24 POLYPODIACEJE OF THE PHILIPPINE ISLANDS. 



almost to the midrib into slightly toothed lobes 5 mm. broad, subcoriaceous, 

 glabrous, the lowest stalked, not much reduced; veinlets 8 to 12, some- 

 times more than once forked; sori subterminal on the branches, as near the 

 margin as the midrib, indusium small but evident. Near N. crassifolium. 



Luzon, Cuming 13, 14, 154; Sorsogon and Catanduanes, Baranda; Bohol, 

 Cuming 354; Davao, Copeland 669, 928, 953, small forms; Zambo-anga, 

 Copeland 736. 



India, Malacca. 



(18) N. erythrosorum Hooker. Stipes tufted, 15 to 25 cm. high, more 

 or less densely clothed with long lanceolate and linear scales; frond 

 30 to 50 cm. high, 20 to 30 cm. broad, ovate-lanceolate; pinnse lanceolate, 

 the lowest the largest, 10 to 15 cm. long, cut quite down to the rachis 

 below into oblong-obtuse pinnules which are slightly, sometimes spinosely, 

 toothed, herbaceous but firm, glabrous; sori in rows of 6 to 9, near the 

 veins; indusium 1 mm. broad, flat, bright red when young. 



Japan and China. 

 Benguet, Loher. 



(19) N. Preslii Baker. Stipes 15 to 25 cm. high, slender, deciduously 

 fibrillose; frond 15 to 25 cm. high, 10 to 15 cm. broad, lanceolate-deltoid; 

 upper pinnse lanceolate, close; lowest pair deltoid, the upper pinnules 

 4 mm. broad, obtuse, entire, the lower ones pinnatifid with similar lobes 

 and broad uncut center, subcoriaceous, glabrous; rachis fibrillose; sori 

 about 6 to the lower lobes, dorsal on the veins, nearer the vein than the 

 margin. 



Luzon, Cuming 255. 



(20) N. flaccidum Hooker. Stipes tufted, 30 cm. or more high, slender, 

 stramineous, naked; frond 30 to 50 cm. long, 15 to 20 cm. broad; pinnae 

 7 to 10 cm. long, 2 to 3 cm. broad, cut down to a rachis with a narrow, 

 distinct wing into oblong lobes 4 mm. broad, cut about half way down in 

 turn, herbaceous, villous beneath, like the rachis; lower pinna? distant, 

 shorter than the others and deflexed; veinlets forked, or in the lower 

 lobes subpinnate; sori about midway between the vein and margin. 



Benguet, Lo her. 

 Himalayas to Java. 



(21) N. sparsum Don. Stipes tufted, 15 to 30 cm. high, scaly near 

 the base, stramineous and glossy above; frond 30 to 60 cm. high, 20 to 30 

 cm. broad, ovate-lanceolate; lowest pinnae the largest, 10 to 15 cm. long, 

 3 to 5 cm. broad; lowest pinnule sometimes compound, the others lan- 

 ceolate, unequal sided, pinnatifid with oblong, obtuse lobes, herbaceous 

 but firm, glabrous, pale green; sori usually one to each lobe, near the 

 vein; indusium flat, naked, 2 mm. broad. 



Benguet, Loher, Topping 282. 

 Mauritius to Malaya and China. 



(22) N. crenatum (Forsk.) Baker. Stipes 25 to 50 cm. high, stramin- 

 eous, glossy, densely clothed at the base with a tuft of lanceolate, bright 

 brown scales; frond 20 to 40 cm. high, deltoid; lowest pinnse much the 

 largest, deltoid, 15 to 25 cm. long, 6 to 10 cm. broad; pinnules lanceolate, 



