Ocronzn 30, 1908] PTERIDOPHYTES OF THE Horn or NEGROS 411 
Polypodium papillosum Bl. 
Alt. 750 m., No. 9867. 
Luzon, Mindoro, Mindanao. 
Malaya. 
Polypodium subauriculatum Bl. 
Terrestrial in thickets, alt. 1100 m., No. 10352. 
Throughout the Philippines. 
Malaya to Samoa. 
"Stipe with two fine greenish lateral streaks." Two forms 
of distinet appearance are found under this number. 
Polypodium accedens Bl. 
Alt. 1200 m., No. 9721. ‘‘Manaog.’’ 
Common in the Philippines. 
Malaya and Polynesia. 
Polypodium nummularium Mett. 
On sides of and beneath mossy branches, alt. 1200 m., 
No. 9967. ''Cabcabung."' 
Mts. of La Laguna Province, and Mt. Halcon. 
Polypodium lagunense Christ. 
No. 10082. 
Mt. Maquiling, Mt. Halcon, Mt. Silay. 
The affinity of this and the preceding species is discuss- 
ed in my paper on the ferns of Halcon, Philip. Journ. 
Sci. 2 C (1907) 140. Their discovery together here is very 
interesting. 
Polypodium revolutum C. Chr. 
Alt. 1200 m., No. 9798. 
Luzon, Palawan, Mindanao. 
Malaya to New Caledonia. 
The choice of the proper name for this plant is no simple 
matter. It is, indeed, without doubt, ''Polypodiwm revolutum 
C. Chr. Index 331, 1905; 559, 1906.—Malesia, Ins. Philip. 
N. Caledonia.—Drynaria J. Sm. 1841 (nomen); Grammitis 
longifolia Bl. Enum. 119, 1828." This is quoted from Christ- 
ensen’s Index, p. 559. As I construe it, Christensen found 
this plant without any name valid in the genus, Polypodium, 
in which he placed it. If the name is published on p. 331, 
this is clear, for there is no indication that the name rev- 
