48 



POLYPODIUM VULGARE. 



HcAvard; Aberglashlyn, Caernarvonsliire, by Dr. Allchin; and 

 on a small island (Carberiy Island) in Lougb Ree, near 

 Atblone, by Captain A. S. H. Lowe, in the spring of 1856. 



An exceedingly handsome Fern, not characteristic till of 

 good size and well established, then constant under cultivation. 

 The fronds are from twelve to eighteen inches in length, 

 pinnatifid and fertile above, deeply bipinnatifid below. The 

 lower segments barren, upper ones crenate and fertile, the 

 fructification bold and prominent. Underneath the frond is 

 paler, and of a sub-glaucous green colour. Lobules distinct, 

 linear, acute, and serrate. Fronds broad. The lobes long, 

 and very wide in the middle, and these profoundly cut into 

 lesser and closely-set lobules, the lobules being frequently 

 aorain lacerated. 



Fig. 30. 



Serratum, Moore. (Fig. 30.) — Gathered in Guernsey, by 

 Mr. Jackson; at Milnthorpe, by Mr. Crossfield; at Conway, by 

 Mr. Stansfield; at Fountains Abbey, Byland Abbey, Bowncss, 

 Lancaster, Troutbcck Bridge, (Westmoreland,) and near Rydal, 

 by Mr. Joseph Sidebotham, of Manchester; and on the 

 Ingleboro' Mountains, by Mr. Monkman, of Malton. Not 

 uncommon. Fronds large, more than a foot long, and from 

 four to six inches in breadth; lobes sharj^ly and deeply serrated 

 on the margins. When well grown approaches Semilacerum 

 in form, and sometimes, having rounded enlarged teeth or 

 lobules ; approaching Crenatum. 



