L. Lesquereux—Rocky Mountain Lignitic Formation. 445 
by scarce remains in the Cretaceous; its preponderance in the 
vegetation of the Lignitic attests a more recent formation.* 
The Tertiary groups of Europe are not as yet clearly limited. 
Many of the Lignitic strata which have furnished remains of 
fossil-plants to European paleontology were at first referred to 
the Eocene. Unger, for example, places in this formation the 
fossil plants of Radoboj, in Croatia, of Haering, in Tyrol, o 
ung, of Sotzka, now referred to the Lower Miocene. 
everywhere in its flora, and when it is compared with that of 
some locality positively ascertained as Kocene in Europe, it in- 
dicates, too, points of identity remarkable enough. Such is the 
types of the Tertiary of Europe. Some of these pass, with the 
abal species, into the Miocene ; for, of course, the =. 
formations, as land formations, removed from the influence o 
p ma 
iti rds 
* Vegetable paleontology has not any more recent and more positive reco 
on this erat those furnished by Schimper (V’ eget. Pal., vol. ii, 1871). 
ee y i F. chameropifolia 
from the Eocene, and two, Flabellaria longirachis Ung., and #, chameropy 
Gépp, from strata considered as Cretaceous. Of these two na en pe 8 
that the first, from the length of its rachis, is evidently 4 typ? rs aang gone 
and that the other, whose rachis is unknown, cannot, on ¢ supa 8 cea 
tively referred to any . The author still describes twen rH a a ph 
palms in other genera, all from the Tertiary, mostly Eocene, an f 
all Tertiary. Admitting all the references 
48 exact, this makes sixty-seven species 
two from the Cretaceous. 
