ii2 Ferns of British India and Ceylon. 



on each side of the rachis (/. e. completely bipinnate), those of the 

 upper margin little smaller than those of the lower. 



Khasya, 3,000 feet elevation. 



Mr. Clarke says it graduates into the type. 



Var. tj Blumeana. Lateral pinna? with 50-60 segments, which 

 are 1 inch long by \ inch broad, equally wide throughout or broader 

 at apex, not falcate, obtuse, rounded, entire or crenulate at the barren 

 apex. A very large fern. Clarke, F. N. I. t. 55. 



Chittagong ; Tenasserim ; Singapore. 



Much the habit of longipinnula. 



Var. subindivisa. (Sp. Clarke.) Small, with only 3 pinna?, 

 terminal one 6 inches long, with many segments, lateral pair hardly 

 longer than the segments of the terminal pinna, or subobsolete. 



Bhotan, Sikkim bed of the Teesta, 1,000 feet elevation. 



Mr. Clarke has constituted this a species in his work on the 

 " Ferns of Northern India," but he now agrees that it is only a 

 variety of quadriaurita. Clarke, F. N. I. t. 56. 



(Mr, Clarke's variety major has arched veins and is Campteria 

 biaurita.) 



11. Pteris Grevilleana. (Wall.) Dimorphic, barren stipe 

 shorter, winged towards the apex ; barren frond pedately 5-fid, 

 scarcely pinnate, margin spinulose-serrate ; fertile frond with 5 

 pinnae, the lower pair bipartite, veins exceedingly obscure. Wall. 

 Cat. 2,680. Agardh, Reccns. Gen. Pter. 23. Clarke, t. 54. 



Sylhet, Cachar, Shapoor. 



Suspiciously like qtiadriaurita, except that the fronds are 

 dimorphic. Mr. Clarke thinks it is more nearly allied to ensiformis. 



12. Pteris longipinnula. (Wall.) Stipes erect, naked, 2-3 

 feet; fronds up to 3 feet long, and 18 inches broad, pinnate ; pinna? 

 about 5 pairs, large, rather distant, deeply pinnatifid, segments entire, 

 blunt, falcate, not distant, 1^-2^ inches long, J-f inch broad, apex 

 usually barren, crenate, or subentire, the lowest pair undivided, or 

 rarely bi-partite ; texture subcoriaceous ; rachis and surfaces naked ; 



