"966844" . "Riella helicophylla var. helicophylla" . . "Riella helicophylla var. helicophylla (Bory & Mont.) Mont., 1852" . "Riella helicophylla var. helicophylla" . . "Riella helicophylla var. helicophylla" . . . . . "(Bory & Mont.) Mont., 1852" . .