172 TETTNCI. 



case they assume the somewhat more definite form of transversely 

 elongated elliptical areas. "Were it not for the convexity of the 

 specimen, one might, perhaps, be inclined to regard it as a pith 

 cast showing impressions of medullary rays. It closely resembles 

 the stems referred to as Draccena Benstedtii. A very thin layer of 

 a mineral substance occurs on the surface of the stem. Eccles- 

 bourne. Rufford Coll. 



V. 2322. Part of a smaller stem than V. 3162 ; at one end 



it shows the same form of branching as in the figured specimen 

 (PL XII. Fig. 5). Just below the place of origin of the large 

 branch there is a smaller branch or lateral appendage. Inter- 

 rupted transversely running ridges and numerous circular and 

 elliptical scars constitute the surface features. Ecclesbourne. 



Rufford Coll. 



V. 2170. An impression of what seems to be the surface of 

 a stem, like V. 2322, etc. Ecclesbourne. Rufford Coll. 



Trunci, etc. (incertse sedis). 



V. 2807. Small specimen of some cylindrical structure ; surface 

 marked with irregular longitudinal ridges ; apparently crushed. 

 Mr. Rufford suggests that this may be the axis on which a 

 williamsonian fructification was borne. Ecclesbourne. 



Rufford Coll. 



V. 2259. Similar specimen, but more like some pith cast. 

 Cf. Fittonia insignis, Sap. (Pal. Franc,, vol. ii. pi. IvL). Eccles- 

 bourne. Rufford Coll. 



V. 2133. This specimen shows several more or less rhomboidal 

 scaly structures, which may be the petiole bases of a cycadean 

 stem. Ecclesbourne. Rufford Coll. 



V. 3237. Possibly the impression of a petiole base, showing 

 what appear to be the impressions of vascular bundles, and other 

 smaller black spots, which may be gum canals. Ecclesbourne. 



Rufford Coll. 



V. 2132rt. V. 3187. Ecclesbourne. Rufford Coll 



