5oo 



PAL^EOBOTANY. 



the neighbourhood of Aix-la-Chapelle, and they consist of 

 numerous Ferns, Conifers (such as Cycadopteris), Screw Pines 

 (Pandanus], Oaks (Quercus), Walnut (Juglans], Fig (Ficus], 

 and many Proteacece, some of which are referred to existing 

 genera (Dryandra, Banksia, Grevillea, &c.) 



In North America, the Cretaceous strata of New Jersey, 

 Alabama, Nebraska, Kansas, &c., have yielded the remains of 

 numerous plants, many of which belong to existing genera. 

 Amongst these may be mentioned Tulip-trees (Liriodendrwi}, 

 Sassafras (fig. 397), Oaks (Quercus), Beeches (Fagus), Plane- 



Fig. 397. Cretaceous Angiosperms. a, Sassafras Cretaceum; b, Liriodendron 

 Meekii; c, Leguminosites Marcouanus; d, Salix MeekiL (After Dana.) 



trees (Platanus), Alders (Alnus\ Dog-wood (Cornus), Willows 

 (Salix}, Poplars (Popuhis), Cypresses (Cupressus), Bald Cy- 

 presses (Taxodiuni), Magnolias, &c. Besides these, however, 

 there occur other forms which have now entirely disappeared 

 from North America as, for example, species of Cinnamomum 

 and Araucaria. 



EOCENE PLANTS. The Plants of the Eocene period ap- 



AX 



