Key ex Copeland 1949, Philip. J. Sci. 77:408
| 1a. |
Frond tripinnatifid or more compound |
2 |
|
Frond bipinnate, stipe brown |
C. habbemensis |
| 1c. |
Frond hardly bipinnate, stipe black |
C. sagnioides |
| 2a. |
Lowest pair of pinnae much enlarged |
C. dissecta |
|
Lower pinnae all similar |
3 |
| 3a. |
Stipe sparsely hairy |
4 |
|
Stipe densely steose and scaly |
5 |
| 4a. |
Lamina over 40 cm long |
C. hypolepioides |
|
Lamina under 15 cm long |
C. alpina |
| 5a. |
Sori dorsal on veinlets |
6 |
|
Sori terminal on veinlets |
C. pulchra |
| 6a. |
Frond tipinnate |
(also sp. Nov) C. vilis |
|
Frond 5-pinnatifid |
C. speciosissima |
