1 



THE BRIAN OR DEVONIAN FORESTS. 



49 



flora, which I was then preparing, and which was pub- 

 lished in 1871, under the name Sporangites Huronensis. 

 In 1871, having occasion to write a communication to 

 the "American Journal of Science" on the question then 



FiQ. 15. — Vegetation of the Devonian period, restored. Catamites, I^lo- 

 phi/ton, Zepiophleum, Zeptdodendron, Vordaites, SitjiUaria, Dadoxy- 

 loUy Aster oph'jllites, PlatypJiijUum. 



raised as to the sliare of spores and spore-cases in the ac- 

 cumulation of coal, a question to be discussed in a sub- 



