( 53 ) 
A — Substance thick, all the veins obscure. 
Fr. uniform. 
St. none, or very short. 
a. Under surface naked. 
Sori large immersed, in single row near midrib. 
35. Ft. 2 — 4 in 1 . coriaceous. rostratum. 
Loc. Miskmi. Khasia. Bhotan. Bedd. F. B. I., 150. 
36. Fr. G — 12 in 1. subcoriaceous. linear e. 
Loc. N. Ind. Himal. 5 — 10,000 ft. Bedd. F. S. I., 180. 
37. Sori large copious, scattered irregularly. super ficiale. 
Loc. Khasia. Bhotan 3 — 6000 ft. Bedd. F. B. I. 75. 
b. — Undersurface matted or furfuraceous. 
38. Fr. ligulate entire. angustatum. 
coriaceum Roxb Sphcerocephalum Wall. 
Loc. Assam. Bedd. F. S. I. 186. 
B. Substance thinner, veins distinct i 
39. Sori large prominent, in row near midrib. normale. 
(veinlets prominent.) 
(Best distinguished from large forms of lineare by non - 
immersed sori, and young sori without peltate scales. 
Loc. North Bengal 4 — 6000 ft. Nepal. Khasia. Assam. Bedd. 
F. B. I,, 10. 
f f Main veins distinct, nearly or quite to edge. 
40. Fr. dimorphous rhyncophyllum. 
Hab. to 4C00 ft. 
Loc. Khasia. Assam. Bedd. F. B. I,, 9. 
Fr. uniform. 
41. Fr. less than 12, in long, edge repand., text, coriaceous. 
Ori jfthianum. 
Loc. Trees to 7,000 ft. — to eastwards. Mishmi, Khasia, Bhotan. 
Bedd F. B. I., 158. 
42. Edge entire ; text, herbaceous. 
ovatum. 
