Gary Fewless
Key to the Ferns
| 64. Pinnae often perpendicular to the rachis
and not curving toward the tip of the frond; pinnae margins with sharp
teeth. |
Cystopteris fragilis |
| 64. Pinnae often angled toward tip of frond and/or
curved toward tip of frond; pinnae margins usually with low and rounded
teeth. |
Cystopteris tenuis |
| Return to start of fern key |