"U.Braun, 1981" . . "Erysiphe convolvuli var. calystegiae" . . _:b76353144 "117605" . "117605" . "Erysiphe convolvuli var. calystegiae U.Braun, 1981" . _:b76353144 "Index Fungorum id" . "Erysiphe convolvuli var. calystegiae" . . "Erysiphe convolvuli var. calystegiae" . . _:b76353144 . . _:b76353144 . . . "867671" . _:b76353144 . .