Pronephrium debile Unknown type category: Sumatra, G. Singgalang 1700 m, Beccari 433 Unknown type category, unknown type category: Java, G. Salak, Tjiapoes, Raciborski Unknown type category: Java, G. Salak, Tjiapoes, Raciborski (P) Unknown type category: Java, G. Salak, Tjiapoes, Raciborski (L)