Blastodesmia nitida A. Massal.

Syn.: Polyblastia nitida (A. Massal.) Trevis., Pyrenula circumfusa (Nyl.) Trevis., Verrucaria massalongii Garov.
Non- or doubtfully lichenised.
Substrate: bark
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a typically submediterranean early coloniser of smooth bark, especially of Fraxinus ornus; in the study area so far only known from the Southern Alps, at low elevations.
Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia;