Lichens of Belgium, Luxembourg and northern France
Thelidium calcareum var. belgicum (Hue) Zahlbr. |
Syn.: Verrucaria calcivora Nyl. var. belgica Hue
Described from Belgium: Mosan (type locality) on a calcareous outcrop near Hastière-Lavaux (Hue 1898, Tonglet 1898), but no material seen. A name of uncertain application.