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A remarkable new freshwater Verrucaria from Europe

Published online by Cambridge University Press:  11 November 2004

Alan ORANGE
Alan ORANGE
Affiliation:
Department of Biodiversity and Systematic Biology, National Museums and Galleries of Wales, Cathays Park, Cardiff CF10 3NP, U.K.
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Abstract

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Verrucaria madida is described as a new species with a green, subgelatinous thallus, and small ascospores; it is unique in the genus in having 4-spored asci. Three other small-spored freshwater species, V. aquatilis, V. rheitrophila and V. scabra, are compared. The type of pigment in the thallus cortex is a useful taxonomic character in the genus.

Keywords

Verrucariafreshwater lichensEurope
Type
Research Article
Information
The Lichenologist , Volume 36 , Issue 6 , November 2004 , pp. 349 - 354
Copyright
© British Lichen Society 2004