A new species of the genus Porpidia from Antarctica

To date, there have only been two endemic species of the lichen genus Porpidia known from the maritime Antarctic. A new endemic species, Porpidia submelinodes Osyczka & Olech, recognized in the South Shetlands and South Orkneys, is described in this paper. The species is primarily characterized...

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Bibliographic Details
Published inThe Lichenologist (London) Vol. 43; no. 4; pp. 367 - 371
Main Authors OSYCZKA, Piotr, OLECH, Maria
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.07.2011
Subjects
Endemic species
Islands
Lichens
Morphology
Porpidia
Thallus
Signy Island
Antarctica
South Shetland Islands
King George Island
British Isles, Scotland, Shetland
British Isles, Scotland, Orkney
lichenized fungi
Porpidiaceae
biodiversity
taxonomy
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Summary:To date, there have only been two endemic species of the lichen genus Porpidia known from the maritime Antarctic. A new endemic species, Porpidia submelinodes Osyczka & Olech, recognized in the South Shetlands and South Orkneys, is described in this paper. The species is primarily characterized by its rusty orange, sorediate thallus, composed of convex, well separated and rounded areoles, and by the absence of lichen secondary products detectable by TLC. The morphology and soralia of this new species correspond to the arctic-alpine and boreal-mountain lichen Porpidia melinodes. The paper also discusses the differences between these two taxa and all Porpidia species reported from Antarctica.
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ISSN:0024-2829
1096-1135
DOI:10.1017/S002428291100017X