38. ASPLEXIUM. §§§§ ATIIYRITTM. 



1^25 



2-0 to a spf^m., oblong, iisually nearly straight, often double.— A. crenulatum 

 Fries. Ilk. aS>. 3. p. 226. 



Hab. Sca^ndinavia by way of Siberia to Japan. 



17n. A. (Athyr.) spinuhsum, Baker; st. G-12 in. 1., sciittered, firm, erect, 

 naked, straw-coloured, more or less clothed throughout with lanceolate pale- 

 brown scales ; Jr. 9-12 in. each way, deltoid, tri- or quadripinnatifid, with 9-12 

 pinnte on each side, the lowest much the largest, 6-9 in. 1., 2\-^ in. br., ovate- 

 lanceolate ; pinnl. lanceolate, cut down to the rachis on each side into 6-9 

 oblong-rhoml)oidal mucronate scgm., 2 lin. 1., 1 lin. br., which are sharply 

 toothed; texture herbaceous; rachis firm, naked, or nearly so; sori 2-10 to 

 a segm., usually round and the invol. ovate, l)nt occasionally oblong, and the 

 invol. slightly curved. — Cystopteris spinulosa, Max. Fl. Anmr. jj. 340. 



Hab. Amur-land, Maximomcz; Manchuria, Wil/ord, 1163 ; Korea, Wilford, 903. 



179. A. (Athyr.) siiUriangulare, Ilk. MSS. ; st. 6-12 in. 1., firm, erect, naked, 

 clothed towards the base with lanceolate pale-brown scales ; fr. 1 ft. each way, 

 deltoid, quadripinnatifid, with 12-18 pinnce on each side, the lowest much the 

 largest, 6-9 in. 1., 2 in. br., lanceolate ; pinnl. lanceolate, cut down to the rachis 

 on each side into 9-12 close elliptic-rhomboidal segm., 2 lin. 1., 1 lin. br., which 

 are inciso-serrated, sometimes halfway down ; texture herbaceous ; rachis firm, 

 naked; sori 2-12 to a segm., roundish, but the lower invol. quite horseshoe- 

 shaped. — Athy. Hookerianum, Moore. 



Hab. Sikkim, 10-12,000 ft. ; gathered by Dr. Hooker. — Pinnje more numerous than 

 in the preceding, the segments narrower, more abundantly but not so sharply toothed, 

 the sori more copious, and the involucre different. 



180. A. (AthjT.) medium, Hk. ; st. tufted, 4-6 in. I., firm, erect, densely 

 clothed throughout with crisped linear reddish-brown scales; fr. 6-9 in. I., 

 4-6 in. br., subdeltoid, tripinnate, with numerous spreading 2»>iii(e on each side, 

 the lowest 8-4 in. 1., 1-1^ in. br. ; pinnl. numerous, lanceolate-rhomljoidal, tlie 

 lobes ovate-acuminate, in the lower part reaching down nearly or quite to the 

 rachis ; texture herbaceous ; rachis firm, erect, fibrillose ; veins pinnate, con- 

 spicuous ; sori copious, often 6-8 to a segm. ; invol. roundish, reniform. — Hk. 

 Sp. 3. p. 227. Ic. t. 43. 



Hab. Tristan d'Acunha. — A well-marked species, which was placed by Carmichael in 

 Asindium. 



** Fronds lanceolate or ovate-lanceolate. Sp. 181-199. 



181. A. (Athyr.) cj/stopterioides, Hk. ; st. 4-6 in. 1., scattered, slender, pale, 

 naked ; fr. 4-6 in. 1., l|-2 in. br., oblong-lanceolate, with numerous pinnui on 

 each side, the lower ones lanceolate, 1-1| in. 1., \-\ in. br., pinnatifid above, cut 

 down to the rachis below into blunt ovate-rhoniboidal/;i2??«/., which are broadly 

 lobed about halfway down to the midrib ; texture herbaceous ; both surfaces 

 slightly hairy and glandular ; sori 2-6 to a pinnl., placed near the base of the 

 teeth ; invol. hispid, lunulate. — Ilk. Sp. 3. p. 220. Athyrium, Eaton. 



Hab. Japan and Loo-Choo. — A small plant with the habit of Cystopteris fragilis, and 

 a slender wide-creeping rhizome. 



182. A. (Athyr.) Ilohenackerianum, Kunze ; st. tufted, 2-4 in. 1., firm, ei'ect, 

 clothed throughout rather closely with linear-subulate scales ; /;•. 6-9 in. 1., 

 1^-3 in. br., ovate-lanceolate, with numerous lanceolate jo/wjio? on each side, 

 which are cut down below nearly or quite to the rachis into ovate inciso-seiTated 

 pinnl. ; texture herbaceous ; rachis naked or scaly below ; sori copious, oblong ; 

 invol, conspicuous, some distinctly curved. — Hk. Sp. 3. p. 220. 



2f 



