. . "Piestus" . "Gravenhorst, 1806" . "593480" . _:b75614549 "8354980" . . "Piestus" . . _:b75614549 . . "Piestus Gravenhorst, 1806" . . . "8354980" . "Piestus" . . _:b75614549 . _:b75614549 "GBIF id" . _:b75614549 .