76 FLORA OF THE MONTANA FORMATION. 
regarding its affinities. The drawing is probably accurate, but with- 
out the specimen I am unwilling to venture an opinion. The draw- 
ing is given in this place simply to call attention to the fact that a 
curiously lobed leaf was present at this place, in the hope that later 
collectors may look for it. Until then it can have no proper status. 
Habitat. — Goal mine on north fork of Dutton CreeK, near old stage 
road, Laramie Plains, Wyoming. Collected by Knowlton, Stautou, 
and Knight, July, 189G. (Specimen lost.) 
DISCUSSION OF THE MONTANA FLORA. 
In the introductory chapter the extent and distribution of the 
Montana flora was stated and a brief account was given of the early 
more or less conflicting views concerning it. The reasons for separat- 
ing this account of the plants from that in my proposed monograph on 
the Laramie and related formations were also given. The systematic 
enumeration of the plants themselves has been given in the imme- 
diately preceding pages, and it now remains to discuss briefly the 
apparent affinities of the Montana flora and the conclusions that may 
be drawn. 
The flora of the Montana formation, as at present known, embraces 
89 forms, distributed among the plant groups as follows: Algre, 2 
species; Pteridophytes, 10 species; conifers, 10 species; monocotyledons, 
4 species; dicotyledons, G3 species. These plants have been afforded 
by five localities, among which they are distributed as follows: Point 
of Pocks, Wyoming, 58 forms; coal mine on north fork of Dntton 
Creek, Laramie Plains, Wyoming, 14 species; Harpers Station, on 
the Union Pacific Railroad, Wyoming, 6 species; Dunn's ranch, 6 
miles east of Harpers Station, 3 forms; Coalville, Utah, 10 forms. 
Of the 89 species or forms comprising this flora, 28 are described as 
new to science, and 10 forms have not been named or identified specific- 
ally, leaving 51 forms previously named. It appears that 29 of these 
51 species are found outside the limits of the Montana formatiou, 
leaving, therefore, 22 forms as peculiar. 
Turning now to the 29 species enjoying an outside distribution, we 
find that 2 (Pinus Quenstedti and Brachyphyllum macrocarpum) have 
been found also in the Dakota group; 2 (Geinitzia formosa and Brachy- 
phyllum macrocarpum) in the Amboy clays of New Jersey; 1 (Salix an- 
gusta) in the Livingston beds of Montana and the Green River group at 
Fairmont, Colorado; 1 (SabaMtes Gray anus) in the Eo Lignitic of Mis- 
sissippi; 8 (Ficas asarifolia, Ficus irregularis?. Magnolia tenuinervis, 
Podogonium americanum, Pterosper mites Wardii, Rhamnus salicifolius, 
and Viburnum? problematicum) at Black Buttes, Wyoming; L (Quercus 
Lesquereuxiana) at Carbon, Wyoming; 1 (Fucus lignitum) in the lowest 
Fort Union beds, near the mouth of the Yellowstone River, in Mon- 
tana; 4 (Magnolia tenuinervis, Cor mis impressa, G. Studeri, and Garpites 
triangulosus) in the Denver beds; I (Halymcnites major) common from 
