ASPIIHE^E NEPHRODIUM, 21 



4. Lower pinnae abruptly reduced to auri- 

 cles (57) N. hispidulum 



4. Lower pinnee not abruptly reduced to 

 auricles. 



5. Stipe black flbrillose, later rough.. (58) N. ferox 

 5. Stipe naked or villous. 



6. Frond about 40 cm. high, 



sori medial (59) N. parasiticum 



6. Frond about 1 m. high, sori 



close to veins (60) N. truncatum 



(1) N. hirtipes (Bl.) Hooker. Stipes tufted, 30 cm. or more high, 

 densely clothed with long, blackish, fibrillose scales; frond 60 to 100 

 cm. high, 20 to 40 cm. broad; pinnae 10 to 20 cm. long, 2 to 3 cm. broad, 

 cleft about one-third of the way to the midrib into obtuse lobes, herbaceous, 

 glabrous, the lower ones not reduced; rachis fibrillose like the stipe; 

 veinlets 4 or 5 on each side; sori medial, indusium sometimes wanting. 



Benguet and Arayat, Loher. 

 India and Malaya. 



(2) N. distans (Don) Diels. Rhizome more or less creeping; stipes 

 30 to 45 cm. high, slender, glossy, stramineous or chestnut; frond 40 to 

 100 cm. high, 20 to 30 cm. or more broad; lowest pinnae rather the largest, 

 15 to 20 cm. long, 4 cm. broad, cut down nearly or quite to the rachis 

 into deeply pinnatifid pinnules 6 mm. broad, with obtuse or acute, toothed 

 or subentire lobes, herbaceous, slightly pubescent beneath; rachis naked; 

 veinlets slightly pinnate in the lower lobes, pellucid ; sori scattered, copious, 

 exindusiate. 



Benguet, Loher. 

 India to Celebes. 



(3) N. grammitoides (Christ, Bull. Herb. Boiss. 6:193). Rhizome 

 short creeping, scaly; stipes weak, 3 to 4 cm. high, stramineous, clothed, 

 like the entire plant, with short, stiff, whitish hairs; frond 5 to 7 cm. 

 long, 15 to 20 mm. broad, caudate-attenuate, broadest at the base, bipin- 

 natifid; free pinnae about 6 pairs, remote, alternate, sessile, triangular- 

 deltoid, acuminate, incised below to the costa into acute, triangular, 

 crenate lobes 4 mm. long; veins pinnate in the lobes; sori minute, round, 



3 or 4 on each side of the vein; indusium minute and pilose, or wanting. 

 Mount Mariveles, 1,400 m., Loher. 



(4) N. crassifolium Hooker. Stipes tufted, 30 cm. or more high, 

 glossy, slightly villous ; frond 40 to 60 cm. high, 20 to 30 cm. broad ; 

 pinnae 10 to 15 cm. long, 2 to 4 cm. broad, their lobes obtuse, falcate, 



4 to 6 mm. broad, reaching from half to two-thirds down to the midrib, 

 subcoriaceous, glossy but the midribs finely villous, lower pinnae distinctly 

 stalked; veinlets 10 to 12 on each side, with the sori nearer the midrib 

 than the margin; indusium small, evanescent. 



Philippines, Loher; Negros, Copeland 93. 

 Malaya. 



(5) N. Fauriei (Christ) var. elatius (Christ) probably belongs here. 

 It is a small fern, with very narrow fronds, and consequently short pinnae, 



