Distribution
Ceylon present, Mascarene Islands present, NE. Australia present, NE. India present, Pacific: Hawaii present, Ryu Kyu Is present
Mascarene Islands, Ceylon, NE. India, Ryu Kyu Is. to Hawaii, and NE. Australia.
Taxonomy
A group of closely related species with closed xylem Strand, ± persistently scaly rhizome, and unipinnate leaves. The differences between most taxa are slight, and the present species and varieties are not quite satisfactory.
