Distribution
Asia-Tropical: Philippines (Philippines present), Luzon present, Zambales Prov present
Malesia: Philippines (Luzon); a second collection is M. G. Price 2553, Zambales Prov., from exposed place by stream (small plants).
Notes
S. angustifolius is very near S. heterocarpus; it is peculiar in its very narrow pinnae.
Citation
Hook. 1862 – In: Spec. Fil.: 69
v.A.v.R. 1908: Handb.: 228