LICHALP

Parabagliettoa cyanea (A. Massal.) Gueidan & Cl. Roux

Syn.: Involucrothele limitata (Nyl.) Servít, Thelidium limitatum (Nyl.) Servít, Verrucaria cyanea A. Massal., Verrucaria decussata Garov., Verrucaria dufourii DC. v. limitata Nyl., Verrucaria limitata Kremp. ex A. Massal. nom.illeg.

Lichenised.

Substrate: calciferous rocks

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: on steeply inclined surfaces of compact limestone and dolomite in sheltered situations, with optimum in the submediterranean belt; the species differs from P. dufourii in the smaller, less prominent perithecia, and in the thalli typically forming mosaics, with conspecific thalli separated by dark lines; the lines produced by one thallus typically do not merge completely with that of its neighbour, so that the lines appear as double.