MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA.: |. 498 
form the frond is very narrow, attenuated at both ends, distinctly 1-pinnate. This var. 
does not, [ think, run into var. 3, attenuata. ; 
Var. 5. flabellulata. 2-pinnate; rhachis firm, appearing round when dry; frond red, 
1-3 feet; secondary pinne deeply pinnatifid, segments laciniate; involucre small, 
fugacious ; sori scattered, round. (Pl. LX.) 
Sikkim, alt. 13,000 feet; Yakla, Jongri, C. B. Clarke.—In cutting this is very like 
some forms of var. 1, dentigera; but it is really, I believe, a highly developed form of 
var. 4, retusa. 
Var. 6. polyspora. 2-pinnate, often sub-3-pinnate; rhachis firm, appearing round when 
dry; frond red, 1-3 feet; involucres large, approximate, very persistent, often 
nephrodioid; sori large, often ultimately thickly covering the whole of the pinnules. 
(Pl. LXI. fig. 1.) 
North-west Himalaya, alt. 6000—10,000 feet, from Kumaon to Chumba.—This fern 
appears very restricted in area. Iam in great doubt as to its affinity: the large sori 
point to A. macrocarpum, var. squarrosum ; but the sharply serrate margin has caused 
every body to refer it to 4. Filix-femina. | 
| Var. 7. Parasnathensis. l-pinnate, sub-2-pinnate; rhachis appearing triangular when 
dry ; frond reddish, 13 foot, narrow-oblong, scarcely attenuated at the base; primary 
pinne 14 in., broadest at the base; secondary pinnæ i-j in., acutely toothed, 
scarcely pinnatifid; involucres short-oblong, in two oblique rows, very persistent. 
(Pl. LXI. fig. 2.) | 
Parasnath, in Chota Nagpore, alt. 4000 feet, €. B. Clarke.—I can make nothing of 
this, except that I do not think it is at all nearly connected with any form of Indian 
A. Filix-feemina. : 
30. A. oxyPHYLLUM, Hook. Sp. Fil. iii. 221, not of Wall. nor of J. Smith. Scales at the 
base of the stipe many linear-lanceolate, reddish; frond 6-36 in., oblong-lanceolate, 
2-pinnate, slightly narrowed never attenuate at the base, coriaceous, rigid, some- 
what shining beneath, with numerous fine striations in the dried state; primary 
pinnze often falcate; secondary pinne distinct, usually auriculate, sometimes sub- 
entire scimitar-shaped, sometimes deeply pinnatifid; involucre small fugacious 
or none; sori round, punctiform, or polypodioid.—Hk. & Baker, Syn. Fil. 228. 
A. eburneum, Mett. Farngatt. Aspl. 194. Athyrium oxyphyllum, Bedd. Ferns Brit. 
Ind. t. 67. A. stramineum, J. Smith; Moore, Ind. Fil. ii. 188. Aspidium dre- 
panopterum, A. Braun; Mett. Fil. Hort. Lips. 93, t. 19. figs. 1-4. A. eburneum, 
Wall. Cat. 389, partly, not as to type sheet. Lastrea eburnea, J. Smith, Enum. 
Ferns cult. at Kew, 1845, 28. Polypodium drepanopterum, Kunze, JD Linnea, 
xxii. 318. D ozyphyllum, Wall. Cat. 324. P. Kulhaitense, W. S. Atkinson, MS. 
Himalaya, alt. 4000-11,000 feet, from Gurwhal to Bhotan; very common from 
Nepauleastwards. Khasia, alt. 3000-6000 feet, common.—Distrib. Confined to North 
India; i. e. the Java and J apan examples placed here by Mr. Baker I remove to A. ma- 
| Crocarpum and A. niponicum respectively. ` Pid ane 
. This set of plants is tolerably well separated from all the other Indian Aéhyriums by 
