298 L. F. Ward—Mesozoie Dicotyledons. 
panions for the solitary Populus of Kome, he adds largely to 
the dicotyledonous flora of Atane. From 33 species in 1874 
this flora now rises to 95. In the seventh volume of the same 
work, which unfortunately must now be the last, a new Creta- 
ceous flora is announced, that of Patoot, also in Greenland, 
which is regarded as extreme upper Cretaceous. Dicotyledons 
here abound and no less than 74 species are made known in 
Heer’s work. ' 
Within the past few months an important paper has been 
contributed to the Royal Society of Canada by Principal Daw- 
son,” in which 30 species, mostly new, from two distinct hort- 
zons of the Cretaceous of British Columbia are described and 
figured. 
Lastly I am able to add to this enumeration one of the most 
important works that has ever n produced on vegetable 
again exhaustively reviews the entire subject of the Amer- 
ican Cretaceous flora, and we find the number of Dicotyle- 
dons thus far yielded by the Dakota Group to have tee 
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If we now turn from this strictly chronological enumeration , 
is sought to compare widely separated regions. The attempt — 
and North American Cretaceous can therefore at best only la 
p ‘ 
here made to correlate the sub-divisions of the European, Ar¢ eS 
claim to approximate accuracy. ae 
85 Transactions, pp. 15~34, pl. i-viii. 
t1G 
