MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 475 
margins entire, veins copiously reticulated.—Hk. & Baker, Syn. Fil. 186. Blech- 
nidium melanopus, Bedd. Ferns Brit. Ind. t. 50. 
Khasia, Simons, Dodgson. 
Dodgson’s specimens are good, but do not show the rhizome. 
24. WOODWARDIA, Smith. 
1. W. Rapicans, Smith; Hook. Sp. Fil. iii. 66; Wall. Cat. 58; Hk. & Bauer, Gen. Fil. 
t. 17; Fée, Gen. Fil. t. 174; Bedd. Ferns Brit. Ind. t. 88; Milde, Fil. Europ. 47; 
Hk. & Baker, Syn. Fil. 188. W. stans, Swartz, Syn. Fil. 117; Schkuhr, Crypt. 
t. 118. JV. auriculata, Blume, Enum. Pl. Jav. Fil. 196. 
Himalaya; from Kashmir to Bhotan, alt. 3000-8000 feet, frequent. Khasia; alt. 
4000-5000 feet, not plentiful.—Distrib. Java ; South Europe and Macaronesia ; California 
and Mexico. 
The Indian form is erect, and not so fine as the pendent plant in Madeira and the 
Canaries. 
25. ASPLENIUM, Linn. 
Subgenus I. Thamnopteris, Presl, = Neottopteris, J. Smith. A subgenus 
containing probably but one good species. 
l. A. wrpus, Linn. Sp. Pl. 1537. Fronds 13-6 feet.—Blume, Enum. Pl. Jav. Fil. 173; 
Wall. Cat. 198; Roxb. in Cale. Journ. Nat. Hist. iv. 496; Hook. Sp. Fil. iii. 77; 
Bot. Mag. t. 3101; Mett. Farngatt. Aspl. 85; Carr. in Fl. Viti. 353; Hk. & Baker, 
Syn. Fil. 190; Luerssen, Fil Graeff. 146; Benth. Fl. Austral. vii. 744. A. muse- 
folium, Mett. Farngatt. Aspl. 86; Hook. Sp. Fil. iii. 78. 4. phyllitidis, Don, Prodr. 
Fl. Nep. 7; Mett. Farngatt. Aspl. 87; Hook. Sp. Fil. iii. 87. A. simplex, Blume, 
Enum. Pl. Jav. Fil 174; Mett. Farngatt. Aspl. 86. 4. australasicum, Hook. Fil. 
Exot. t. 88; Mett Farngatt. Aspl. 85; Hook. Sp. Fil. iii. 79. Thamnopteris nidus, 
Presl, Epimel. 68; Bedd. Ferns Brit. Ind. t. 197. T. phyllitidis, Presl, Epimel. 
68; (—nidus, var.) Bedd. Ferns South. Ind. t. 123. 
From Nepaul to Assam and Chittagong, alt. 500-5000 feet; common in the hills.— 
Distrib. Malabaria and Ceylon, Malay Peninsula and Islands; extending throughout 
moister South-east Asia from Mauritius to Polynesia. 
Frond varying (in the North-Indian examples) from # to 5 in. in width, ‘tapering to 
the very base, not tapering acuminate or subobtuse at the apex. Sori extending less 
than } (or nearly the whole) of the breadth of the frond, ascending or subpatent from 
the midrib, never distant in the North-Indian plant. Texture thin or thick. Midrib 
more or less prominent towards the base of the frond. In a word, none of the cha- 
racters proposed as specific in Thamnopteris are constant, nor do any two invariably go 
together. 
Var. Simonsiana, (sp.) Hook. Sp. Fil. iii. 81. Frond 9-18 in.—Hook. Ic. Pl. t. 925; Mett. 
