"Physcia dubia f. dubia" . "Physcia dubia f. dubia" . _:b76339227 . "Physcia dubia f. dubia (Hoffm.) Lettau, 1912" . . "954605" . . _:b76339227 . "Physcia dubia f. dubia" . . . "441844" . . . _:b76339227 "Index Fungorum id" . . "(Hoffm.) Lettau, 1912" . . _:b76339227 "441844" . _:b76339227 .