Abstract
<em>Bryoria forsteri </em>Olech and Bystr. is described as new to science. The species is endemic to Antarctica and differs from its nearest relative <em>Bryoria chalybeiformis </em>(L.) Brodo and D. Hawksw. in the lack of soralia; lack of proper pseudocyphellae; absence of fumarprotocetraric acid; in the different structure of the cortex and by having another kind of photobiont.
Highlights
In the course of studies on the flora of lichenized Ascomycotina on King George Island (South Shetland Islands, Antarctica), Bryoria genus was made the subject of critical revision
The material was collected in austral summer of 2001/2002 on the western shores of Admiralty Bay (King George Island), and additional samples were collected during the 1986-1988, and 1990-1991 seasons in the ice-free areas of King George Island and Livingston Island (South Shetlands)
Ecology and distribution: The thallus of Bryoria forsteri grows on mosses, Polytrichastrum alpinum, on glacial moraines, in flat places sheltered from winds, and on nunataks and flat rock plateaus
Summary
In the course of studies on the flora of lichenized Ascomycotina on King George Island (South Shetland Islands, Antarctica), Bryoria genus was made the subject of critical revision. The present paper is based upon the conclusion of the taxonomic revision of the genus Bryoria. The examination of the collected material has revealed a new species of the genus, which is described in this paper.
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