. _:b76319115 . "Tuber excavatum" . _:b75750839 . "Tuber excavatum" . _:b75750839 "5258465" . . _:b75750839 . . _:b76319115 . "Tuber excavatum" . . . _:b76319115 . "226823" . _:b76319115 "Index Fungorum id" . "5258465" . _:b76319115 "226823" . . "50180" . . _:b75750839 "GBIF id" . "Vittad., 1831" . . . . _:b75750839 . "Tuber excavatum Vittad., 1831" . .