Coccocarpia erythroxyli
Lichenized, cyanobiont is Scytonema (Swinscow & Krog, 1988).
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The thallus of Coccocarpia erythroxyli is foliose and orbicular, with partially imbricate lobes measuring 2-9 mm wide. The lobes are widely cuneate to flabellate, and have rounded apices. C. erythroxyli has a blue-gray upper surface which turns darker when wet, and a tan to dark brown lower surface occasionally with a blue cast. Thick blue-green to blue-black tomentum are present. The medulla is thin and white. Pycnidia are common, with bifusiform pycnidiospores measuring 0.5-1 x 3-4 μm. Lecideine apothecia are common on the surface of lobes. The apothecia are flesh colored to brownish red to black, with a diameter of 1-4 mm. Ascospores are ellipsoid, 15 x 5 μm. (Brodo et al. 2001; Park 1990; Cornelissen, 1989; Swinscow 1988)
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This generally pantropical species also occurs in temperate, and rarely arctic, regions. (Seaward 2002; Swinscow 1988)
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In North America, Coccocarpia ertyhroxyli is a corticolous species occurring in tropical or subtropical woodlands and sometimes also grows on the ground in alpine tundra(Brodo et al, 2001). In Hong Kong, C. ertyhroxyli is found growing on rocks (Seaward et al, 2005), while in East Africa it is found often occurring with bryophytes on shaded tree trunks (Swinscow et al, 1988).
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