138 COPEI^AND. 
Polypodium subfalcatum Bl. 
With the preceding (No. 5972). 
India, ^falaya. 
These specimens are very small, but otlier\vi:se agree perfectly with Bhime's 
description. The most similar fern hitherto known from the Philippines is 
P, macrumj which is more slender, more glabrous, repand instead of toothed, 
and has the sori decidedly farther from the costa. 
Polypodium subfalcatum Bl,, yar. semlintegrum Copel. n. var. 
, Forma nana alpina a typo pinnis pins recnrvis margine basicopicia 
pinnarum Integra diversa. 
Ad arbores mnscosos, 1,000 ni. s. m. (No. 5971). 
This is very distinct in aspect, well marked by the margins of the pinnrej 
the usually sterile basiscopic half being entire, while the acroscopic half is 
crenulate- toothed ; but the material is too scant to warrant the description, as 
a distinct species, of a plant whose affinity is so clear and close. The longest 
fronds measure less than 10 cm. 
Polypodium erythrotrichum Copel. 
On mossy trees at 2,400 m. alt. (No. 5970).- 
Already known from Mount Apo and Mount Data. Very near P. venulosum Bl. 
Polypodium obliquatum Bl. 
On ledges in the ridge forest at 450 m. alt. (No. 5969). 
In the Philippines this is the commonest fern in its group. 
India, Malaya. 
r 
Polypodium celebicum Bl. 
On mossy trees at 1,800 m. alt, (No. 5975). 
Not hitlierto kno\\n from north of Mindanao. 
Malaya. 
Polypodium decrescens Christ. 
Terrestrial on ridges in the mossy forest at 2,200 m. alt. (No. 5974). 
Previously known only from the type locality in Celebes and from Mount 
Data, Luzon. Related to P. cclehicum. 
Polypodium halconense Copel. n. sp. (PI. II, Fig. B.) 
Ehizoniate ad terram repcnte, lo mm. erasso, paleis griseo-fuligineis 
lanceolatis 2 mm. longis vestito; stipitibus inter se proximis, ca. 5 em. 
altis, rhacliibnsqiie pilis rectis badiis 0.5-1 mm. longis vestitis; fronde 
20 em. alta, 45 mm. lata^ ntrinqne abrnpte acuminata, pinnata; pinnis 
rectis vel recurviSj deciirrcntibus ncc nisi suprcmis confluentibns 25 mm. 
longis, 3.5 mm. latis, obtnsis, ^ vel | ad costani in denies divergentes 
3 mm. inter se remotos ineisis, infimis in anriculas abrupte diminutis 
coriaceo-papyraceis, infra pallidis, ad costas apicesqne dentium setiferis, 
alitor glabris; Ycniilis simplicibiis, occultis; soris ad baseos venularum 
superficialibiis pleummque oppositis et trans costam conflnentibus. 
In silvis muscosis, 2,300 m. s. m. (No. 5976). 
A relative of P. solidum as shown by the paleae, color, texture and form, but 
much larger and in all respects more delicate. 
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