28 FOSSIL COAL PLANTS. 



both allied to Lepidodendron. These casts are very abun- 

 dant in the conglomerate, where I have found them retain- 

 ing two of their coatings, the exterior of which is highly- 

 ornamented, but without distinct leaf scars. Its markings 

 bear considerable resemblance to those of the woody axis 

 of Sempervivum Canariense, figured by Sternberg. 



SIGILLARIA — BRONG. 



14. S. Saulii, Brong., Hist Veget. Foss., Tab. 151. 



15. S. Menardi, Brong., Op. cit.^ Tab. 158. 



Common, with foliage, in coal mines, Cuyahoga Falls. 

 Leaves long, linear, uni-nerved — plant always small, much 

 branched, perhaps creeping. 



16. S. Sillimani, Brong., Op. cit.. Tab. 147. 

 With foliage. Middlebury. 



17. S. Marineria, Hildreth, Amer. Jour. Science., Vol. xxxi. 

 p. 31. 



Cuyahoga Falls and Poland. 



18. S. grandis, {n. sp.) 

 Cuyahoga Falls. 



19. S. Biercei, {n. sp.) 



For this beautiful species, which resembles, somewhat, S. 

 Menardi in the form of the cicatrices, but which are about 

 six times as large, I am indebted to my friend L. V. Bierce, 

 Esq., of Akron, Ohio, whose name I have transferred to it. 

 Coshocton. 



20. S. acuminata, {n. sp.) 

 Cuyahoga Falls. 



21. S. centralis, {n. sp.) 

 Cuyahoga Falls. 



22. S. pulchra, {n. sp.) 

 Cuyahoga Falls, 



