200 



POLYSTICHUM ACULEATUM. 



Elworthy. The distinction consists in the apex of the frond 

 dividing into a spreading tuft of branches. My thanks are 

 due to Mr. Wollaston for fronds. It is unnecessary to give an 

 illustration. 



Fig. 158. 



MicACEUM, Mules, MSS. (Fig. 158.)~Found at the foot 

 of Showlesborough, (a lofty hill) near Barnstaple, by the Rev. 

 F. Mules, of Marwood. This plant is said only to grow on a 

 micaceous soil, hence its name. A dwarf form, narrow, piunse 

 almost as broad as long; in the basal pair of pinnae there is a 

 somewhat circular lobe that is distinctly stalked, in the next pair 



