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Platythecium seychellense, a new species in the family Graphidaceae (lichenized Ascomycota: Ostropales) from the Seychelles and a world key to the genus

Published online by Cambridge University Press:  18 January 2017

Gerhard NEUWIRTH
Affiliation:
Rabenberg 18, A-4911 Tumeltsham/ Ried, Austria. Email: gerh.neuwirth@tele2.at
André APTROOT
Affiliation:
ABL Herbarium, G. v. d. Veenstraat 107, NL-3762 XK Soest, The Netherlands
Elfie STOCKER-WÖRGÖTTER
Affiliation:
Karl-Franzens-University of Graz, Institute of Plant Sciences, Holteigasse 6, A-8010 Graz, Austria

Abstract

The new corticolous lichen fungus Platythecium seychellense is described from the Seychelles. Morphological characters as well as distribution and resemblance to related species are discussed. The species is characterized by a crustose, grey-green, smooth thallus lacking lichen substances, elongate and slender apothecia having flat, red-brown discs and grey 3-septate ascospores. A world key to all currently known species in the genus is presented.

Type
Articles
Copyright
© British Lichen Society, 2017 

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