Ferns of British India and Ceylon. 
145 
numerous, approximate, horizontal sessile, oblong obtuse, upper half, 
obscurely serrated, cuneate at the base, superior base truncated sub- 
auriculate, infeiior margin cut off as it were by a straight line ; 
terminal pinna elongated, pinnatifid below ; costa and veins sunk, 
obsolete ; sori 2-6, oblong oblique, occupying the disc of the frond 
between the middle and t]ie apex ; involucre firm, membranaceous ; 
rachis ebony-black, terete, rigid, sparsely setose. Hook. Sp. Fil. iii. 
143. Syn. Fil. p. 198. Bedd. F. B. I. t. 288. 
Penang. 
S.AsPLENiUM SEPTENTRIONALE. (Z///. 2inder AcrosticJiuni). Small 
caudex creeping, densely radiculose scarcely paleaceous ; stipes 
numerous, tufted, 3-6 inches high, erect, flexuose, green brown at the 
base ; fronds 1-2 inches long, coriaceous, glabrous, pinnated ; pinnae 
1-1 inch long; long-petioled, linear or linear-lanceolate, subungui- 
culate, often very acute or acuminate, rarely solitary, generally 2-3, 
alternate entire or forked ; lateral segments small subulate, rarely 
laciniated (2-3 acuminate segments) ; veins forked parallel ; sori very 
long ; involucres also much elongated, attached near the margin. 
Hook. Sp. Fil. iii. 174. Syn. Fil. p. 198. Bedd. F. B. I. t. 60. 
Acrostichum septentrionale, Liiin. Sp. Fl. 1524. Acropteris, Link. 
Northern India, Kashmir, 9,000-12,000 feet elevation; Gur- 
whal 8,000 feet. 
(Also in Arctic and Alpine Europe, Asia, and America.) 
9. AsPLENiUM LONGissiMUM. (Blume) Rhizome short-creep- 
ing; stipes tufted 3-12 inches long, strong erect, blackish, nearly 
naked ; fronds 2-8 feet long, linear or lanceolate elongate, prohferous 
and rooting at the apex ; pinnse horizontal, very numerous, 2-4^- 
inches long J-f inch broad, acuminate, the two sides nearly equal, 
with a distinct central midrib, the edge slightly toothed, the base 
on both sides often auricled ; texture herbaceous ; rachis dark- 
coloured strong, slightly scaly ; veins forked oblique ; sori numerous 
in two regular rows on each side the midribs, and reaching nearly to 
the edge. Blume, En. Pla7it. Jav. Fil. 178. Hook. Syn. Fil. 199. 
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