500 -MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
Aspl. acwminatum, Wall., and the figure appears made therefrom. This Aspl. acuminatum, 
Wall., I cannot separate from A. sylvaticum. But the authentic example of Diplazium 
speciosum, Blume, differs considerably from 4. acuminatum, Wallich, and appears a good 
species. At all events A. acuminatum, Wall., should be attached to A. sylvaticum rather 
than to A. mme? | 
46. A. Sronrczk m, C. B. Clarke. Caudex very stout, erect, stipes below densely clothed 
with linear scales 1-1 in.; pinne 2-6 by 1-1 in., caudate, regularly pinnatifid 
nearly to the rhachis; sori ohai or linika riots not produced to the margin of 
the frond.— 4. marginatum, Wall. Cat. 209, type sheet partly, not of Linn. A.sorzo- 
gonense, Hook. Sp. Fil. iii. 252, partly; Hk. & Baker, Syn. Fil. 236, partly, not of 
Presl and Mett. . Diplazium sorzogonense, Bedd. Ferns Brit. Ind. t. 246. D. Sto- 
licske, Bedd. Ferns Brit. Ind. Suppl. 13, t. 361. 
Himalaya, alt. 7000—10,000 feet, from Nepaul to Bhotan, in large quantity and gre- 
garious around Darjeeling. 
My examples show a greater Biflécéhos in width of pinna than do Beddome's figures 
of A. sorzogonense and Stolicehe.—A. sorzogonense, Presl, is founded on Cuming’s No. 
301 (see also Mett. Farngatt. Aspl. 185), a Luzon plant; it is exactly =A. parallelum, 
Wall. Cat. 228, from Penang and Malacea. This is a thoroughly tropical fern, the pinnæ 
not caudate, the segments obtuse, the sori long, reaching quite to the margin. There 
is an example of the true A. sorzogonense marked * Khasia, Griffith," but without 
any original ticket. -I suspect Griffith collected this at Malaeca.—The Javan A. sorzo- 
gonense, referred to the Luzon plant by Mettenius, differs again somewhat, but may 
belong; it certainly does not approach the Sikkim A. Stoliczhe.—A.  sorzogonense 
B. majus, Hook. (Sp. Fil. iii. 252), Hk. & Baker (Syn. Fil. 236), differs totally.— A. 
polymorphum, Wall. Cat, 230,.is greatly mixed in the mounting; the Kew Herb. sheet 
contains a frond of 4. Stoliceke, and another not A. polymorphum. T 
3 Fonds RAEREIS or more compound. 
47. A. TORRENTIUM, C. B. Clarke. Catdex erect; stipes nearly glabrous; frond 6-18 
in., 2-pinnate very irregularly cut ; secondary pinne 1-2 in., pinnatifid 3-3 the way 
to the midrib ; sori long ; involucre early disappearing. (Pl. LXIV. figs. 2, pe 
Sikkim, alt. 1500-5000 feet, ©. B. Clarke. | 
Collected on several oceasions, always on the margins of torrents, goe the caudex 
stands, from sand between rocks, often several inches out of the ground. The most 
marked feature in this fern is the very fugacious involucre; I long supposed it a 
Gymnogramme. It is possible that it is a form of A. latifolium, Don, growing irregu- 
larly in an abnormal situation. The secondary pinnæ vary greatly in size, and in the 
degree to which they are developed. - 
48. A. SIKKIMENSE, C. B. Clarke. Primary pinne 2 feet, resembling tes ing A. = : 
