POLYPODIES POL YPODIUM. 121 



sorus one in each segment, large, superficial, the lower half of the segment 

 folded over it until maturity. 



Luzon, Cuming 206, Steere; Mount Mariveles, Copeland 216; Davao, 

 Warburg 14188, Copeland 1005, 1061. 



Ceylon to Samoa. 



(13) P. gracillimum Copeland. Rhizome creeping or suberect, clothed 

 with minute brown lanceolate scales; fronds in dense clusters, almost 

 sessile, the larger ones 12 cm. long, 4 mm. broad, flaccid, glabrous through- 

 out, pinnatifid almost to the rachis into numerous fine, acute, remote, 

 decurrent, erecto-patent, alternate segments; one vein and one sorus to 

 each segment, the lower half of the lamina folded over the sorus. 



Mount Apo, 1,800 m., epiphytic on mossy tree trunks, Copeland 1007. 



(14) P. solidum Mett. Rhizome short, erect, clothed with lanceolate 

 ferruginous scales; stipes clustered, glabrous, to 2 cm. high; frond 8 to 

 15 cm. high, 1 to 2 cm. broad, narrowed from the middle toward both 

 ends, acute, pinnatifid down very nearly to the ebeneous rachis into erecto- 

 patent sharply serrate or incised acute segments, coriaceous, glabrous or 

 the lower surface glaucous; main veins of the segments conspicuous, 

 veinlets invisible, simple; sori large, round, costal. A small, relatively 

 narrow form, with short, broadly triangular, almost entire segments is 

 Grammitis denticulata Blume. 



Mount Apo, 1,800 m., Copeland 1102, 1103. 

 Java. 



(15) P. inconspicuum Blume. Rhizome short-creeping, clothed with 

 linear scales; fronds sessile or nearly so, 10 to 15 cm. high, 1 cm. broad, 

 contracted toward the ends, pinnate; pinnae erecto-patent, entire, coriace- 

 ous, glabrous or glabrescent; veinlets immersed, simple; sori costal. 



Davao, Warburg 14190. 

 Java. 



(16) P. mi nut urn Blume. Stipes tufted, 4 to 7 cm. high, clothed with 

 soft yellowish hairs; frond 10 to 15 cm. high, 2 cm. broad, narrowed toward 

 the ends, pinnate; pinna close, erecto-patent, obtuse, crenate, papyraceo- 

 herbaceous, clothed on both sides with soft yellowish hairs; veinlets simple, 

 very short; sori costal, 1 to 3 on each side. 



Luzon, Steere. 

 Ceylon, Malaya. 



(17) P. macrum Copeland. Rhizome short, erect, densely covered with 

 roots, bases of dead stipes and brown scales; fronds crowded, on stipes 1 to 

 2.5 cm. long, the larger ones 25 cm. high, one-tenth as broad, narrowed 

 toward both ends, curved, lax, pinnate; pinnae 1 to 2 mm. broad, rather 

 acute, sinuate, decurrent, the upper ones confluent, the lower remote, sub- 

 coriaceous, glabrous; veinlets simule; sori superficial, somewhat elongate, 

 nearer the margin than the costa. 



Mount Apo, 1,650 m., epiphytic on mossy trunks, Copeland 1016. 



(18) P. subfalcatum Blume. Rhizome short, erect; stipes 1 to 2 cm. 

 high, hairy; fronds about 15 cm. high, 2 to 3.5 cm. broad, narrowed toward 



