THE FIRST FORESTS OF MODERN TYPE. 191 



I have dwelt principally on the phaenogamous plants of the 

 Cretaceous, as presenting the most noteworthy and new 



Fig. 156.— LinocU')u/ron/n'»t(erirvi (y^evtherry). A Cretaceous Tulip-tree. 



features of the time ; but we must not forget that though cryp- 

 togams were deposed from the high position they held in the 

 Palaeozoic, they still existed ; and there are more especially 



Fig. 157. — Onoclea sensibilis. Eocene. — ^After Newberry. 



many interesting species of ferns and c iiisetums in the Cre- 

 taceous and Eocene rocks. ThesQ are, however, of modern 



