250 ASPLENIUM, § EUniPLAZIUM. 



nerves on each side 2-3, the lowest reaching above the mar- 

 gin of the sinus, lowest anterior sori diplazioicl subcontiguous 

 with the costa extending to the middle of the segments, 

 the rest 1-2 on each costule, involucre gradually passing 

 into the parenchyme." Metten. Asplen. p. 180. — " Diplazium, 

 Fee, Gen. p. 214. D. acuminatum, /. Sin. Cat. Cult. Ferns." 



Ilab. Ceylon, " Gardner, n. 34." 



271. A. (Eudiplazium) Thivaitesii, A. Br. ; caudex long 

 creeping black rooting, stipites scattered 4 inches to a span 

 long and as well as the main rachis woolly with crisped hairs 

 mixed with lanceolate membranaceous scales, fronds a span 

 to a foot long ovato-lanceolate acuminate membranaceous 

 pinnate pinnatifid at the apex, pinnaj li-3 inches long ap- 

 proximate sessile horizontal lanceolate obtuse straight deeply 

 almost to the rachis pinnatifid with short-ol)long obtuse lobes 

 toothed at the apex, veins pinnated simple or forked, sori in 

 two oblique rows in each lobe rather small linear-oblong, 

 involucres pale-brown membranaceous convex eroso-ciliate 

 and diplazioid but far more generally asplenioid, costse and 

 veins above subglandularly and very sparsely hirsute. — A. 

 Braun, Ind. Hort. Berol. 1857- Metten. Asplen. p. 183. Hook. 

 2nd Cent, of Ferns, t. 45. Diplazium, Moore. 



Ilab. Ceylon, Gardner, n. 1343; Thwaites. — A remarkable and well-defined 

 species, in its long, creeping, subterranean, black caudex, and the densely tonientose 

 and paleaceous stipites and main rachises. 



272. A. (Eudiplazium) porrectum, Wall. ; caudex erect or 

 ascending, stipites tufted 6 inches to a foot long subcastaneous, 

 fronds 8-10 inches to \-\\ foot long deltoid-oblong or pyra- 

 midal pinnate, pinnse horizontal numerous 4-6 inches long 

 petiolate or sessile and confluent at the acuminated pinna- 

 tifid apex, from a broad truncated and auricled or generally 

 quite hastate base (having a distinct auricle above and below) 

 linear-lanceolate obtuse or acuminate, lower ones more or 

 less deeply pinnatifid, intermediate ones obtusely dentate, 

 uppermost ones entire at the margins, veins patent pinnated in 

 the auricles the rest once or twice forked, sori linear elongated 

 confined to the superior or basal veinlet and extending its 

 whole length or on the two outer ones, mostly diplazioid, 

 involucres membranaceous when young. — IVall. Cat. n. 204 

 [afterwards, at p. G3, altered to A. multisoratum. Wall., [not 

 224, Wall., which is A. protensum, from Mauritius, and is 



