Lichens of Belgium, Luxembourg and northern France

no map available   Rhizocarpon riparium Räsänen

This is a synonym of R. geographicum subsp. kittilense (Räsänen) (provisionally placed here, art. 34.1b), which is unknown in the study area. The report of this taxon from Belgium by Hoffmann (1991) refers without any doubt to R. geographicum s.l.

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