ATUYIUU M I'l M X -I'CEM I \.\ . 



65 



termination being abrupt 



Pinnte short and very distant at 

 the base, and subopposite; from the middle of the frond alternate 

 and approximate. The four basal pairs of pinnre sterile, the 

 others boldly and copiously soriferous. Pinna? broadest at 

 the base, and nearly equal in width for half the length, then 

 suddenly and abruptly only half the width, yet again equal 

 in width to the apices, which are frequently dilated and 

 rounded more or less. Pinnules close together, touching wuthoiit 

 overlapping throughout the frond, the basal portion ovate- 

 oblong and conspicuously dentate, those on the iipper half of 

 the pinufc various in form, mostly broader than long, and only 

 dentate at their broad apices. A charming variety, for which 

 I am indebted, to Mr. Cooling. 



Fig. 350. — Portion of pinna. 



Fron1)OSu:m, Moore. (Fig. 350.) — Found at ^[ayford, in 

 Surrey, by Mr. Thomas ]\[oore; at Nettlecombe, in Somerset- 

 shire, by Mr. C. Elworthy; and at Ruthin, in Denbighshire, 

 by ]Mr. T. Pritchard. In this large compound variety the 

 fronds reach a length of three feet, and are very broad and 

 lanceolate, having wide approximate pinnro and crowded 

 pinnules. This variety differs in the crowded pinnules causing 

 it to have a very leafy appearance. The pinnpe are irregular 

 in their outline, and gradually narrow to a long tapering 

 point. The largest pinnules are an inch long, and three 

 eighths of an inch broad; the}'' are pyramidal in form, and 

 are pinnatifid nearly to the midrib. The lobes are blunt and 

 oblong-toothed, the basal anterior ones often bearing six or 

 more sori, arcuated in form. In the INIayford plant the 

 ?tipites and rachides are red. 



