FOSSIL PLANTS. 431 



LEPIDODENDRON FORULATUM, Sp. nov. 



PI. xxiii, fig. 5 to 8. 



CICATRICES distant, oval, narrower and pointed at both ends, 

 wrinkled across ; leaf scar large, central, marked with three 

 distinct large vascular points, without medial line or appenda- 

 ges; corticated surface deeply undulate-wrinkled lengthwise, 

 marked by deep, narrow, equally distant furrows, separating the 

 cicatrices in vertical rows as in the genus Sigillaria. The de- 

 corticated surface, fig. 7 and 8, is regularly striate lengthwise 

 by narrow, nearly straight wrinkles, and has its cicatrices up- 

 raised or convex-rhomboidal, split from the central point down- 

 wards, by a deep narrow line. 



The peculiar furrowing of the surface of this species does not appear merely 

 casual. A disposition of this kind has already been observed, though not quite 

 as distinctly marked, in Lepidodendron costatum, Lesqx., described and figured 

 in the second volume of this Report. 



Found at St. Johns, in the roof shales of the main coal. 



LEPIDODENDRON Tuoui. Sp. nov. 



PI. xxiv, fig. 1 to 3. 



CICATRICES of the cortex proportionally small, ovate, long 

 pointed at both ends, separated by a flat irregularly wrinkled 

 border, about one line broad; leaf scar large, placed above the 

 middle, smooth, marked by its three vascular points, without 

 medial line or appendages; cicatrices of the decorticated sur- 

 face of the same form, smooth, merely marked in the middle 

 by a vertical line, fig. 3, (3 5 enlarged) . A small piece, fig. 2, 

 of the same, though taken from the largest part of the tree, 

 preserves the form and distance of the cicatrices as in the spe- 

 cimen of fig. 1. The coat of coaly matter covering the surface 

 is thin, smooth, and the place of the leaf scars is hardly indi- 

 cated on it. 



