{[Marraew] FLORA OF THE LITTLE RIVER GROUP NO. III 5 
species referred to it ranges higher, but in Eastern Canada it is confined 
so far as is known to the Devonian system and is especially common 
in the Upper Devonian. Sir William Dawson assigned four species as 
plants of this system A. Jacksoni Dn., A. Halliana, Gopp, A. Rogersi 
Lx. and A. obtusa Lx. In Prosser’s sections I find the following added, 
A. sphenophylloides Lx., A. Hibernicus, Forbes and A. minor, Lx. 
These three genera then specially mark the Devonian Age among 
the fossil plants of North America, Psilophyton, Lepidodendron (with 
small areoles) and Archæopteris. Aneimites or Triphyllopteris is less 
characteristic; it begins in the Silurian and extends into the Carbonifer- 
ous deposits. 
We give below Sir William Dawson’s list of the Devonian Plants of 
Eastern North America, and have added species described or cited by 
C. S. Prosser and D. P. Penhallow. But from this catalogue the fossils 
of the Little River plant beds are omitted. The four columns show the 
plants of the Silurian (of Gaspé) and three divisions of the Devonian. 
Sir William has noted the district where the several species have 
been found, but in the quotations from Prosser’s sections, the special 
Devonian group from which the plant came is more closely indicated. 
Thus G—Gaspé, N.Y.—New York, M—Maine (Perry Group); and 
further H—Hamilton Group, P—Portage, C—Chemung, Ck—Catskill. 
In considering the Devonian types the writer has not confined 
himself entirely to Sir William’s list,t but has used C. H. Prosser’s 
report on the Devonian sections in Eastern Pennsylvania and New 
York, (U.S. Geo. Surv. Bull. 120.), Prof. D. P. Penhallow’s comments 
on this flora,? and other sources of information. 

' Fossil plants of Devonian and U. Sil. formation of Canada, p. 85. 
2 Notes on Erian (Devonian) plants from N. York and Penn., Smithson Inst., 
U.S. Nat. Mus. 1893, p. 105. 
