Achyrothalamus reduced to Erythrocephalum (Asteraceae, Mutisieae)

Authors
Ortiz, S Coutinho, AP
Citation
S. Ortiz et Ap. Coutinho, Achyrothalamus reduced to Erythrocephalum (Asteraceae, Mutisieae), TAXON, 50(2), 2001, pp. 389-403
Citations number
38
Categorie Soggetti
Plant Sciences
Journal title
TAXON
ISSN journal
00400262 → ACNP
Volume
50
Issue
2
Year of publication
2001
Pages
389 - 403
Database
ISI
SICI code
0040-0262(200105)50:2<389:ARTE(M>2.0.ZU;2-Z
Abstract
The monotypic genus Achyrothalamus has been conventionally distinguished fr om Erythrocephalum principally by the absence of a pappus and the presence of phyllaries with entire margins. However, a critical re-examination of 83 morphological and anatomical characters, and a detailed study of the polle n of the two genera, suggest that recognition of Achyrothalamus as a distin ct genus is unjustified. We thus propose Achyrothalamus as a synonym of Ery throcephalum with the new combination E. marginatum.