"Riddle, 1918" . . . _:b76357660 . "Leptogium marginellum var. isidiosellum Riddle, 1918" . "454689" . "Leptogium marginellum var. isidiosellum" . "Leptogium marginellum var. isidiosellum" . _:b76357660 "Index Fungorum id" . _:b76357660 . . "1022012" . . . . _:b76357660 "454689" . . _:b76357660 .