11. J 



ASPLENIUM MARINUM, Var. Interruptum. 



MONKMAN, MS. 



PLATE XLVIII. — A. 

 Anplenium — Sijleenwort. Marinum — Soa. Inicrruptttm — laterruptod. 



This plant was found along with the variety trapeziforme, 

 (of which it is a sport,) about four years ago, some five or six 

 miles north of Scarborough, on the high moorland cliff of that 

 very wild part of the Yorkshire coast. 



Like Asjilenium marinum, var. trapeziforme, the variety in- 

 terruptum has a somewhat more dwarf habit than that of the 

 normal form of the species. It is thick and leathery in texture, 

 whilst in general outline it is exactly analogous to Cijsptopteris 

 intcrrupta. 



Length of frond nine or ten inches; breadth in the normal 

 parts one inch and a half to one inch and three quarters. 



The pinnae are very irregular in form, some being much de- 

 pauperate, occasionally a mere midrib, and frequently wanting. 



Every frond varies, usually about half the pinna is of the 

 type of the variety trapeziforme. 



The venation resembles that in the normal form, except in 

 being confused in the depauperate portions, as is always the 

 case. Fertile. 



For fronds my thanks are due to Mr. C. Monkman, of Malton, 

 Yorkshire. 



