Physconia grisea (Lam.) Poelt

Gheza, Gabriele, Nascimbene, Juri, Barcella, Matteo, Bracco, Francesco & Assini, Silvia, 2022, Epiphytic lichens of woodland habitats in the lower Ticino river valley and in the “ Bosco Siro Negri ” Integral Nature State Reserve (NW Italy), Natural History Sciences 9 (2), pp. 7-18 : 13

Physconia grisea (Lam.) Poelt

Bosco Siro Negri: in the core forest fragment, only on twigs fallen to the ground from the canopy, on Quercus robur ; in the surrounding woodlands, on Populus sp. , Robinia pseudoacacia , Tilia sp. ; in poplar plantations, on Quercus robur .

Sites 2.10, 2.12, 3.09, 3.11.

* Pseudoschismatomma rufescens (Pers.) Ertz & Tehler Bosco Siro Negri : in the surrounding woodlands, on Quercus robur , Robinia pseudoacacia ; in poplar plantations, on Quercus robur , Robinia pseudoacacia .

Sites 1.04, 1.05, 1.06, 1.08, 1.10, 1.11, 1.13, 1.14, 2.01, 2.02, 2.03, 2.06, 2.07, 2.10, 2.13, 2.14, 2.15.

Observed frequently in well-preserved woodlands also on Carpinus betulus (sites 1.01, 1.03, 1.04, 1.06, 1.07, 1.09, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15) and less frequently in degraded woodlands on Robinia pseudoacacia (sites 2.04, 2.07, 2.08, 2.09, 2.13).