516 3 MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
fugacious.— Lastrea cana, Bedd. Ferns Brit. Ind. t. 307. Aspidiwm appendiculatum, 
Wall. Cat. 349, type sheet. A. eburneum, Wall. Cat. 389, type sheet printed 
ticket. 
Near Simla; Dr. T. Thomson, Edgeworth. Sikkim; Yakla, alt. 8000 feet, C. B. 
Clarke. 
I fear this is only a var. of N. prolixum. The pinne are without glands at the base, 
the frond delicate hairy, but I can find no good distinction, and my soft, hairy, larger 
Khasi A. prolizum may be named N. canum.—Of A. appendiculatum, Wallich collected 
a large series; the type sheet in his Herbarium is XN. canum, Baker type; the second 
sheet in his Herbarium is large N. canum verging towards N. prolixum, but unusually 
hairy : the third sheet in his Herbarium has looped veins but no trace of an involucre; 
it may be N. extensum, Hook.: a fourth sheet in Wallich’s Herbarium is Polypodium 
erubescens, Hook. Of Wallich's Aspidiwm appendiculatum communicated to Kew, some 
is Nephrodium prolixum, Baker type ; some is N. parasiticum, 
7. N. ErwEsu, Hk. & Baker, Syn. Fil. 497. Stipe not seen; main rhachis minutely 
obscurely pubescent ; frond 16 by 43 in., lanceolate, tapering at both ends, glabrous; 
pinne patent, subobtuse, pinnatifid halfway to the midrib; lobes broad, short, 
obtuse; sori close to the margin; involucre small, fugacious—Lastrea Hlwesii, 
Bedd. Ferns Brit. Ind. Suppl. 18, t. 376. 
Sikkim; H. J. Elwes, once collected. 
Less cut down than any other species of the section. The whole material is one frond, 
without base or stipe, but it seems a new species. 
_ 8. N. porte, Hk. & Baker, Syn. Fil. 268. Tufted; stipes long, almost invariably 
auricled ; frond lanceolate, somewhat suddenly narrowed at the base into the auricles ; 
main rhachis hairy at least on the upper surface of the frond, often with glands at the 
base of the pinnze ; pinnze eut down nearly to the midrib; segments oblong, often 
faleate, but not very oblique to the midrib; sori small or medium-sized, involucres 
glabrous.—W. octhodes and appendiculatum, Hook. Sp. Fil. iv. 109. Aspidium pro- 
licum, Willd. Sp. Pl. v. 251. A. glanduliferum, Wall. Cat. 347. A. appendiculatum, 
Wall. Cat. 347, partly; Mett. Farngatt. Pheg. & Asp. 81, not of Blume. A. octhodes, 
Kunze in Linnea, xxiv. 282; Mett. Farngatt. Pheg. & Asp. 82. A. xylodes, Kunze 
in Linnea, xxiv. 281. Lastrea octhodes and tylodes, Bedd. Ferns South. Ind. tt. 106, 
107. 
Himalaya, from Kashmir to Bhotan; alt. 2000-8000 feet, very common. Khasia; 
alt. 2000-5000 feet, very common.—Distrib. South India, Ceylon, Mauritius and caes. 
Burma. 
The large Sikkim AN. prolizum has fronds 4-6 feet long; the sori are either near the. 
midrib or the margin of the segments; the frond is usually nearly glabrous beneath, 
sometimes hairy. There are smaller, more hairy forms, in Khasia, sometimes but 1 foot = 
long, and running (I fear) into N. canum. The most marked form is a small rigid plant ` ` 
