POLYPODIACEAB 45 
Illustrative specimen from Taytay, Palawan, May, 1913 (Mer- 
rill: Species Blancoanae No. 366). 
CEROPTERIS Link 
Acrostichum tripinnatum Blanco FI. Filip. (1837) 826 (tripinatwm) (sp. 
nov.) ; ed. 2 (1845) 571; ed. 3, 3 (1879) 241=? CEROPTERIS CALO- 
MELANOS Und. 
Fernandez-Villar reduced this to Acrostichum apiifolium 
Hook.=Polybotrya apiifolia J. Sm.—Psomiocarpa apitfolia Presl, 
to which Blanco’s description does not at all apply. The descrip- 
tion is very short and imperfect, a fern about three feet high 
with smooth stipes, tripinnate fronds, the pinnules very numer- 
ous, about 3 lines long, oval, tapering at the base, etc., the 
sori covering the entire lower surface. Blanco’s specimens were 
from Malinta, near Manila. The only fern that conforms at 
all to this description that occurs anywhere within many miles 
of Manila, is Ceropteris calomelanos Und., now locally abundant 
in the region surrounding the City of Manila. The only objec- 
tion to this reduction of Acrostichum tripinnatum Blanco lies 
in the fact that this is an introduced species in the Philippines, 
and there is no definite evidence that it occurred here at the 
time Blanco wrote his Flora de Filipinas. 
Illustrative specimen from San Pedro Macati, Rizal Province, 
Luzon, September, 1916 (Merrill: Species Blancoanae No. 1000). 
ONYCHIUM Kaulfuss 
Caenopteris quadripinnata Blanco FI. Filip. (1837) 833 (sp. nov.); ed. 2 
(1845) 576; ed. 3, 3 (1879) 252 (Coenopteris) —ONYCHIUM SILICU- 
LOSUM (Desv.) C. Chr. 
This was correctly reduced by Fernandez-Villar to Onychium 
auratum Kaulf.—O. siliculosum C. Chr. In describing it as “de 
la altura de una vara” Blanco certainly erred, as the fern never 
reaches this height; otherwise his description applies perfectly 
to Onychium siliculosum C. Chr. The species is widely dis- 
tributed in the Philippines at low and medium altitudes. 
Illustrative specimen from Montalban, Rizal Province, Luzon, 
December, 1914 (Merrill: Species Blancoanae No. 748). 
ADIANTUM Linnaeus 
Adiantum lyratum Blanco FI. Filip. (1837) 832 (sp. nov.); ed. 2 (1845) 
575; ed. 3, 3 (1879) 250=ADIANTUM CAUDATUM Linn. 
There is no doubt whatever as to the identity of Blanco’s 
species with Adiantum caudatum Linn., which is very common 
in the country about Manila. Blanco’s specimens were from 
Mandaloyan, near Manila. 
