Extensive colonization of volcanic ash by an unusual form of Peltigera didactyla at Deception Island, maritime Antarctic

Smith, Ronald I. Lewis. 2005 Extensive colonization of volcanic ash by an unusual form of Peltigera didactyla at Deception Island, maritime Antarctic. Lichenologist, 37 (4). 367-368. https://doi.org/10.1017/S0024282905015252

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Abstract/Summary

Peltigera didactyla (With.) J. R. Laundon has a cosmopolitan distribution, but in the Antarctic it is very restricted and is nowhere common or abundant, occurring at a number of sites in the northern maritime Antarctic extending to 65°S (Øvstedal & Lewis-Smith, 2001). Within its Antarctic distribution it appears to be most frequent on Signy Island, South Orkney Islands. Typically, this species grows as small colonies amongst mosses in relatively dry, gravelly, sheltered habitats, forming aggregations of lobed sorediate thalli up to c. 10–15 (rarely to c. 25) cm diameter.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1017/S0024282905015252
Programmes:	BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Life at the Edge - Stresses and Thresholds
ISSN:	0024-2829
Additional Keywords:	Lichens
NORA Subject Terms:	Botany
Date made live:	01 Feb 2008 12:10 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/2005

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