LASTREA DILATATA. 



305 



Perthshire, Forfarshire, Aberdeenshire, and Dumbartonshire, 

 by Mr. A. Croall; at Bute, Arran, Donegal, the Dingle, Glen 

 of the Downs, and Galway, by Mr. R. Barrington; the Dublin 

 Mountains, by Mr. J. R. Kinahan; AVentworth, Yorkshire, by 

 Mr. J. Henderson; and at Chaigeley Manor, Lancashire, by 

 myself. A dwarf ovate-deltoid variety; fronds bipinnate. The 

 scales are pale, but two-coloured. 



'^^ 



Fig. 250.— Pinna. 



Ordeax^, Moore. (Fig. 250.) — Found on the Vv'est coast 

 of Scotland. The finely divided character of this Fern makes 

 it very elegant. As in micromera all its parts are small, but 

 it is larger and more slender than that variety. The pinnules 

 are from three quarters of an inch to one inch and a half in 

 length, having small, distinct, oblong, or occasionally slightly 

 falcate lobes, which are profoundly cut into smaller lobes or teeth. 



Cystopteroides, Willison, MS. — Found at "Whitby, York- 

 shire, by Mr. Willison, and considered by Mr. Moore to be 

 a form of angustijpinnulay but the pinnules are not so much 

 narrowed. 



