Lichens of Belgium, Luxembourg and northern France
Caloplaca citrina (Hoffm.) Th. Fr. |
Saxicolous, on calcareous and siliceous rocks, very common on artificial substrata (concrete, walls, etc.), nitrophilous and tolerant to air pollution, rarely lignicolous or corticolous, at the base of trees.
Belgium: C-CC.
Luxembourg: C-CC.
France: C-CC.
Lit.: Ca: 85-86, Di: 70-71, Ho: 107, Ma: 156-161, NL93: 42, NL97: 20, 46, Qu: 79, VGH: 114.