Proceedings of the Ohio State Academy of Science. 287 



scaly at least below ; pinnae lanceolate, long-acuminate, broadest 

 at the base ; pinnules very obtuse, the lower pinnatifid ; indusiuni 

 minutely glandular. In woods. Geauga county. (Wayne county, 

 Hopkins). 



14. Phegopteris Fee. Beech-fern. 



Medium-sized ferns with 2-3-pinnatifid or ternate leaves 

 and small round sori without indusia. Veins free. 



1. Leaves 2-pinnatiFKl, triangular pinnae sessile; rachis winged. 2. 



1. Leaves ternate with the three nearly equal divisions petioled ; rachis 



wingless P. dryopteris.. 



2. Leaves longer than broad, usually dark-green; upper part of the 



petiole usually pubescent P. phegopteris. 



2. Leaves as broad as long or broader, usually light-green; petiole 

 mostly smooth P. hexagonoptera.. 



1. Phegopteris phegopteris (L.) Und. Long Beech-fern. 



A fern with a slender, creeping, somewhat chaffy rhizome. 

 Leaves triangular, mostly longer than broad, acuminate and pu- 

 bescent. Pinnae broadest above the base, pinnately parted very 

 nearly to the rachis into oblong obtuse, entire segments, the 

 lower pair deflexed. (P. polypodioides Fee). In moist woods. 

 Rather general but apparently local. 



2. Phegopteris hexagonoptera (Mx.) Fee. Broad Beech-fern. 



A fern with a creeping, chaffy, somewhat fleshy rhizome- 

 Leaves triangular, as broad as long or broader, slightly pubes- 

 cent, acuminate at the apex ; the lowest pair of pinnae broadest 

 near the middle, pinnately parted into linear-oblong, obtuse seg- 

 ments. In dr_y rich woods. General in the state. 



3. Phegopteris dryopteris (L.) Fee. Oak-fern. 



A fern with a creeping rhizome and thin, broadly triangular 

 ternate leaves. Petioles slender, chaffy near the base ; the three 

 main divisions of the leaf stalked. In most woods and swamps.. 

 Geauga, Lake, Ashtabula, and Wayne counties. 



