THE ASPLENIA 



79 



Incisum Claphamii (Fig. 42) is the best flat form, having 

 pinnae as much as three-quarters of an inch long, and so deeply 

 incised as to be almost bipinnate. This was found in 1859. 



^gi 



Fig. 40 

 Asp. trich. Harrovii 



Fig. 41. 

 Asp. (rich, incisum. 



Fig. 42 

 Asp. /rick, incisum Claphamii. 



Incisum triangulare, Lowe. — Found in 1863 ; is a good form 

 on slenderer lines. 



Inciso - crispatum Clementii. — Undoubtedly the finest in- 

 cisum yet discovered. It was found in the wall of a mason's 

 yard in Lancashire. The pinnae are beautifully cut, and deeply 

 overlap, forming a unique variety ; in Mr. H. Bolton's possession 

 at Warton, near Carnforth. 



Fig. 43. Asp. trich. incisum laciniatum (centre of frond). 



Incisum laciniatum, Stansfield (Fig. 43). — Found in Co. Clare by 

 A. Stansfield ; a laciniate incisum. 



