Asia-Tropical:, Jawa (Jawa present); Malaya present; Sumatera (Sumatera present) Burma: present Kelantan: present
Burma, in Malesia: Malaya (one collection in Kelantan), Sumatra and Java (many localities), in lowland forest.
Apart from the reduced pinnae, this is very similar to Pronephrium lineatum (Bl.) Presl. It seems uniform over a wide area, and may be a tetraploid of hybrid origin.