Lichens of Belgium, Luxembourg and northern France

Distribution map of Biatoropsis usnearum Räsänen  by Paul Diederich   Biatoropsis usnearum Räsänen

Lichenicolous, on Usnea species, especially U. ceratina and U. subfloridana.

Belgium: Mosan: RRR, Ard.: RR.

Luxembourg: Ard.: RR, Lorr.: RRR (1966).

France: - .

Lit.: L6: 140, NL84: 12, Diederich (1996: 13-14), Diederich & Christiansen (1994).

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