iart's representation of Sigillaria Menardi, Brong. ' 

 from Wilkesbarre , Pennsylvania. If the identity of 

 Sternberg's figures be admitted , the identity of these 

 two modifications of Sigillaria can scarcely be denied. 



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

 hemia; in Pennsylvania. 



SYEINGODENDRON PES CAPREOLI , STERN B. 

 PI. II, fig. 3. 



Sternb. Vers. I, p. 24, ;;/. 13, fy. 2. 

 Unger, Gen. et Spec, p. 251. 



SYRINGODENDRON STRIATUM , 

 Brong. Class, vcget. foss. p. 20, pi. 1, Jig. 3. 



Trunk longitudinally, parallelly and regularly furrowed; 

 channels and ribs commensurate; cicatrices of a knot-like 

 appearance and nearly linear form, — twice as long as 

 wide, — situate, vertically, in the middle of the rib and 

 about ten lines remote from each other. 



Our fossil impression is invested with a thick, brittle 

 integument of lustrous bitumen , or mineral coal ; and 

 the cicatrices , unlike Sternberg's figure of this species, 

 appear where the specimen is denuded of this exterior. 

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

 hemia; in Pennsylvania. 



SYEINGODENDRON CYCLOSTIGMA, BRONG. 



PI. Ill, fig. 1. 



Brong. Hist, veget. foss. I, p. 480, pi. 166, Jigs. 2, 3, 

 Unger, Gen. et Spec. p. 251. 



Trunk longitudinally, slightly and regularly furrowed ; 

 surface delicately, vertically striate; cicatrices circular, 



> Brong. Hist, veget. foss. I, p. 430, pi. 158, fig. 5. 



