MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 517 
very glabrous beneath, sori larger and involucres firmer. This is considered by Beddome 
a var. of N. canum, has been marked by Sir W. J. Hooker nov. sp. near N. falcilobum, 
but is referred to N. prolixum by Mr. Baker, as it usually shows glands at the foot of the 
pinne. It is exceedingly like N. falcilobum in habit, but has the main rhachis glabrous 
on the underside of the frond, also the two lowest veins approach the margin o£ the 
sinus, not above it. It differs from AN. canum in its rigid texture and larger sori, but in 
size and outline approaches it. I have collected this plant in Chumba, in Sikkim, and 
in Khasia.—Some of the large Khasi varieties have the lowest segment of each pinna 
more developed, subpinnatifid, and consequently the veins in it forked. 
tt Veins in the lobes of the pinne (or many of them) forked. 
9. N. THELYPTERIS, Desv. in Mém. Soc. Linn. vi. 257. Rhizome slender, creeping ; 
frond long, lanceolate, truncate at the base, texture thin herbaceous; sori near the 
margin of the segments which are (when dry) recurved; involucre small, incon- 
spicuous.—Hook. Brit. Ferns, t. 13, Sp. Fil. iv. 88; Hk. & Baker, Syn. Fil. 271. 
Acrostichum Thelypteris, Linn. Sp. Pl. 1528. Aspidium Thelypteris, Swartz ; 
Schk. Krypt. Gew. t. 52; Milde, Fil. Europ. 116. Lastrea Thelypteris, Bedd. Ferns 
Brit. Ind. t. 44. e 
Kashmir; Bandipoor, Jacquemont, T. Thomson; City Lake, alt. 5600 feet, H. C. 
Levinge. Kunawur; alt. 6000 feet, T. Thomson.—Distrib. South Deccan Mts., Europe, 
North Asia, North America; Cape Colony, New Zealand. 
The Kashmir examples agree exactly with the European type. Khasia is given as a 
locality by Sir W. J. Hooker on the authority of No. 246 of Hook. f. & Thoms. collection, 
which is AN. gracilescens. I altogether doubt the plant growing in Khasia, though 
Beddome states his t. 44 (which is true JN. Thelypteris) to be taken from a Khasi ex- ` 
ample.—As to Lastrea Fairbankii, Bedd. Ferns Brit. Ind. t. 254, reduced by himself, in 
Ferns Brit. Ind. Suppl. p. 16, to N. Thelypteris, I find no authentic example at Kew; 
but the figure of N. Fairbankii shows no forked veins, is said to be taken from a Pulney 
specimen, where it is very improbable the plant grows, and does not suit N. Thelypteris 
either as to the cutting or reduced approximate lower pinne. From the figure, I should 
judge N. Fairbankii to be either the reduced small form of N. prolizum considered “ nov. 
sp. near falcilobum” by Sir W. J. Hooker, or N. Beddomei, Baker, if these two really 
differ.—Nearly all authors quote (for N. Thelypteris) Engl. Bot. t. 1018; Sir W. J. 
Hooker has written in pencil over that plate in the Kew Library “is P. Phegopteris |” 
and Newman (Brit. Ferns, 194) is of the same opinion. The plate (t. 1018) is a very 
poor one, and does not show the characteristic outline of Thelypteris; the sori appear 
naked, the veins are all simple. I yet suspect that it is really an imperfect repre- 
sentation of Thelypteris, for in the magnified pinnule there are shown two aspidioid 
indusia. 
10. N. apicrrtorum, Hook. Sp. Fil iv. 122, t. 248. Stipe manifest; main rhachis 
beneath with many lanceolate and ovate scales often lacerate, but without fibrillze or 
