POLYPODIIM VULGARE. 



39 



also near Hutton Railway Bridge, in the neighbomhood of 

 Malton, very sparingly, by Mr. C. Monkman. This Fern is of 

 the Ovatum type, and when growing, of a crispy appearance, 

 the subsidiary rachides being wavy. The sori are round, not 

 long as in Serratiim, and large. Rare. Frond broad oblong, 

 abrupt, and caudate at the apices, the margin of the lobes 

 distantly and finely sharp-toothed, or saw-toothed. Less coria- 

 ceous. Uppermost lobes not much shorter, and caudate at the 

 apex, the whole of the lobes ascending. 



Fig. 19. 



Interruptum, Moore. (Fig. 19.) — Rare. This variety has 



