25. ASPimUM. § 2. SAGENIA. 245 



Rhizome suberect. Stipes sub tufted, 10—20 c.M. long, slender. Rachis, 

 main veins (and partially also the veins) blackish. Fronds + 10—20 c.M. 

 long, 10—15 c.M. broad, ternate. Terminal division long-stalked, cuneate or 

 subcordate, long-acuminate, 3-lobed, the lobes produced, with the margin 

 broadly lobato-dentate, lateral divisions falcate, short-stalked, lobed, the lowest 

 lobes on the lower side much produced. Texture herbaceous; surfaces naked; 

 veins fine but conspicuous, reaching the margin; areolae with free vein- 

 lets. Sori central in the lobes, or scattered, deciduous, minute; indusium 

 fugacious. 



New Guinea. 



A. inelanoeaulon, JBI., Copel, Polypod. Philipp., 57; 

 Sagenia melanocaulon, Moore, Rac, Flor. Btz., I, 195; Nephrodiiim melanocaulon, 

 Bk., Ilk. Bk., Syn. Fil., 296; Tectaria melanocaulon, Copel., Philipp. Journ., 

 II, 416. 



Rhizome erect or ascending, clothed with black-brown, lanceolate scales 

 to 10 m.M. long. Stipes 30 — 50 c.M. long, ebeneous, glossy, scaly at the 

 base. Fronds 30 — 90 c.M. long, 15 — 50 c.M. broad, ovate- or lanceolate- 

 deltoid, with a large, deeply pinnatifid terminal pinna and 1 — 4 lateral ones 

 on each side, the highest ones entire or lobed, the central ones mostly deeply 

 pinnatifid with oblong, acuminate lobes, the lowest stalked, 8 — 30 c.M. long, 

 (to 7 — 15 c.M. broad, often again pinnate at the base. Texture herbaceo- 

 papyraceous; rachises ebeneous, glossy, naked or the upper side pubescent or 

 glandular; both surfaces naked; main veins reaching the edge; areolae nume- 

 rous, fine, with free veinlets. Sori numerous, minute; indusium small, fim- 

 briate, fugacious. 



Malaya; East. China, Tonkin. 



* (23) A. irrif^uum, a. Sm., Copel., Polypod. Philipp., 38; Nephro- 

 dium irriguum, Bk., Hk. Bk., Syn. Fil., 297 ; Tectaria irrigua, Copel, Philipp. 

 Journ., II, 413, p. p. 



Stipes tufted, 10—15 c.M. long, greyish, finely villose. Fronds 15—30 

 .c.M. long, 10—20 c.M. broad, subdeltoid, with a large, oblong, terminal pinna 

 with a pair of deep, lanceolate lobes at the base; below this 1—2 pairs of 

 slightly sinuate lateral pinnae, the lowest forked at the base. Texture papy- 

 raceo-herbaceous ; main veins flexuose ; areolae fine, copious, with free veinlets. 

 S*)ri small, often confluent; indusium small, fugacious. 



Philippines, Amboyna. 



