Fonte
Ravera S, Cogoni A, Totti C, Aleffi M, Assini S, Caporale S, Fačkovcová Z, Giorgia Filippino, Gheza G, Olivieri N, Ottonello M, Paoli L, Poponessi S, Pišút I, Venanzoni R (2016) Notulae to the Italian flora of algae, bryophytes, fungi and lichens: 2. Italian Botanist 2: 43–54. doi: 10.3897/italianbotanist.2.10812
