132 Ferns of British Imdia and Ceylon. 
American plant. The two species appear to me so very closely 
allied as to be distinguished only with difficulty, if at all ; the 
rachis is slightly puberulous in both. The figure 49, Fems Brit. 
Ind.^ given to represent the Mishmee plant, is a copy of Hooker's 
figure of the American species. 
2. Blechnum serrulatum. {Fich.) Caudex elongated stout 
ascending; stipes 6-12 inches long, strong, erect, smooth, nearly 
naked; fronds oblong acuminate, 1-2 feet long, 6-9 inches broad, 
with 12-24 pairs of quite distinct articulated Hnear-oblong pinnae 
on each side, the largest of which are 4-5 inches long, ^-f inch 
broad, narrowed gradually towards the point and downwards to a 
narrow base ; the margin finely incised ; texture coriaceous ; rachis 
rigid naked; veins very fine and close, not conspicuous; feitile 
pinnae narrower; sori in a continuous line close to the midrib. 
Eich. in Act. Soc. Nat. Par. i. 114. Hook. Syn. Fil. 186. 
Malacca. 
(Also in tropical America, Australia, Borneo, and New 
Caledonia.) 
3. Blechnum orientals. {Linn.) Caudex stout erect, 
clothed at the crown with fibrillose dark brown scales ; stipes 4-8 
inches long, strong, erect, scaly below ; fronds 1-5 feet long, 6-36 
inches broad, ovate, with very numerous nearly contiguous linear 
pinnae on each side, which are about f inch broad, narrowed to a long 
point, the bases quite distinct, the upper ones decurrent, a few of 
the lowest mere auricles ; texture subcoriaceous ; rachis and both 
surfaces naked; veins fine and close ; sori in a long continuous line 
close to the midrib. Li7i. Sp. Fl. 1535. Hook. Syn. Fil. 186. Bedd. 
F S. I. t. 29. 
Throughout India, Ceylon, and the Malay Beninsula, up to 
6,000 feet in the south, and 4,000 feet on the Himalayas. 
(Also in the Malay Islands, China, Polynesia and Australia.) 
4. Blechnum findlaysonianum. ( Wall.) Caudex very 
small ; stipes short ; frond ample, 2-4 feet, ovate-lanceolate, sub- 
