Addenda to the lichen flora of the Ticino river valley (western Po Plain, Italy) Author Gheza, Gabriele text Natural History Sciences 2018 2018-10-03 5 2 33 40 http://dx.doi.org/10.4081/nhs.2018.381 journal article 10.4081/nhs.2018.381 2385-0922 12809365 Cladonia caespiticia (Pers.) Flörke 1: on organic soil at the base of Pinus sp . (GG). 5: on soil (GG). 7: on bark of Q. robur (GG) . 8: on soil at the base of Calluna shrubs (GG). 12: on soil (GG). The species can be terricolous on acidic organic soil and epiphytic on acidic bark, especially at the base of trunks, in dry grasslands, Calluna heathlands and mixed woods. It was not reported by Valcuvia Passadore et al . (2002b) , even if it was listed in the checklist of the epiphytic lichens by Roella (1999) . Uncommon, but probably also overlooked, especially in the northern part of the study area.