given above. We are not confident that the form of 

 this cicatrice is a constant feature of the species ; but 

 our specimen certainly leads us to support the conviction 

 of Unger, who describes this cicatrice as rhomhea laevi. 

 Distribution , in coal formation : — at Eadnitz , Bo- 

 hemia; at Waldenburg, Silesia; at Jarrow Colliery, 

 England; in Ohio. 



LEPIDODENDRON DICHOTOMUM, STERNB. 

 PI. Ill, fig. 2. 



Sternh. Vers. II, ;j. 177, pi. 68, Jig. 1. 



Unger, Gen. et Spec. p. 253. 



Roemer , Leth. Geog. vol. 1, i)l. 8, Jig. 2. 



LYCOPODITES DICHOTOMUS, 

 Sternb. Vers. I, ;;s. 9, 19, 23, pis. 1, 2, 14, Jig. 1. 



LEPIDODENDRON STERNBERGII , 

 Brong. Prodr. p. 85; Lindl. and Hutt. Foss. Flo. vol. 2, ^j/. 112, 

 J}. 83. 



Areolae rhomboidal ; angles sharply defined ; superior 

 and inferior angles acute; cicatrice at the very apex of 

 the areola quadrilateral, — the superior angle of the 

 areola forming the superior angle of the cicatrice, and 

 two slightly curvilinear sides forming the angle whence 

 proceeds the central ridge, which is strongly marked, 

 but not traceable to the inferior angle of the areola. 



The figures of this species furnished by Lindley and 

 Hutton, differ from those of both Graf Sternberg and 

 Adolphe Brougniart, and also from our specimen, in 

 respect to the form of the scar, situated at the very apex 

 of the areola, which, in the figures alluded to, i assumes 



J Lindl. & Hutt. Foss. Flo. vol. 2, p. 83, pi. 112. 



