MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 527 
soft membranous texture; even in the barren fronds the veins never anastomose. The 
secondary pinne are often more than a foot long. The fern fruits but rarely, and then 
usually one lower pinna, or several secondary pinnz thereof, alone fruits. The involucres 
are, I believe, always truly nephrodioid, if examined before they commence to curl up 
their margins. 
N. fuscipes, Wall., differs by being much smaller and less divided, by nearly always 
exhibiting some anastomosing veins on the lower pinne of the barren fronds (therefore 
here referred to Pleocnemia), by the black permanent scales of the stipe. 
N. dissectum, Forst., is much smaller and more glabrous; never shows the multi- 
cellular hairs of JN. ingens; and has the fertile fronds very little contracted: it is a fern 
of South India, Malaya, and Polynesia, not found in the Temperate Himalaya. 
97. N. sPLENDENS, Hook. Sp. Fil. iv. 126, excl. 8. Stipe and main rhachis bright chest- 
nut, more or less scaly; frond large, long lanceolate ; primary pinne long, narrow, 
nearly the same breadth throughout their length, with often 20-30 pairs of short 
secondary pinnee.—Hk. & Baker, Syn. Fil. 282. Lastrea splendens, Bedd. Ferns 
Brit. Ind. t. 42. 
Sikkim and Bhotan, alt. 6000-7000 feet, frequent.—Distrib. Malay Peninsula. 
N. Filiz-Mas, var. marginata, Wall., has the frond and the primary pinne distinctly 
ovate. 
[There is in Wallich's herbarium, among the duplicate sheets of Polypodium mar- 
ginale, Wall. Cat. 318, an example of Nephrodium scabrosum, Baker, marked as collected 
in Nepaul; but in these mixtures of Wallich I doubt the locality as much as the 
species; I do not think JY. scabrosum should be marked a Himalayan plant till some 
other person finds it in the Himalaya. Wallich mixed the plants he got from Wight 
into his own herbarium by ** hand-and-eye”’ sorting. | 
98. N. ANGUSTIFRONS, Hk. & Baker, Syn. Fil, 283. Rhizome far-creeping, covered with 
ovate yellowish scales; stipes distant, with deciduous ovate scales ; frond glabrous, 
elongate, strict, 9-pinnate; tertiary pinne very small, oblong or subquadrate, 
toothed.—Lastrea angustifrons, Moore, MS.; Bedd. Ferns Brit. Ind. t. 226. 
Nepaul, Wallich. Sikkim, Dr. Treutler. 
Not in Wallich’s own herbarium, but two sheets of Wallich’s collecting detected by 
Moore in the Kew Herbarium. A very marked species, with the texture, venation, and 
involucres of JY. Filia-Mas. 
99, N. Boryanum, Hk. & Baker, Syn. Fil. 284 (not of Hook. Sp. Fil. iv. 126). Nearly 
naked, except a few linear lacerate pales near the base of the stipe; secondary 
pinn:z cut down to a winged midrib into widely separated pinnatifid segments 
1-5 in. long; involucres very fugacious.—JV. divisum, Hook. Sp. Fil. iv. 133. 
Aspidium divisum, Wall. Cat. 393. Lastrea Boryana, Bedd. Ferns South. Ind. 
sues RS, 7 
SECOND SERIES.—BOTANY, VOL. I. Ac 
