224 



LASl'REA MONTANA. 



neai' Lake Gyrionedd, in North Wales, September l^tli., 1860, 

 and has been tested in the fernery at the Vale Nurseries, 

 Todmorden, and proves perfectly constant. The fronds are pin- 

 nate, the pinnae linear, very narrow, and terminating much more 

 abruptly than in the normal species. The rachis or midrib of 

 the frond frequently terminates in a horn-like projection near 

 the apex of the frond. The pinnules are very short, generally 

 only about one third of the length of those in the ordinary 

 form; they are deeply cut and serrated, and in this respect 

 the variety Noioelliana differs entirely from the normal type, 

 and indeed has quite as much the appearance of an Athyrium 

 as a Lastrea. The sori bold and conspicuous. The fronds 

 are from twelve to twenty-four inches in length. My thanks 

 are due to Messrs. Stansfield, of Todmorden, for the illustration. 

 Very characteristic fronds have been received from Mr. F. 

 Clowes, of Windermere; Mr. Swynfen Jervis, of Darlaston 

 Hall; and from Messrs. Stansfield, of Todmorden. 



Fig. 178. 



Interrui'TA, Monkman, MSS. (Fig. 178.) — At Dalby War- 

 ren, near Pickering, Yorkshire, Mr. Monkman has found a 

 depauperated or interrupted variety, which though apparently 

 well marked in the wild state, has not as yet proved constant 

 in cultivation. Mr. Monkman found a similar variety at 

 Eowness, which on removal returned to the normal form. My 

 thanks are due to Mr. Monkman for fronds, and more recently 

 to Mr. Stansfield, of Todmorden. 



