MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. : 553 
with red hairs ; fronds uniform, caudate, thinly grey tomentose beneath; sori in the 
upper part of the frond often somewhat scattered. (Pl. LXXXII. fig. 4.) ` 
Jaintea ; Jarain, alt. 3500 feet, C. B. Clarke; once collected. 
Next P. adnascens, but slenderer; at once recognizable by the short hairy stipes. 
29. P. HETERACTIS, Mett.; Kuhn, in Linnea, xxxvi. 140. Rhizome somewhat stout, 
wide-creeping, with lanceolate-linear yellow-red scales; stipes distant, 1-5 in., more 
or less scaly or tomentose; fronds narrow-oblong acuminate, the fertile similar 
to the barren or somewhat narrower, covered beneath uniformly with stellate 
scales, the rays of which are lanceolate with filamentous hairs admixed.— P. Lingua, 
var.; Hk. & Baker, Syn. Fil. 2nd ed. 512; Bedd. Ferns Brit. Ind. Suppl. t. 385, 
not the scale ? | 
Sikkim and Bhotan, alt. 4000-6000 feet, frequent. Khasia; alt. 3000-5000 feet, 
frequent. 
All my North-Indian examples show the stellate scales with additional filamentous 
hairs, as insisted on by Kuhn; and the fronds are also more acuminate than in N. Lingua, 
Swartz. The other differences (regarding the breadth and dimorphism of the frond) do 
not hold, and the Indian should probably be regarded as a var. of the old Chinese and 
Japanese plant. 
30. P. stremosum, Swartz, Syn. Fil. 29, 226. Rhizome short; stipes approximate, with 
lanceolate-linear scales at their base; frond usually 8-20 in., attenuate, decurrent 
atthe base, uniformly clothed with short reddish-brown tomentum beneath; sori 
very small, continuous in 8-12 rows between the main veins.—Hk. & Baker, Syn. 
Fil. 850. P. costatum, Wall. Cat. 265, type sheet; Mett. Farngatt. Polypod. 131, 
t: 8. fig. 14; Hook. Sp. Fil. v. 50. Miphobolus venosus, Blume, Fl. Jav. Fil. 63, 
t. 28. N. costatus, Bedd. Ferns Brit. Ind. t. 120. ; 
Himalaya, alt. 2000-6000 feet ; from Gurwhal to Bhotan, very common. Khasia ; 
alt. 2000-8000 feet, very common. Chota Nagpore; Parasnath, alt. 2500 feet, C. B. 
Clarke.—Distrib. South India, Malay Peninsula and Islands. j 
31. P.sUBFURFURACEUM, Hook. Sp. Fil. v. 52. Differs from P. stigmoswm in having the 
tomentum beneath white, the sori much larger, distinct, in 4-6 rows between the 
main veins.—Hk. & Baker, Syn. Fil. 351. Niphobolus vii tee hia Bedd. Ferns 
Brit. Ind. t. 259. 
Bhotan and Mishmee, Griffith ; 5 sheets of examples. 
The largest example is 4} in. wide, but the smaller are narrower than much of 
P. stigmosum. The fronds are attenuate at the base, but less decurrent on the stipe (so 
as to make it winged) than in P. stigmosum. The stipe of P. subfurfuraceum is glabrous 
or nearly so.—The species is, I believe, good, founding it on the sori, but critical. The 
5 sheets which I refer here are all Griffith’s, but I have collected them out of various 
bundles of the Herbarium. | 
|. Hd P. NUMMULARLEFOLIUM, Mett. Farngatt. Polypod. 122, t.3. figs. 9, 10, Rhizome 
AF2 
