498 MR. €. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
Mett. Farngatt. Aspl. 179, partly; Hook. Sp. Fil. iii. 248; Benth. Fl. Austral. vii. 
750; Hk. & Baker, Syn. Fil. 232. A. acuminatum, Wall. Cat. 205; cf. Mett. in 
Ann. Mus. Lugd. Bat. ii. 238. A. elatum, Mett, Farngatt. Aspl. 180. Diplazium 
sylvaticum, Schk. Krypt. Gew. 80, t. 85 b; Bedd. Ferns South. Ind. t. 161, Ferns 
Brit. Ind. t. 243. Anisogonium sylvaticum, Hk. & Bauer, Gen. Fil. t. 56 B. 
Sylhet Station, alt. 100 feet, Jaintea, Jarain, alt. 4000 feet, C. B. Clarke.—Distrib. 
Nilgherries and Ceylon; Malay Peninsula and Islands and South China, Mauritius 
(Central Africa, America, Polynesia ?). 
My fronds are typical specimens, i. e. they resemble exactly single pinne of 4. latifo- 
lium, Don; they are attached to the caudex, and are very fully fruiting. Wallich’s ex- 
ample, marked by his hand Æ. soboliferum, is exactly the same thing, from Chappedong 
Hill, in Birma; but the number on the ticket (viz. 1670) is wrong, and the reference of 
the specimen to A. porrectum, Wall. (Hook. Sp. Fil. iii. 251), seems unusually wide of the 
mark. This fern appears to me only to be fronds from the young caudex (not young 
fronds) of A. latifolium; G. W. Cat. Ferns Ceylon, 5, appears to distinguish between 
such 1-pinnate fronds and 4. sylvaticum; but I do not know how he does it. As to 
Diplazium bulbiferum, Brack. U.S. Explor. Ferns, t. 18. fig. 1, it may he either this or 
A. japonicum, if these two can be kept distinct. 
44. A. TOMENTOSUM, Hook. Sp. Fil. iii. 249, not of Mett. Caudex 1-2 in., erect from 
the ground, sending down very wiry black roots; main rhachis pubescent, not 
tomentose ` pinnze narrow-oblong, falcate, usually auricled at base on the upper 
margin, entire, or in large fronds pinnatifid halfway to the midrib; sori long, often 
reaching nearly to the margin —Hk. & Baker, Sp. Fil. 234. A. soboliferum, Wall. 
Cat. 201, type sheet. Diplazium tomentosum, Bedd. Ferns Brit. Ind. t. 195. 
Khasia, Griffith (one example).—Distrib. Burma, Malay Peninsula. 
This species here: stands, as Mr. Baker has left it, on its non-creeping rhizome. Bed- 
dome’s figure is excellent. On the same caudex are many short-stiped fronds, with sub- 
entire pinnæ, and often a few long-stiped fronds with pinne pinnatifid halfway down. 
The Indian type is not exactly that of Diplazium tomentosum, Blume, Enum. Pl. Jav. 
Fil. 192; the authentic specimen of which (does not show the rhizome, and may therefore 
be another species, and) has the pinne pinnatifid to the rhachis nearly, and the main 
rhachis very villous, subtomentose.—The fern of Griffith’s referred by Fée to his Asplenium 
argutans (Gen. Fil. 194, See Mém. 53) is 4. tomentosum, Hook.; but it probably has 
nothing to do with the Bourbon plant, which is Fée's type of 4. argutans.—The type 
specimens of Wallich have a rooting penultimate bud. 
45. A. JAPONICUM, Thunb. Fl. Jap. 334. Rhizome creeping; main rhachis glabrous or 
pubescent; pinne alternate or subopposite, pinnatifid halfway or nearly the whole 
way to the rhachis into obtuse lobes; veins all simple, or some forked; sori linear, 
commencing near the midrib, falling short of the margin.—Hk. & Baker, Syn. Fil. — 
294. A. Schkurii, Hook. Sp. Fil. iii. 251, not of Mett., nor of Thwaites. A.ambi- — 
