304 



HISTORICAL GEOLOGY. 



among gymnosperms, and Ferns, Club- mosses, and Equi- 

 setce, among vascular cryptogams. Those orders were 

 anticipated in the Devonian, but culminate here. 



1. Conifers and Cycads. These are found as leafy 



FIG. 224. Araucarites gracilis, reduced. 

 (After Dawson.) 



FIG. 225.- C'ordaites. (Restored 

 by Dawson.) 



FIG. 226. 



FIG. 228. 



FIGS. 226-228. Fruits of coal-plants, probably conifers : Cardiocarpon. (After 

 Newberry and Dawson.) 



