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Images of British Lichens

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Bacidia bagliettoana (A.Massal. & De Not.) Jatta

Thallus effuse, white to pale grey, coarsely granular; apothecia approx. 1mm diameter, black, flat, becominging only slightly convex. Widespread but local, commonly growing over mosses and plant debris, or on bare, calcareous, sandy soil or on old walls. Refs: Smith et al. (2009), 196; Purvis et al. (1992), 111; Dobson (2005), 77-78 (photo); Dobson (2011), 84-5 (photo); van Herk & Aptroot (2004), 72-3 (photo); Puntillo (1996), plate 5 (photo); Thomson (1997), 98, 99 (photo). Bilimbia sabuletorum occurs in similar habitats, differing in its brown, very convex apothecia and different spores.

 

Growing over mosses, on thin, sandy ground over limestone, Stackpole, Pembrokeshire, May 2009

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Uploaded January 2012