96 ENGLISH BOTANY. 



side of the pinnule immediately above the auricle. Indusium convex, 



slightly umbilicate, circular, denticulate at the margin, and soon 



shrivelling. Spores tuberculate, with rather large very prominent 



obtuse tubercles, intermingled with numerous smaller and more acute 



ones. 



Var. a. genuinum. 



Pinnules broad, spinous-serrate or inciso-serrate, not decurrent, 

 with their basal angle a right angle or more than a right angle. 



Yar. /3. hastulatum. Kunze. 



Pinnules broad, more or less deeply pinnatifid or pinnatipartite or 

 pinnate, not decurrent, with their basal angle a right angle or more 

 than a right angle. 



Yar. (?) y. alatum. Moore. 



Pinnules broad, faintly spinous-serrate, decurrent on the posterior 

 side, and united to the narrow wing along the rachis to the pinna, 

 with their basal angle a right angle or more than a right angle. 



Yar. 8. gracile. Wollaston. 



Pinnules narrow, inciso-serrate, not decurrent, with their basal 

 angle less than a right angle. 



On hedgebanks and in woods. Frequent in England. Rare in 

 Scotland, extending north to the counties of Berwick, Roxburgh, and 

 Ayr, and the Clyde islands ; it is also reported from Loch Gilphead, 

 Argyleshire ; but the only Scotch specimen I have seen is from the 

 Cumbraes, kindly sent me by Mr. Gr. Horn. It occurs throughout 

 Ireland, and is abundant in many parts of the west and south of that 

 island. Yar. /3, in various forms, is not uncommon in damp shady 

 situations in the south of England and Ireland. Yar. y, Selworthy, 

 Somersetshire, and near Ottery St. Mary's, Devonshire (Mr. Wol- 

 laston). Yar. 8, Devon, Somerset, and Ireland ; but it is rather a 

 monstrosity than a true variety. 



England, Scotland, Ireland. Perennial. Summer. 



Fronds 18 inches to 4 feet high or more, and 4 to 10 inches wide. 

 Stipes 2 to 6 inches long, containing 5 vascular bundles, as in 

 P. Lonchitis and P. lobatum ; but it is much more densely scaly, and 

 the scales are much brighter in colour, being reddish-brown instead 

 of dusky brown. The under side of the frond has more numerous 

 hair-like scales, and these are more persistent. The frond is much 



