]> [author note: Herbarium and types: BO; additional material at BRI, G, GRO, L (important set), P, PAS (Pasuruan material), SING] [collector note: collected mainly ferns; Java, Sumatra, Borneo, Celebes & Lesser Sunda Is. (col. 1925-39; col. 1939-45 only W. Java): BO, BRI, G, GRO, L, PAS, SING] Botany Posthumus, Oene Posthumus, Oene O. Posthumus Posth. Posthumus Oene Posthumus 1898 1945