( 25 ) 
12. Pin. opposite stalked, sharply serrated ; the two sides 
nearly equal, st. and rach. naked. macrophyllum. 
Loc. Assam. Bedd. F. S. I., 142. (Pin. feiv, larger, text, less 
coriaceous than last.) 
B Pinnae with from half to whole of lovjer side cut away. 
(Resectum group.) 
13. St. slender, with rach. polished dark chestnut or grey 
opaque, pin. subsessile, almost dimidiate. resectum. - — . 
Loc. wet rocky crevices to 8,000 feet. Khasia. Bhotan, 
Sikkim. Nepal. Simla, 2nd waterfall and Chadwick falls, each 
on left side. 
14. St. firm, and rachis chestnut, pin. dimidiate. 
lieterocarpum. — 
(Upper edge more deeply incised than last, and resembling 
a dimidiate Adiantum.) 
Loc. Khasia. Nepal. Simla. Bedd. F. S. I., 131. 
* * * * Pinnae cut down at any rate in lower part, nearly 
or quite to rachis. 
15. Pin. lobed half way or more, and deeply* inciso-serrate. 
planicaule. *~ 
Loc. Trees and rock. Khasia, 4 — 6,000 ft. Sikkim, Nepal. 
Kumaon, Gurhwal. Masauri. Simla. 
16. Pin. cut down nearly or quite to rach. below into stalked 
lobes. laciniatum. 
Loc. Assam to Nepal. Duphla hills. Simla (?) Bedd. F. S. 1. 145. 
***** Fronds hi to quadri-. pinnate. 
*f* Venation subflabellate 17 — 21. 
A Text, coriaceous. Ultimate divisions of frond lin. or ovate- 
cuneate, often shining on upper surface. (Cuneatum group.) 
17. Fr. 1—2 in. 1., deltoid. Rutamuraria. 
Loc. exposed rock. Kashmir Bedd. F. B. I., 61. 
Fr. under 1 J ft. 1. coriaceous. 
18. St. and rach. chestnut polished, winged and compressed 
above, lower pin. deltoid ; sori occupying whole surface. 
adiantum nigrum. 
