120 POLYPODIACE.ID OF THE THILIPriNE ISLANDS. 



(7) P. caespitosum (Blume) Mett. Stipes clustered on a very short 

 chaflfy rhizome, 2 to 4 cm. high, wiry, weak, clothed with short weak hairs; 

 fronds 8 to 15 cm. long, rather over one-twentieth as broad at the middle, 

 gradually narrowed toward both ends, entire, subcoriaceous, usually quite 

 glabrous; veins as a rule twice forked, inconspicuous; sori somewhat 

 immersed, oblong, oblique to the costa. 



Mount Apo, 1,800 m. Gopeland 1008a, 1009, 1010. 



Java. 



A very variable species, especially in the texture and venation, and 

 the shape and direction of the sori ; a form occurs rarely with two 

 irregular rows of sori on each side of the costa. 



(8) P. fasciatum Mett. Rhizome strong, wide-creeping, clothed with 

 broad gray scales; stipes 2 to 5 cm. high, rigid, deciduously ciliate, frond 30 

 cm. or more long, 1 cm. broad narrowed gradually toward both ends, entire, 

 coriaceous, glabrous; costa prominent, veins immersed, forked; sori super- 

 ficial, oblong, arranged end to end close to the costa. 



Mount Data 2,250 m., holier ; a dwarf form, scarcely 7 mm. high, with 

 stipe almost naked. 

 Malaya. 



(9) P. sessilifolium Hooker. Fronds tufted, 7 to 22 cm. long, 4 to 6 

 mm. broad, narrowed gradvially below the point, bluntish, entire or slightly 

 undulate, subcoriaceous, glabrous; veins forked; sori oblong, placed end 

 to end close to the costa. 



Luzon, Cuming 382. 

 Malaya. 



(10) P. pleiosoroides Copeland. Rhizome short, creeping, its scales 

 broadly lanceolate, acuminate, stramineous; stipe 2 to 4 cm. high, slender, 

 densely beset with very short stramineous hairs; frond 10 to 15 cm. high, 

 one-tenth as broad, lanceolate, contracted to both ends, coriaceous, glabrous, 

 margin sinuate, especially toward the base, bearing a few siiort hairs; 

 veins immersed, inconspicuous, about 4 times forked; sori large, round, 

 superficial, in 1 to 3 irregular lines or altogether scattered. 



Mount Apo, 1,800 m., Copeland 1011, epiphytic. 



(11) P. loherianum Christ, Bull. Herb. Boiss. 6(1898) :197. Rhizome 

 short, with purplish hairs; stipes clustered, 1 to 3 cm. high, naked; frond 

 ligulate-lanceolate, 15 cm. high, 7 to 10 mm. broad, rather obtuse, gradually 

 contracted to the base, crenate-dentate, the teeth of irregular width, 3 

 mm. or less deep; nervature inconspicuous, veins pinnate in the teeth; sori 

 dorsal on the lowest acropetal veinlets, scarcely immersed, round or oval, 

 in a row rather nearer the costa than the margin, rarely a second imperfect 

 row present; textvire coriaceous. 



Mount Data, 2,250 m., Loher. 



(12) P. cucullatum Nees. Rhizome short, scaly; fronds very densely 

 tufted, nearly sessile, 7 to 15 cm. long, about 7 mm. broad, but little 

 contracted toward the ends, flaccid, glabrous or nearly so, pinnatifid to 

 the winged rachis into numerous obtuse segments 1.5 mm. broad, separated 

 by less than their o-wn breadth, each with a single conspicuous vein; 



