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New Species or Interesting Records of Foliicolous Lichens. I. Trichothelium Argenteum (Lichenized Ascomycetes: Trichotheliaceae)

Published online by Cambridge University Press:  28 March 2007

Robert LÜcking
Affiliation:
Abteilung Spezielle Botanik (Biologie V), Universität Ulm, D-89069 Ulm, Germany
Lidia Itati Ferraro
Affiliation:
lnstituto de Botanica del Nordeste (IBONE), C. C. 209, 3400 Corrientes, Argentina.

Abstract

Trichothelium argenteum R. Lücking & L. I. Ferraro sp. nov. is distinguished by its very large perithecia with a well-developed, silvery white, basally black crown of setae, and by a non-radiate phycobiont. In young perithecia, the setae are confluent and form a characteristic, two-coloured disc-like expansion. Ascospores are 7-septate and bacillar. Trichothelium argenteum is known from a few populations in Costa Rica, Ecuador, Brazil, Paraguay, and Argentina.

Type
Research Article
Copyright
Copyright © British Lichen Society 1997

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