PTERIDOPHYTA HALCONENSES. 
143 
Trichomanes Cumingii (Presl) C. Chr. (2'. Smithii Hook.) 
Epiphytic on Gyathea in ridge forest at 900 m. alt. (No. 6068). 
“Philippines” Cuming ; Mindanao. 
Moluccas. 
Trichomanes pallidum Bl. 
(а) On mossy trees at 1,000 m. alt. (No. 6069) ; all sterile, the typical plant. 
India to Polynesia. 
(б) On mossy trees at 1,400 m. alt. (No. 6070). The slender greener form, 
T. glauco-fuscum Hook., which is perhaps a good species. This is the commoner 
form in the Philippines. 
Trichomanes javanicum Bl. (T. rhomboideum J. Sm.). 
On ledges along streams in forests at 250 m. alt. (No. 6061). 
Very common in the Philippines. 
India to Polynesia and Liu Kiu. 
Trichomanes Pluma Hook. 
Terrestrial, in forests at 1,400 m. alt. (No. 6072). Most of the specimens 
are very large and broad. 
Mounts Maquiling, Banajao, Silay and Apo. 
Perak to Samoa. 
Trichomanes apiifolium Presl. 
Terrestrial in ridge forest at 900 m. alt. (No. 6073) ; amply distinct from 
the heterogeneous jumble of plants in my herbarium determined by various 
botanists as T. bauerianum and T. meifolium. 
Throughout the Archipelago usually at greater altitudes and often epiphytic. 
Java. 
Trichomanes maximum Bl. 
By streamlets in humid forests at 250 m. alt. (No. 6060). 
Central Luzon and south. 
Malaya, Polynesia and Queensland. 
Trichomanes rigidum Sw. 
On damp mossy boulders, terrestrial, and on cliffs in the ridge forests at 800 
to 1,400 m. alt. (Nos. 6074, 6075, 6076, 6077). I can not distinguish T. Cupress- 
oides Desv., to which on geographical grounds this plant would be ascribed. 
Common in the Philippines. 
Pantropic. 
Trichomanes radicans Sw. 
Terrestrial in damp ravines at 1,400 m. alt. (No. 6078), a remarkably large 
and stout form of this species. 
Pantropic and in Ireland, Japan and Alabama. 
HYMENOPHYLLUM Smith. 
Hymenophyllum dilatatum Sw. 
On banks in forests at 700 m. alt. (No. 6079) . 
Luzon, Mindanao. 
Malaya to Polynesia and New Zealand. 
