486 5b. ASPLENIUM. § 3. EU-ASPLENIUM. 



crenate, the base equally cuneate on both sides ; upper pinnae connected by 

 a more or less narrow wing. Texture very coriaceous; veins oblique, often 

 once forked. Sori long, reaching nearly from the midrib to the edge. 

 Sumatra. 



* (32) A. vulcanieum, BL, Rac, Flor. Btz., I, 213; A. heterodon. Melt. 

 (not BL), Hk., Spec. Fil., Ill, 107 ; A. Wightianum, Wall., Hk., 1. c, tab. CLXVII. 



Rhizome creeping or erect, the scales dense, brown, lanceolate. Stipes 

 IB — 25 c.M. long, erect, naked or deciduously scaly towards the base. Fronds 

 30 — 100 c.M. long, 10 — 20 c.M. broad, oblong, with a linear terminal pinna 

 or a proliferous apex and 6 — 12 lateral pinnae on each side. Pinnae erecto- 

 patent, to 15 c.M. long, 1 — 5 c.M. broad, all or only the lower ones on 

 stalks to I'/i c.M. long, the apex acute or acuminate, the edge entire or 

 more or less distinctly crenate to denticulate, the base varying from narrowly 

 to broadly cuneate, equal on both sides, or the upper base sometimes a little 

 broader than the lower and with a tendency to become slightly auricled. 

 Texture coriaceous or subcoriaceous ; rachis naked; veins simple or foi'ked. 

 Sori regular, linear, in 2 opposite rows, reaching from the midrib nearly or 

 Vj-way to the edge. — A variable plant. 



Malaya; Ceylon, South. India. 



(53) A. fuliginosnm, Mh., Hk. Bk., Syn. FU., 203; A. lugubre, Hk., 

 2°'' Cent, of Ferns, tab. III. 



Stipes tufted, very short, densely clothed with blackish, librillpse scales. 

 Fronds IB — 30 c.M. long, B — 7*/, c.M. broad, with 12 — 24 broadly adnate, 

 horizontal, subfalcate pinnae on each side. Pinnae 1 — I'/j c.M. broad, the 

 point acute, the edge slightly toothed, the base a little narrowed on both sides 

 in the lower ones, which are gradually reduced in size. Texture thin; rachis 

 densely fibrillose; veins usually once forked. Sori in 2 regular rows near the 

 point of the pinnae. 



Borneo. 



(34) A., horizontale, Uk., Ann. of Bot., VIII, 125. 



Stipes 20—25 c.M. long, slender, green, clothed with minute scales, the 

 lower of which are larger, dense, lanceolate,- acuminate, pale-brown. Fronds 

 oblong, + 30 c.M. long, caudate, pinnate. Pinnae + 9, lanceolate, 7— 15 c.M. 

 long, 2Vi— 3 c.M. broad, acuminate, obscurely crenate, horizontal, sessile, the 

 lowest the largest, cordate at the base, auricled on the upper side. Texture 



