100 DORYOPTERTS PEDATA. 



base. Equally pinnatifld, with ascendant lobes, of which the 

 lower is largest, the rest diminishing upwards. All the branches 

 terminate in a longish entire apex. 



Stipes flat and slightly grooved in front, ebeneous, scaly at 

 the base. Length of stipes half that of the frond. 



Fronds forming a spreading tuft from a short almost erect or 

 subdecumbent rhizoma. 



Length of frond from four to six inches, colour bright green. 



Sori continuous. 



My thanks are due to Mr. Stansfield, of Todmorden, for a 

 plant; and to Mr. Moore, of the Chelsea Botanic Gardens, and 

 to Mr. Henderson, of "Wentworth, for fronds. 



There is so much confusion regarding the present species, 

 the D. palmata, and D. collina in our Nurserymen's Catalogues, 

 that it would be unsafe to give a list of those supplying the 

 plant. 



It is distinguished from D. palmata by its much smaller size 

 and more slender proportions, as well as by its decidedly three- 

 parted fronds, which are never proliferous. 



It is distinguished from D. collina by its fronds being thinner 

 and three-parted. It resembles D. collina in the smaller-sized 

 fronds and non-proliferous character. 



The illustration is from a frond kindly forwarded by Mr. 

 Moore, of the Botanic Gardens, Chelsea. 



