28 rOLYPOIHACE.i: of the PHILH'I'INE island.s. 



the lowest stalked, 15 to 20 cm. long, 2 cm. broad, acuminate, entire or 

 nearly so, subcoriaceous, glabrous; veinlets obscure, 8 to 10 on a side; 

 sori close to the main veins, exindusiate. 



Luzon, Cuming; Camarines and Sorsogon, Baranda. 



Java and Borneo ( ? ) . 



(38) N. pteroides (Retz. ) J. Sm. Rhizome hypogaeous, creeping; stipe 

 30 to GO cm. high, slender, almost naked; frond 40 to 80 cm. high, 30 

 to 40 cm. broad; pinnae spreading, 15 to 25 cm. long, 1 to 2 cm. broad, 

 serrate with triangular teeth seldom one-third the depth to the midrib, 

 papyraceo-herbaceous, rachis and veins somewhat hairy beneath; veinlets 

 5 to 8 on each side; sori confined to the margin of the teeth, indusiate. 



Rizal, Loher ; Sorsogon, Baranda; Mindoro, Merrill 984; Culion, Merrill 

 484, 594; Mindanao, Cuming 293; Davao, Copeland 636. 

 India and China to Queensland and Polj^nesia. 



(39) N. unitum R. Br. Stipes 30 to 50 cm. high, brownish, naked; 

 frond 60 cm. or more high, 15 to 20 cm. broad; pinnae 10 to 15 cm. long, 



1 to 2 cm. broad, cut from a third to half way down into spreading, 

 triangular, acute lobes, coriaceous, the lower ones not dwindling down; 

 veinlets 6 to 8 on each side; sori nearly terminal, principally in the 

 lobes, indusium hairy. 



Luzon, Cuming 259. 

 Pantropic. 



(40) N. aoristisorum (Harrington, in Journ. Linn. Soc. 16:30). 

 Rhizome sliort and tliick, with slender, brown scales; stipes clustered, 

 8 to 15 cm. high, slender, gray slightly pubescent above; frond 15 to 25 

 cm. high, 2 to 4 cm. broad, linear-lanceolate, the lower pinnae reflexed; 

 pinnae 20 to 40 pairs, 12 to 16 mm. long, half as broad, elliptical, slightly 

 falcate, obtuse, coarsely crenate, auricled on the upper side, sessile or 

 nearly so, subcoriaceous, pubescent beneath, as is the rachis; veinlets 



2 or 3 on each side, of which but one usually anastomoses with the 

 opposite one of the next lobe; sori not definitely bounded, the sporangia 

 more or less scattered. 



Panay, terrestrial in mountains, 8teere. 



(41) N. proliferum (Presl.). Rhizome stout, creeping; stipes spread- 

 ing, naked, 5 to 20 cm. high; frond 30 to 60 cm. long, 15 to 30 cm. broad, 

 erect or decumbent, often elongate and rooting at the point and branched 

 copiously from the axils; pinnae 10 to 15 cm. long, 1 to 2 cm. broad, 

 broadest at the truncate or cordate base, obtuse, bluntly lobed about 

 2 mm. deep, subcoriaceous, naked or nearly so; veinlets 6 to 10 on a 

 side; sori medial, oval, sometimes confluent, exindusiate. 



Luzon, Cuming 168; Benguet, Loher. 

 Africa to Polynesia. 



(42) N. urophyllum (Wall.) Beddome. Rhizome horizontal, short and 

 stout; stipe 50 to SO cm. high, erect, nearly naked; frond 60 cm. or 

 more high, 30 to 50 cm. broad; pinnae rather few, 20 to 30 cm. long, 

 about 5 cm. broad, acuminate, entire or crenate, sessile, papyraceous, 



