very interesting examples of the stems known as Tyloden- 

 dron, which occur not infrequently in the Permian of that 

 Island, and of which he has found the leaves and probably 

 the fruit along with stems shewing markings and struc- 

 ture. 



FIG. 1. Dictyo-cordaites, Lacoi much reduced ; (a) venation of 

 leaf nat. size ; (6) seed and bract, enlarged. 



A short notice of Mr. Lacoe's remarkable specimen was 

 sent at once to the American Journal of Science, 1 but the 

 1 July, 1889. 



