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Images of British Lichens



Caloplaca maritima (B. de Lesd.) B. de Lesd.


Thallus an areolate crust, generally yellow, sometimes tinged orange, the areoles convex and seeming waxy, thallus margins at most scarcely lobed, sometimes bordered with a thin yellow to greyish (Arup) [or almost white (Dobson)] prothallus; apothecia deep yellow to orange yellow. Understood only relatively recently and under-recorded, but evidently frequent at least on the south and west coasts, on rocks, walls and concrete on and above the shore.

Refs: Arup (1997), Lichenologist 29: 503-512 (photos); Smith et al. (2009), 267; Dobson (2005), 105 (photo); Dobson (2011), 114 (photo); van Herk & Aptroot (2004, 2013), 102-103 (photo); Wirth, Hauck & Schulz (2013), 1: 287, 306 (photo); Lichen Atlas of the British Isles 6: 280 (2001).

FGBI: http://fungi.myspecies.info/all-fungi/caloplaca-maritima

 
Caloplaca maritima
Caloplaca maritima
Caloplaca maritima
On old concrete jetty, Rubha a' Bhodaich, Isle of Bute, October 2008 (jetty has since crumbled into the sea, 2013)


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© A.J. Silverside
Uploaded October 2008, last updated January 2016