Lichens of Belgium, Luxembourg and northern France
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Phaeophyscia orbicularis (Neck.) Moberg |
Syn.: Physcia orbicularis (Neck.) Poetsch, P. obscura (Humb.) Fürnr., P. cycloselis (Ach.) Vain., P. virella (Ach.) Flagey
Corticolous, mostly on isolated trees, also saxicolous, mainly on artificial substrata, very common in nitrophilous communities.
Belgium: Mar.: CC, Fl.: C-CC, Camp.: AC, Brab.: AC-C, elsewhere: C.
Luxembourg: Ard.: AR, Lorr.: C.
France: Mar.: R, Boul.: R, Pic.: R, Mosan, Ard., Lorr.: C.
Lit.: Boul.: 72, Ca: 155-156, Ho: 203, La66: 482-483, Qu: 113, 116-117, WS: 46, 92.