Alyxia ridleyana Holotype: New Guinea, Papua, Utakwa River to Mt Carstensz., Kloss s.n. (BM) Isotype: New Guinea, Papua, Utakwa River to Mt Carstensz., Kloss s.n. (BM) Holotype: New Guinea, Papua, Bele River, 18 km NE of Lake Habbema., Brass 11577 (A)