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Omphalora, A New Genus in the Parmeliaceae

Published online by Cambridge University Press:  28 March 2007

Thomas H. Nash III ,
Josef Hafellner  and
Ralph S. Common
Thomas H. Nash III
Affiliation:
Department of Botany, Arizona State University, Tempe, AZ 85287-1601, USA.
Josef Hafellner
Affiliation:
Institut für Botanik, Karl-Franzens-Universität, Holteigasse 6, Graz, Austria.
Ralph S. Common
Affiliation:
Department of Botany & Plant Pathology, Michigan State University, East Lansing, MI 48824, USA.
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Abstract

The status of four umbilicate lichens with lecanorine apothecia and hyaline, 1-celled ascospores is reviewed. It is concluded that Omphalodium should be emended to exclude O. arizonicum and consequently a new genus Omphalora T. Nash & Hafellner is proposed. Differences in anatomy, morphology, pseudocyphellae type, pigmentation and cell wall chemistry, and ascal dehiscence provide the primary justification for the new genus.

Type
Research Article
Information
The Lichenologist , Volume 22 , Issue 4 , October 1990 , pp. 355 - 365
Copyright
Copyright © British Lichen Society 1990

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