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Tasmidella, A New Lichen Genus from Tasmania, with A Revised Circumscription of the Family Megalariaceae

Published online by Cambridge University Press:  28 March 2007

Gintaras Kantvilas
Tasmanian Herbarium, G.P.O. Box 252–04, Hobart, Tasmania 7001, Australia
Josef Hafellner
lnstitut für Botanik, Karl-Franzens-Universität Graz, Holteigasse 6, A-8010 Graz, Austria.
John. A. Elix
Department of Chemistry, The Faculties, Australian National University, Canberra 0200, A.C.T., Australia.


The new crustose lichen genus Tasmidella, containing the species, T. variabilis sp. nov with two varieties, var. variabilis and var. inactiva var. nov., is described. Tasmidella is most closely related to Megalaria, from which it differs chiefly by having simple ascospores with a layered wall. Relationships with superficially similar genera are discussed. A revised circumscription of the family Megalariaceae is provided to take into account the inclusion of a second genus.

Research Article
Copyright © British Lichen Society 1999

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