FOSSIL FLORA. 27 



PLATE V. 



Fossil Fekns and Stems. 



Fig. I. A beautiful delicate plant, belonging to a family of which numerous species occur in the 

 coal deposits ; named, from the stellular form of the foliage, Asterophyllites. 



Fig. 2. A fern in coal-shale, from Yorkshire. {Sphenopteris trifoliata, of Jrtis.) 



Fig. 3. Another species of star-leaf plant {Annularia bremfolia), from the coal of Silesia. 



Fig. 4. A dicotyledonous leaf in sandstone, in a beautiful state of preservation ; from the 

 tertiary strata of CEningen. 



Fig. 5. A frond of a remarkable species of extinct fern {Cyclopteris orbicularis, of Brongniart) ; 

 from the coal of Shropshire. 



Fig. 6. An elegant fern {Pecopteris), from coal shale ; Newcastle. 



Fig. 7. A delicate plant {Sphenophylhim erosum, vel dentatum, of Sternberg), with wedge-shaped 

 pinnules, from the coal formation. 



Fig. 8. Portion of a stem, flattened by compression, of a species of Sigillaria {Sigillaria tesselata, 

 of Brongniart). From the coal of Yorkshire. 



Fig. 9. Fern {Pecopteris oreopteridis, of Brongniart) ; from the coal of South Wales. 



Figs. 10, & 11. Two specimens o? Asterophyllites in ironstone nodules, from Coalbrook Dale. 

 The white appearance is occasioned by a deposition of hydrate of alumina. 



