DESCRIPTIVE CATALOGUE 



HORIZON. " Potton Sands," Lower Greensand ; but probably 

 derived from Wealden. 



LOCALITY. Potton, Bedfordshire. 



TYPE. Originally in William Heed's collection, and now in 

 the York Museum. 



Text-fig. 112. Bcnnettites inclutus (Carr.). External view of part of the 

 trunk showing the leaf-bases and the embedded cones. X . After 

 Curruthers. 



As I have not been able to see the original specimen, I cannot 

 supplement Carruthers's description of this species. It is 

 evidently a Bcnnettite*, having a single slender cylinder of wood 

 (Curruthers, 1870, pi. Ixiii, fig. 2), laterally extended leaf-bases, 

 and embedded cones, all entirely characteristic of this genus so 

 far as can bo judged without microscopic sections. The size of 

 the leaf-bases appears to be unusually small. This is evidently 

 not due to immaturity (if Wieland's deduction that the plants 

 fruited but once, aud that at the end of their lives, be true) for 

 the cones are conspicuous. 



