angles are furnished with a narrow lining, or margin-like 

 marking ; vascular bundles situate nearly in the centre 

 of the cicatrice , and denoted by three crescent-shaped 

 markings, two of which are exceedingly small and ver- 

 tically placed, while the third is comparatively large, 

 and laterally placed between the other two. 



Invested with its bark-like integument, the trunk 

 shows no trace of cicatrices ; but the position of the 

 vascular bundles is denoted by a strongly tumid tubercle, 

 which imparts to the fossil impression, in this condition, 

 the appearance of a Stigmaria. The cortex, itself, is 

 very thin, notwithstanding the prominence of the tu- 

 bercle. The prototypes of Corda's and Sternberg's figures 

 Avere evidently deprived of this integument, which, we 

 believe, has hitherto remained undescribed. 



Our specimen, it should be observed, which is 

 most distinctly and beautifully impressed, indicates the 

 lining-like marking on each of the four lateral sides of 

 the cicatrice; — whereas both Sternberg and Corda have 

 represented one of these sides i as destitute of this 

 marking. 



Although this disparity may, perhaps, be a matter 

 of little importance, it may be easily accounted for from 

 the fact that the scars of this species, are so delicately 

 marked, that the slightest indistinctness of a fossil im- 

 pression, would obviously lead to the conviction of both 

 of these distinguished naturalists: — indeed, in the 

 present instance, careful observation is requisite in order 

 to trace this marginal developement. 



Sternberg's second figure 2 of a fossil impression, re- 

 ferred to this species, agrees most perfectly with Brongn- 



1 vid. c , fi(j. 



2 Sternb. Vers. II, pi. 38, fig. 2 a. 



