Lichens of Belgium, Luxembourg and northern France

Distribution map of Melanohalea exasperata (De Not.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch  by Paul Diederich   Melanohalea exasperata (De Not.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch
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Melanohalea exasperata – – © 2005 by Norbert Stapper

Syn.: Melanelia exasperata (De Not.) Essl., Parmelia exasperata De Not., P. aspera A. Massal., P. aspidota (Ach.) Poetsch

Corticolous, mainly on the rather acid bark of branches and twigs of Fraxinus, Juglans, Populus, Pyrus, Quercus and Salix, in open habitats (meadows, orchards, etc.), incl. roadside trees, rarely found on trunks of roadside trees (Fraxinus, Juglans and Tilia).

Belgium: Mar.: RR, Brab.: RRR (†<1900), Mosan: R, Ard: R (1963), Lorr.: RR (1968).

Luxembourg: Ard.: RR, Lorr.: R.

France: Boul.: RRR (1969), Lorr.: R.

Lit.: La66: 426, WS: 38-39, 77, Diederich (1985a: 23), Van den Broeck (2005).

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