NOVEMBER 15, 1910] Tae Ferns or Mount Aro 801 
Horn of Negros, Mt. Halcon. 
England to New Zealand and Chile. 
Hymenophyllum serrulatum (Pr.) C. Chr. 
On mossy trees, Mt. Apo, alt. 1450 m., Copeland 996. 
Negros, Luzon. 
New Guinea. 
Hymenophyllum sp. 
On mossy trunks, Mt. Apo, alt, 1850 m., Copeland 1053. 
This is a mixture, in part apparently H. polyanthos  Swtz., 
aud for the rest probably new. 
TRICHOMANES Linn. 
Trichomanes gemmatum J. Sm. 
Mt. Calelan, No. 11855; Mt. Apo, alt. 1900 m., Cope- 
land 1054, 
Northward to central Luzon. 
Malaya, New Guinea. 
Trichomanes apiifolium Pr. 
Mt. Calelan, alt. 1400 m., No. 1180 3". Rather common 
in the mossy forest. 
Throughout the Philippines. 
Java. 
Trichomanes maximum BI. 
On a cut bank, Mt. Apo, Williams 2495. 
Throughout the Philippines. 
Malaya to Queensland and Polynesia. 
Trichomanes cupressoides Desv. 
On rocks in mossy forest, Mt. Apo, alt. 1800 m., Cope- 
land 1109. 
Throughout the Philippines. 
