226 38. ASPLENIUM, ATHYRIUM. 



Hab. Scinde, Peninsular India, Ceylon. Habit of a small form of Filix-fxndna, 

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



183. A. (Athyr.) drepanophyllum, Baker ; st. tufted, stramineous, 2-3 in., 

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

 ceolate, |-1 ft. 1., 1^-2 in. br., bipinnatifid ; rachis stramineous, naked, winged 

 in upper half; pinnae 15-20-jugate, lanceolate, blunt, sessile, -J-f in. br., lower 

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

 produced, the base on lower side cuneate-truncate ; 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. 8. I. 

 t. 161. 



Hab. Indian Peninsula. 



184. A. (Athyr.) ihelypteroides, Michx. ; st. 1 ft. 1., erect, polished, straw- 

 coloured ; fr. 1-2 ft. 1., 6-12 in. br., lanceolate, with numerous spreading pinnae, 

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

 numerous nearly entire elliptical spreading pinnl. texture herbaceous ; rachis 

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

 the midrib to the edge, slightly curved, the lower ones often double. Hk. Sp. 3. 

 p. 229. 



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

 Easily distinguished by its long sori in very regular rows. 



186. A. (Athyr.) decurtatum, 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 pinnae 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 surfaces 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, Lindberg, 620. Very like the preceding in habit and cutting, but the 

 sori much shorter. 



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

 greyish ; fr. 3 ft. 1., 1 ft. br., lanceolate, with numerous pinnce on each side, the 

 lower ones 6-8 in.l., 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 ; veins conspicuous, once pinnate 

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

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



Hab. Oahu. 



1B7. A. (Athyr.) Skinneri, Baker ; st. 6-9 in. 1., erect, greyish, slightly scaly 

 below ; fr. 9-15 in. 1., 6-9 in. br., ovate-lanceolate, with numerous pinnce on each 

 side, the lower ones 1-1^ in. apart, 3-5 in. 1., 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. 



