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Tetramelas thiopolizus comb. nov. with a key to all known species of Tetramelas

Published online by Cambridge University Press:  29 July 2011

Mireia GIRALT
Affiliation:
Departament de Bioquímica i Biotecnologia (Àrea de Botànica), Facultat d'Enologia de Tarragona, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007, Tarragona, Spain. Email: mireia.giralt@urv.cat
Philippe CLERC
Affiliation:
Conservatoire et jardin botaniques de la Ville de Genève, Case postale 60, CH-1292 Chambésy (GE), Switzerland.

Abstract

The study of the type and additional material of Buellia andicola, B. hypophana and B. reagens has shown that these taxa are conspecific with B. thiopoliza. Buellia thiopoliza is a muscicolous species growing at middle to high altitudes in the mountains of both hemispheres. It is easily recognized by its K+ purple-red yellow pigment mainly concentrated in the hypothecium, and by the presence of xanthones in the thallus and the apothecial tissues. The new combination Tetramelas thiopolizus is proposed. A key to all known Tetramelas species is included. The also muscicolous Buellia hypoleuca is reduced to synonymy with Phaeorrhiza sareptana var. sphaerocarpa.

Type
Research Article
Copyright
Copyright © British Lichen Society 2011

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