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Arthonia fuscopurpurea (Tul.) R.Sant.


Lacks a thallus or its own photobiont (and arguably a "lichen" only as a member of a generally lichenised genus), occurs in the thallus of Peltigera hymenina, forming rounded, red-brown to blackish, flat to convex apothecia. Scattered records in the north and west, no doubt under-recorded but not common.

Refs: Smith et al. (2009), 162; Purvis et al. (1992), 81.

 
Arthonia fuscopurpurea in thallus of Peltigera hymenina
Arthonia fuscopurpurea in thallus of Peltigera hymenina
Arthonia fuscopurpurea in thallus of Peltigera hymenina
Arthonia fuscopurpurea in thallus of Peltigera hymenina
In thallus of Peltigera hymenina, Taynish, Argyllshire, May 2011, det. Brian Coppins (material lent by Les & Sue Knight).


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Uploaded May 2011, last modified November 2011