Lichens of Belgium, Luxembourg and northern France
Usnea silesiaca Motyka |
Syn.: Usnea madeirensis Motyka
On trees (Fagus) inside forests, for the Belgian collections, unknown for the Luxembourg specimen.
Belgium: Ard.: RR (†1959).
Luxembourg: Distr. unknown: RRR (†<1850).
France: - .
Now extinct throughout the area of study.
Lit.: L8: 84, Clerc (1991: 436).