﻿250 2S. ASPIDIUJI. § 2. SAGENIA. 



lowest ones stalked, cuueately rounded at the base, decurrent upon the petiole, 

 unequally 2-pai'tite. Texture membranaceous; surfaces naked; venation as in 

 Drynaria; primary areolae in serveral rows on each side of the costae. Sori 

 in 2 rows between the main veins and approximate to them, 2 in each 

 primary areola; indusium with a short sinus. 

 Philippines. 



(35) A. iiuciiiiii, niels, in Schum. & Laut, Flor. deut. Sch. geb., 

 116; Nephrodium nudum, Bk., Journ. of Bot., XVII, 41. 



Stipes ± 60 c.M. long, pale-brown, naked Fronds oblong-deltoid, 45 — 60 

 c.M. long, 15 — 50 c.M. broad. Terminal pinna lanceolate, 15 — 30 c.M. long, 

 2 — 2 '/a c.M. broad, much acuminate, the edge entire, the base gradually 

 narrowed; below this 9-- 11 distant, sessile, similar but smaller pinnae, the 

 lowest stalked, the 2 — 4 lower hi- or trifurcate from the base. Texture mem- 

 branaceous; rachis and surfaces naked; main veins erecto-palent, distinct to 

 the edge; areolae copious, small, irregular, with free veinlets. Sori in regular 

 rows near the main veins; indusium naked, persistent. 



Borneo; Bismarck Islands. 



(36) A. lUultficaaBdatiiiii, Wall., Bedd., Haudb. Ind. Ferns, 

 222; Nephrodium mullicaudalum, Clarke, Trans. Linn. Soc, Bot., 2*^ Series, 1, 

 tab. LXXVII; Sagenia Grifplhii, Bedd., Ferns Br. I., II, tab. GCCXXXVII. 



Stipes 30 — 90 c.M. long, brownish, often densely clothed (nearly its 

 whole length) with linear-subulate, brown, persistent scales. Fronds 90 — 120 

 c.M. long, pinnate. Terminal pinna large, deeply pinnatitid, the lobes lan- 

 ceolate-acuminate; below this several lateral pinnae on each side, the lowest 

 deltoid, + 30 c.M. or more long and nearly as broad, deeply pinuatilid 

 above and pinnate below. Texture firm, herbaceous; rachises rusty beneath; 

 main veins distinct to the edge; areolae with copious free veinlets. Sori 

 rather large, in 2 rows between the main veins or more numerous and scat- 

 tered, generally terminal on free veinlets; indusium reniform or peltate. 



Malacca; North. India, Biirmah. 



(37) A. iiielaiiorachiis, C. Chr., Ind. Fil. ; Nephrodium melano- 

 rachis, Bk., Journ. of Bot., XXVI, 325. 



Stipes black, ± 45 c.M. long, scaly on the lower half, but more densely 

 at the base, the scales linear, spreading, brown. Fronds oblong-deltoid, 2-pin- 

 natifid, 45 — 60 c.M. long, ± 50 c.M. broad. Pinnae ± 5 on each side, the 

 terminal one pinnalifid, the lowest much tlie largest, deltoid, produced on the 



