Catalogue of Flowering Plants and Ferns, 



PTERIDOPHYTA. FERN PLANTS. 



POLYPODIACEAE. FERN FAMILY. 



POLYPODIUM L. Polypody. 



Polypodium vulgare L. (common). 

 Polypody. 



Shaded ledges. Occasional or frequent in northern dis- 

 tricts, becoming common near the coast. June — Aug. 



The var. cambricum (L.) Willd. has been collected at 

 Stonington (Miss Stanton) and at Cornwall (L. M. Under- 

 wood). 



The rootstock is medicinal. 



PHEGOPTERIS (Presl) Fee. Beech Fern. 

 Phegopteris polypodioides Fee (Polypodium-like). 

 Phegopteris Phegopteris Under w. 

 Long Beech Fern. 



Rich moist woods and on shaded banks. Rare or local 

 near the coast, becoming occasional or frequent northward. 

 July. 



Phegopteris hexagonoptera (Michx.) Fee (six-angled fern). 

 Broad Beech Fern. 



Rich woods either moist or dry. Occasional near the coast, 

 becoming frequent or common northward. Aug. 



This fern is so closely related to Phegopteris polypodioides 

 that it is often difficult to decide to which species a given 

 specimen belongs. 



Phegopteris Dryopteris (L.) Fee (oak-fern). 

 Oak Fern. 



Rocky woods in rich moist soil. Rare or local over most 



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