226 38. ASPLENIUM, §§§§ ATHYRIUM. 



Hab. Soinde, Peninsular India, Ceylon. — Habit of a small form of Filix-famina, 

 but with more aausage-like sori and a fibrillose stem. 



183. A. (Athyr.) 'drepanophyUum, Baker ; St. tufted, stramineous, 2-3 in., 

 slightly scaly below ; basal scales dense, linear- subulate, ferruginous ; fr. lan- 

 ceolate, J-1 ft. 1., 1^-2 in. br., bipinnatifid ; racMs stramineous, naked, winged 

 in upper lialf ; pinnce 15-20-jugate, lanceolate, blunt, sessile, ^-f in. br., lower 

 distant and much reduced, pinnatifid into short blunt lobes, the lowest anterior 

 produced, the base on lower side cuneate-trunoate ; texture moderately firm ; 

 surfaces green, naked ; veins pinnate in lower lobes ; sori oblong oblique, regu- 

 larly uniserial near midrib of pinnse.— Athyrium falcatum, Bedd, F, S, I. 

 t. 161. 



Hab. Indian Peninsula, 



184. A. (Athyr.) thelypteroides, Michx. ; si. 1 ft. 1., erect, polished, straw- 

 coloured ; jr. 1-2 ft. 1., 6-12 in. br., lanceolate, with numerous spreading j»2»wcb, 

 the lower ones 4-6 in. 1., 1 in. br., cut dow^n to a broadly-winged rachis into 

 numerous nearly entire elliptical spreading pinnl. ; textwe herbaceous ; rachis 

 sometimes slightly hairy ; sori in close regular rows reaching nearly from 

 the midrib to the e"dge, slightly curved, the lower ones "often double. — Hk. Sp. 3. 

 p. 229. 



Hab. Canada, United States, Amur-land, Himalayas (ascending to 10,000 ft.), Penang. 

 — Easily distinguished by its long sori in very regular rows. 



185. A. (Athyr.) decurtatwm. Link ; st. 1 ft. or more 1., erect, straw-coloured 

 above, deciduously scaly below ; fr. 2-3 ft. 1., 9-12 in. br., with very numerous 

 close-placed spreading pinnce 4-6 in. 1., 1 in. br., cut down nearly to the rachis 

 throughout into blunt entire lobes with parallel sides, 2 lin. br. ; texture 

 herbaceous ; both swrfaces pubescent ; veinlets simple, regularly pinnated ; sori 

 oblong, falling' short of both edge and midrib, the lower ones curved. — Hk. Sp. 3. 

 p. 226. 



Hab. Brazil, Lmdberg, 620. — ^Very like the preceding in habit and cutting, but the 

 sori much shorter. 



186. A. (Athyr.) depwrioides. Brack. ; st. 12-18-in. 1., firm, erect, smooth, 

 greyish; fr. 3 ft. 1., 1 ft. br., lanceolate, with numerous ^mw(B on each side, the 

 lower ones 6-8 in. 1., 1 in. br., cut down nearly to the rachis throughout into 

 rather distant oblong-obtuse pinnl., which are slightly inciso-crenate ; texture 

 subcoriaceous ; rachis firm, naked, proliferous ; vdns conspicuous, once pinnate 

 in each pinnl., the veinlets simple, distant ; sori oblong, one to each veinlet 

 touching the edge, the lower ones very slightly curved. — BracJc. p. 172. 



Hab. Oahu. 



187. A. (Ath3rr.) Skirmeri, Baker ; st. 6-9 in. 1., erect, greyish, slightly scaly 

 below ; fr. 9-16 in. 1., 6-9 in. br., ovate-lanceolate, with numerous pinnce on each 

 side, the lower ones 1-1| in. apart, 3-6 in. I., 1 in. br., cut in the upper part 

 halfway down and below nearly to the rachis into oblong-rhomboidal blunt 

 inciso-crenate pinnl., often J in. br. ; texture herbaceous ; rachis naked, slender ; 

 veinlets of the pinnl. sometimes forked ; sori small, linear-oblong, 2 to 12 to a 

 pinnl. — Athyrium, Moore. 



Hab. Guatemala. — Perhaps this should be joined with the next, but the pinnae and 

 pinnules are much less deeply cut, and the latter so broad that they are slightly 

 imbricated. 



