Lichens of Belgium, Luxembourg and northern France

Distribution map of Physconia grisea (Lam.) Poelt © by Paul Diederich   Physconia grisea (Lam.) Poelt
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Physconia grisea – Luxembourg (Lorr.), Pulvermühle – © 1998 by Charles Reckinger

Syn.: Physcia grisea (Lam.) Zahlbr.

Corticolous on old roadside trees and in orchards (mainly Fraxinus, Populus, Tilia and Ulmus, also on Malus, Pyrus, etc.), rare on concrete or on old calcareous walls, always in rather nitrophilous conditions.

Belgium: Mar.: C, Fl.: C, Brab.: C, elsewhere: AC-AR.

Luxembourg: Ard.: R, Lorr.: AC.

France: Mar.: RR, Boul.: R, Pic.: R, Mosan, Ard., Lorr.: AC-AR.

Lit.: Boul.: 72, Ca: 164-165, Ho: 220, La66: 479-480, Qu: 122-123, VGH: 114, WS: 52, 103.

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