7. PHEGOPTERIS Fee, 1851. 
Mot a mot fougere du hetre. Ce genre a pour le 
type Phegopteris des auteurs (dnyds, hetre; arepis 
fougere) Fee. 1851. Gen. Fil. 361. 
Rootstock slender, creeping. Leaves triangular, 2-3- 
pinnatifid or ternate. Sporecases in sori without indusia. 
} Leaves triangular, 2-pinnatifid. 
* Leaves broader than long. 
_ 1, P. hexagonoptera (L.C. Rich.) Fee. 
Lilix mas rachi seu nervo medio alato. Banister; 
Ray, Hist. 2: 1926. 
Polypodium hexagonopterum L. C. Rich.; Mich. 
ale 222741. 
Phegopteris hexagonoptera Fee, \. c. 243. Eaton, 
Ferns N. A. 2: 147. t. 65; in Gray Man. 686. 
Underw. in Ill. Fl 1: 1g; Nat. Ferns 109; in 
Britt. Man. 16. Clute, Ferns 202. Waters,Ferns ~ 
189. 
-Beacu FErn. 
Plants 3 dm. or higher; leaves nearly equilaterally tri- 
angular; pinnae adnate to the rachis, the lowermost some- 
times 1 dm. 1., lanceolate, with crenate-dentate sezments ; 
segments of the upper pinnae denticulate or entire; sori 
small, near the apices of the free veinlets. 
In open, dr y woods. June-August. 
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