Syn.: Parmelia borreri (Sm.) Turner, P. borreri var. pseudoborreri (Asahina) Lambinon & Targé

Corticolous, on isolated trees (in gardens, orchards, parcs, etc).

Belgium: Mar.: R, Fl.: R, Camp.: R, Brab.: RR, Mosan: R, Ard.: RRR, Lorr.: RRR.

Luxembourg: Lorr.: RR.

France: Pic.: RR. Probably overlooked.

Most herbarium specimens named P. borreri belong either to P. subrudecta or to P. ulophylla.

Lit.: La66: 442-443, Targé & Lambinon (1965).