Cladonia portentosa (Dufour) Coem.

Gheza, Gabriele, 2018, Addenda to the lichen flora of the Ticino river valley (western Po Plain, Italy), Natural History Sciences 5 (2), pp. 33-40 : 36-38

Cladonia portentosa (Dufour) Coem.

5: on humified soil (GG). 6: on sandy-pebbly and humified soil (GG; GG15). 11: on sandy-pebbly and humified soil (GG). 14: on sandy-pebbly and humified soil (GG; GG15). 18: on sandy-pebbly and humified soil (GG; RA16). 19: on sandy-pebbly and humified soil (GG).

Terricolous, mostly found on evolved soils in thick lichen mats. The species was not reported for site 5 by Gheza (2015), but a deeper study of the area allowed to find several thalli in an undisturbed clearing in the wood near the dry grassland surveyed for that paper, together with two thalli of C. uncialis (see below). Sites 5 and 19 are the fourth and fifth occurrence sites of the species on the western side of the river valley (see Ravera et al. (2016) for an overview). The record from site 11 is the only one for the eastern side. Very rare.