Asia-Temperate: Taiwan (Taiwan present), Asia-Tropical, Ceylon present, Southern India present
Southern India&Ceylon; Taiwan; throughout Malesia.
Specimens from Japan and China named T. beddomei in Herb. Kew. appear to me to be P. nipponica (Fr. & Sav.) Ching; they have pinna-lobes which are flat when dried and at maturity are covered beneath with sori, and their septate hairs are shorter, consisting of at most 3 cells.