410 LeaFiets or Paruiprpings BOTANY [Vorn. Tl. Art 19 
quoque 2-5, apicalibus, submarginalibus leviter immersis vel 
solummodo annulo circumdatis, pilis longioribus protectis. 
Epiphytie on mossy trunks, Horn of Negros Mountain, 
alt. 1350 m., No. 10319. 
Elmer says "This is the rarest of all the ferns found," and 
Fronds soft, membranous, dry in texture," but this surely 
depends upon the weather. 
This species is of the group of P. khasayanwm, and is charac- 
terized by the rather sudden contraction at the base of the best 
developed fronds, and the restriction of the sori to the apices of 
the segments; further distinguished from P. khasayanum by 
the fact that the sori do not show on the upper surface, from 
P. stenopteron Bak. by the fact that they are not superficial and 
from P. barathrophyllum Bak. and P. crassifrons Bak. by the 
pubescence of both surfaces. 
Polypodium subfalcatum BI. 
On mossy limbs, rare, alt. 1900 m., No. 9847. 
Mt. Halcon, Mindoro. 
India, Malaya. 
This is a small form, about equally near to the typical 
P. subfalcatum and to P. minutwm Bl. The latter was report- 
ed as collected in the Philippines by Steere, but is not repre- 
sented in my set of his ferns; and I have what seems to be it 
from Mt. Data. 
Polypodium chis Bl. 
Epiphytie in mossy woods, alt. from 1300 m. and upward, 
No. 9822a. 
Common in the Philippines. | 
India, Malaya. 
Polypodium celebicum BL. 
In mossy woods with the preceding. No. 9822. 
Luzon, Mindoro, Mindanao, 
Malaya. 
Polypodium teniduectian BI. 
On mossy limbs in the fog region, alt. 1500 
upward, No. 9887. m. and 
Mt. Apo, Mt. Canlaon, Mt. Halcon, Mt. Pi 
Malaya to Samoa. natubo. 
