Gary Fewless
Key to the Ferns
| 55. Basal pinnae less than 1/2 as long as longest
pinnae; stipe less than 1/4 the total frond length; scales
of two types, one flat and broad, the other hair-like. |
Dryopteris filix-mas |
| 55. Basal pinnae more than 1/2 as long as the
longest pinnae; stipe more than 1/4 the total frond length; only flat,
broad scales present. |
56 |
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