Lichens of Belgium, Luxembourg and northern France

Distribution map of Thyrea confusa Henssen  by Paul Diederich   Thyrea confusa Henssen
Thyrea girardii »
see legend below picture
Thyrea confusa – France (Mosan), Ardennes, Givet, 1999, Diederich 15672 – © 2004 by Paul Diederich

Syn.: T. pulvinata auct., non (Schaer.) A. Massal., Omphalaria pulvinata auct., incl. f. canaliculata Tonglet

On hard calcareous rocks in sunny conditions, but submitted to periodic flushing.

Belgium: Mosan: R (type locality of f. canaliculata) (locally abundant near Dinant).

Luxembourg: - .

France: Mosan: RRR.

Lit.: DG: 20, Ertz: 20, La69: 101, NL84: 17, Tonglet (1898: 18).

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