426 PALEONTOLOGY OF OHIO. 



The figure represents the only specimen found. The epidermal cover- 

 ing of the nucleus is covered with irregularly placed dots, as shown in 

 the figure. 



Locality same as last. 



I have, in the foregoing descriptions, given the more important of the 

 new forms thus far found in the thin shale bed near Rushville. Besides 

 these, however, there are many other plants which have not yet been 

 carefully studied. Among them are two species of Cordaites, one with a 

 very long, broad leaf, probably C. Robbii, Dawson, from the Devonian of 

 New Brunswick, and the other much narrower, with finer nervation. 

 There is species of Lepidodendron, similar to one found at Jackson, over 

 the lowest coal-seam, which is probably not new. There are numerous 

 fragments of a large form of Lepidostrobus, but no complete specimen of 

 a cone has yet been found. Leaves of Lepidodendron are very abundant, 

 some of which are of great length. There is a large form of Lepidophyl- 

 lum. An axis of a very long and curious cone, too indistinct to be well fig- 

 ured, indicates a new form. There is every reason to believe that further 

 explorations in this shale bed will reveal many additional plants. 



In conclusion, I wish to express my thanks to my esteemed friend, 

 Mr. L. Lesquereux, of Columbus, whose attainments and publications in 

 Palseontological Botany have conferred such great honor upon this de- 

 partment of science, for the kind interest he has taken in my work 

 and for the privilege of consulting his extensive and invaluable private 

 library. 



