Portion of mature Frond— upper side. 



« 



POLYPODIUM VULGAKE. 



LiNNiEUS. LiGHTFOOT. 



Hudson. Withering. Smith. Mackay. Francis. 



Newman. Babington. Hooker and Arnott. 



Moore and Houlston. Deaken. Sowerby. Schkuhr. 



WiLLDENOW. SpRENGEL. PrESL. FeE. 



PLATE XXXVIII. 



Polypodiwm canariense, 

 " viterhiense, 



PoUiJodium vulgare, 



Pohj'podium KarwinsUanum, 

 " Ctenopteris vulgare, 



" virginianum, 



" Canibricum, 



" intermedium, 



Ctenopteris vulgaris, 



WiLLDENOW. 

 BOCCONE. 



Bolton. 



Beaun. 



Peesl. 



Of Gaedens. Moeison. 



LiNNJEtrS. 



HOOKEE AND AeNOTT. 



Newman. 



Poly podium — Polypody. 



Vulgare — Common. 



One of the commonest and most universally distributed Ferns 

 in the temperate regions, flourishing in our hedge-rows, on 

 rocks, walls, and stumps of trees^ it may be justly called a 

 parasite, which seeks to hasten to destruction those trees where 

 decay has made its appearance. This Fern is subject to variety 

 from seed, some of which are so dissimilar from the typical 

 form, that it requires the knowledge of the Botanist to point 

 out that these distinct varieties belong to Polypodium vulgare. 

 Amongst these may be mentioned the P., Camhricum of Linnaeus, 

 VOL. I. ^ 



