NovEgMBER 15, 1910] THe Ferns or Mount Apo 839 
Polypodium muscoides Copel. spec. nova. 
P. gregis P. cucullati, minutum; rhizomate breve, erecto; 
stipitibus brevibus, confertis, haud articulatis; fronde usque 
ad 5 cm. (plerumque ca. 3 cm.) longa, 3 mm. lata, ad 
costam alatam in segmenta ob partes inferiores infraflexas trian- 
gularia 1 mm. lata proxima pinnatifida; soro solitario, more 
P. cucullati protecto. 
Mt. Apo, alt. 2150 m., No. 11453. ''Sigbut." Forming 
dense soft patches at the bases of mossy trunks. 
This is the smallest known species in its group. P. 
alternidens and P. gracillimum are not only larger, but also 
have the segments relatively remote and less compact in 
shape. 
Polypodium clavifer Hook. 
Small tufts upon mossy trunks and roots., No. 10641. 
The individual segments are altogether like those of P. Yoderi. 
New to the Philippines. 
Borneo, New Guinea. 
Polypodium solidum (Kze.) Mett. 
In tree tops on ridges, alt. 1200 m., No. 11267. ''Ba- 
gabi-cayo." Small specimens are Grammitis denticulata Bl. 
Collected before on Apo. 
Java. 
Polypodium celebicum Bl. 
On mossy trunks, Mt. Apo, alt. 1700 m., No. 11421. 
"*Libagod." 
Mindanao, Negros, Mindoro, Luzon; wherever the mossy 
forest is best developed. 
Malaya. 
Polypodium multicaudatum Copel. in P. J. S. 1, Suppl. 
(1906) 160. 
On mossy trunks, Mt. Apo, alt. 1750 m., No. 11422. 
**Libagod." j . 
