Grube M. & Giralt M.
(1996):
Studies on some species of Arthothelium occurring in the western Mediterranean,
Lichenologist,
28(1): 15–36
We present a survey of the six known species of Arthothelium occurring
in the western Mediterranean. The oceanic A. lirellans, which may occur in the
study area, is included for comparison; A. taediosoides is described as new and a key
to all species is given. Arthothelium as understood today is composed of more-or-less
distinct natural groups of species, some of them being compared here. Representatives
of the A. sardoum group are related to species of the Arthonia radiata or
A. galactites …
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