Asia-Tropical: Philippines (Philippines present), Luzon present, Panay present
Malesia: Philippines (Luzon, Panay), in forest at 300-1000 m.
Some pinnae are irregularly lobed on most specimens; this suggests hybridization. One sterile frond of Cuming 51 at Kew has very long distal lobes which are crenate with pleocnemioid venation. The only specimen seen with reduced basal pinnae is one of Cuming 102 at Edinburgh. The specimens listed by Christ in 1907 under D. diversiloba represent several other species; he re-described Presl's species as D. acromanes from Cuming 51 and other specimens now apparently lost.