836 LEAFLETS OF PHILIPPINE BoTANY [Vor. III, Arr. 45 
gustissimam pinnatifidis; segmentis lanceolatis, medio 4 mm. 
latis rhachin versus dilatatis, integris vel crenulatis; soris 
utroque latere segmenti cujusque usque ad 10. 
Tufts in moss-covered ground and shrub-like trees on 
or near the summit of Mt. Calelan, alt. 2600 m., No. 11688. ? 
This plant has of course the ciliate paleae, reddish pu- 
bescence on the rhachis and texture of leaf, which charac- 
terize Prosaptia and the related species of Polypodium. It 
might have been described as a new species in either genus; 
I have preferred to call it Prosaptia making the direction of 
opening the sorus cavity, rather than the strictly marginal 
position of the opening, the critical character. It may not 
be out of the way to observe that the discovery of links 
closing more perfectly the gap, always narrow between 
Prosaptia and Polypodium, does not necessitate combining the 
genera, nor even make their union desirable. 
Prosaptia contigua (Forst.) Presl. 
Epiphytic, Mt. Apo, alt. 1800 m., No. 11688." The forms 
with several sori, and with one on each segment, growing 
together. 
Throughout the archipelago, rather common in the mossy 
forest. 
Malaya, Polynesia. 
POLYPODIUM Linn. 
Polypodium Christii Copel. 
In mossy forest, Mt. Apo, alt. 1800 m., Copeland 1101, 
1520. Unknown elsewhere. 
Polypodium diplosorum Christ. 
In mossy forest, Mt. Apo, alt. 1800 m., Copeland 1008, 
1522. 
Negros, central Luzon. 
Java, Celebes, Borneo. 
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