format: Article
Language:English
Subjects:
Arachnoid
Arroyos
Asteraceae
Astereae
biological nomenclature
Botany
Compositae
Florets
flowers
geographical distribution
Inflorescences
leaves
Microgyne
Microgyne marchesiana
Microgyne trifurcata
Microgynella
new combination
New species
Pampas
plant anatomy
plant morphology
plant taxonomy
Research s
Stems
taxonomic keys
taxonomic revisions
Taxonomy
Testa
Trichomes
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Summary:South American Microgyne Less. is resurrected from the synonymy of Microgynella. Microgyne Cass. is a nomen nudum and therefore not validly published. The replacement generic name Microgynella, a homotypic synonym of Microgyne Less., is illegitimate and superfluous. A revision is presented for the two species of Microgyne, one herein described as new. The new species, Microgyne marchesiana, is described from Uruguay and is diagnosed by pinnatifid leaves, whitish pappus, and a thick testa. A neotype is designated for Microgyne trifurcata Less. Detailed descriptions and illustrations are provided for the two species, together with additional data on anatomy.
ISSN:0363-6445
1548-2324
DOI:10.1600/036364406779695843