82 



THE GEOLOGICAL HISTORY OF PLANTS, 



Erian and the Permian. They culminated, however, in 

 the Carboniferous period, and the coal-fields of southern 

 France have proved so far the richest in their remains. 



Lastly, a single specimen, collected by Prof. James 

 Hall, of Albany, at Eighteen-mile Creek, Lake Erie, has 

 the structure of an ordinary angiospermous exogen, and 

 has been described by me as Syringoxylon mirahile* 



Fio. 81. — Erian fruits, &c., some wymnospcnnous, and probably of Cordaites 

 and Taxine trees (St. John, J^ew BrunsAvick). a, (Jnrdvocarpum cor- 

 nutum. B, Cardiocarpum acutum. o, Cardiocarpum Crampii. d, Car- 

 diocarpum £aile>/i. e, Trigonocarpum racemosum. e>, e", Fruits en- 



o, Anmtlaria acuminata. 



larfTcd. F, Antliolithes Deco' icttg, 



terophyllitea aeiculark. n> Fruit of the same, k 



{i young of A.), l, Pinnul ia dispalaiis (probably a root) 



H, As- 

 Cardiocarpum 



This unique example is sufficient to establish the fact of 

 the existence of such plants at this early date, unless some 

 accident may have carried a specimen from a later forma- 



* « 



Journal of the Geological Society," vol. xviii. 



