The genusTaraxacum (Asteraceae) in the southern Hemisphere. I. The sectionAntarctica Handel-Mazzetti and notes on dandelions of Australasia

A survey ofTaraxacum taxa described from Latin America is presented.Taraxacum sect.Antarctica is revised taxonomically. The plants usually classified as members of the section in the southernmost South America, often under several species names, proved to represent a single taxon,Taraxacum gilliesii...

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Bibliographic Details
Published in:Folia geobotanica 2004-06, Vol.39 (2), p.205-220
Main Authors: Uhlemann, Ingo, Kirschner, Jan, Štěpánek, Jan
Format: Article
Language:English
Subjects:
Classification
Diploids
Nomenclature
Reproduction (biology)
Sexual reproduction
Southern Hemisphere
Synonymy
Taraxacum
Taxa
Types
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Summary:A survey ofTaraxacum taxa described from Latin America is presented.Taraxacum sect.Antarctica is revised taxonomically. The plants usually classified as members of the section in the southernmost South America, often under several species names, proved to represent a single taxon,Taraxacum gilliesii. The species proved to be diploid with 2n=16, reproducing sexually, which is documented by tetrad formation in megasporogenesis. The sexual reproduction is responsible for the considerable variation in a number of the species’ characters. Full synonymy, notes on the nomenclature (including typification) and a description of the section and the species are also given. An analysis of plants often referred to asT. magellanicum from New Zealand is given. Plants from Australia and New Zealand were found to be sexual and belonging to a new section,T. sect.Australasica.
ISSN:1211-9520
1874-9348
DOI:10.1007/BF02805246