NovEMBER 15, 1910] THE Ferns or Mount Apo 837 
Polypodium setigerum Bl. 
On trunks in wet woods, Mt. Apo, alt. 2000 m., 
No. 11440. ''Baraway-latong." Collected in the same vici- 
nity by Williams and myself, unknown elsewhere in the Phil- 
ippines. 
Malaya. 
Polypodium caespitosum (BI.) Mett. 
In mossy forest, Mt. Apo, alt. 1800 m., Copeland 1010. 
Mt. Pulog in Luzon. 
Java. 
Polypodium congenerum (Bl.) Presl. 
In mossy forest, Mt. Apo, alt. 1700 to 1900 m., Cope- 
land 1008, 1009, 1523; Williams 2487. 
Horn of Negros, Benguet. 
Malaya. 
Polypodium pubinerve (BI.) Christ. 
Mixed with P. dolichosorum, Mt. Calelan, No. 10636.” 
P. setosum var. calvum Copel. from Mt. Halcon would possibly 
best be referred here; the species is otherwise new to the 
Philippines. 
Java, Celebes. 
Polypodium fasciatum (BI.) Mett. 
On mossy ground or limbs, with P. dolichosorum, Mt. 
Calelan, alt. 2300 m., No. 10636."  ''Marintok." Prac- 
tically identical with fertile fronds of Javan specimens, and 
with Blume’s figure. 
The only other Philippine collections are from northern 
Luzon, and have very narrow fronds. 
Malaya. 
Polypodium durum Copel. spec. nova. 
Rhizomate breve, repente, 2 mm. crasso, paleis ochra- 
ceis ovatis acuminatis integris 7 mm. longis dense vestito; 
