272 Review of Saporia’s Work 
plants are merely Fucoids. The Silurian are marine species, — 
h a 
especially. The author records as terrestrial plants those 
evonian is mostly illustrated by species from Canada, — 
some of which are figured, from Dawson, in Dana's Manual of © 
Geolo 
The Carboniferous has its illustrations from European plants, — 
sures. 
lar to those of the present Gingko of Japa 
pan. : : 
In the Mesozoic (Mesophytic for the plants), the Trias has — 
few typical forms, and these are merely Ferns and Conifers, — 
contribution. No species are mentioned fro this country, 
where the Jurassic is not yet satisfactorily known by its plants. 
In this flora the Cycadew, Protophyllum, Zamites and Protozamiles, — 
are predominant, along with Ferns and Conifers of the Gingko 
type, Barera and Salisburia. 
For the Cretaceous the more important documents are taken — 
from North America and Greenland. Europe has few Cretace- 
