The morphology, anatomy, chemistry, ecology and distribution of twenty
-three Rinodina species present in the Netherlands, Belgium and Luxemb
ourg are discussed. This includes R. archaea, R. aspersa, R. atrociner
ea, R. bischoffii, R. calcarea, R. confragosa, R. conradii, R. dubyana
, R. efflorescens, R. gennarii, R. griseosoralifera, R. immersa, R. in
terpolata, R. lecanorina, R. occulta, R. oleae, R. oxydata (incl. R. v
ezdae), R. pityrea, R. pyrina, R. sicula, R. sophodes, R. teichophila
and R. tunicata. New data on the chemistry of R. sicula are given. Som
e illustrations, distribution maps and a key to the species are provid
ed.