FOSSIL PLANTS. 433 



LEPIDODENDRON? GREENII, Sp. nov. 



PL xxvii, fig. 7 and 8. 



CICATRICES distant and deeply marked, oval in outline, 

 pointed at the top, rounded at the base, marked under the 

 point by a round, deeply sunk leaf scar, bordered by an up- 

 raised ring, and marked by a single central vascular point, 

 thus resembling the scar of Syrigodendron. 



From the great distance of the cicatrices, which are placed in a quincunxial 

 order, and from the form of the leaf scars, it is presumable that this species 

 may helong to another genus, or that it is the type of a new one. 



Found by Mr. H. A. Green, in Mercer Co., Ills. 



LEPIDODENDRON RUGOSUM, Brgt. Brod., p. 85. 



Little Vermilion ; Dr. J. C. Winslow. 



LEPIDODENDRON GRACILE, Brgt. 



Veg. foss., 2, t. 15? 



LEPIDODENDRON ELEGANS, Brgt. 



Veg. foss., 2, t. 14? 



In the roof shales of the coal of Morris and of Colchester, there is an abund- 

 ance of small stems or branches of a Lepidodendron covered with short, linear, 

 lanceolate-pointed, flat leaves, referable, from the figures given by the author, 

 to the above-named species. These are considered by more recent authors as 

 identical with Lepidodendron abovatum, Sternb., the form of the cicatrices 

 being alike, and differing merely in size. Lepidodendron abovatum is also 

 found at Morris and Colchester with large cicatrices. 



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