166 



POLYSTICIIUM ANGULARE. 





Fig. 144. 



AcuTUM-DissECTUM, Moove. (Fig. 144.) — Found at Marwood, 

 Devonshire, by tlie Rev. F. Mules; at Leith Hill, Surrey, by 

 Mr. II. Lavey; at Whitbarrow, in Westmorland, by Mr. F. 

 Clowes; at Barnstaple, by tlie late Mr. Charles Jackson; and at 

 Ncttlecombe, by Mr. Charles Elworthy. An acute-fronded Fern, 

 much dissected. Length two feet, width six inches; lanceolate, 

 apex attenuated. Stipes brief; stipes and rachis stout, densely 

 scaly on lower half of frond, and rufous above. Pinnos alter- 

 nate, approximate, the longest three inches in length, narrow 

 and attenuated. Pinnules stalked, narrow, elongated, and acute, 

 with an acute auricle. The inferior pinnules longer and more 

 spinous than the superior ones, the superior pinnules having 

 two and occasionally three spines, and the inferior ones five or 

 six. It grows to a large size, and is more lobate than the 

 variety Acutum. Texture thin. j\Iy thanks are due to Mr. 

 C. Ehvorthv, of Nettlecombe, for fronds. 



DirrusuM, Lowe. — Found near Littleham, in North Devon, 

 by the Rev. Charles Padley, of Bulwell Hall. This is the best 

 lax form I have yet seen. Very slender, eighteen inches in 

 length, and five inches in breadth. Pinnae lax, long, and 

 narrow; opposite below and alternate above. Pinnules, in basal 

 half of frond especially, very distant; in a pinna three inches 

 long only three pairs and an ultimate confluent portion; the 

 inferior pinnules somewhat longer than the suj^erior ones, very 

 long oval in form, entire, serrate, spinous at the apex, and a 

 spine where usually the auricular lobe is situated; this spine 

 is not at right angles to the lobe, as is usually the case, but 

 ascending and almost parallel with the edge of the pinnule. 

 Somewhat scaly. iMy thanks arc due to Mr. Padley for fronds. 



