434 Wisconsin Academy of Sciences, Arts, and Letters. 
range extent of the species listed in table 1 with the exception 
of the mosses. 
Table No. 6. 
Kange of Species. 
Crypto¬ 
gams. 
Monocots. 
Dicots. 
Totals. 
NS E W. 
2 
16 
13 
31 
N E W. 
8 
15 
23 
N S E. 
4 
4 
8 
N E . 
1 
1 
6 
8 
N W. 
2 
1 
3 
S E . 
5 
17 
22 
S E W. 
1 
6 
7 
s W. 
0 
0 
0 
Introduced species. 
4 
' 
106 
It is noticeable that the plants which belong to the 1ST S E W 
range are about; evenly divided between monocots and dicots 
and that in totals there is little difference between the three 
range groups 1ST S E W, 1ST E W, and S E. 
Summarizing the above table and securing the total number 
of species of the four ranges 1ST, S, E, and W we have: 
Table No. 7. 
Monocots. 
Dicots. 
Totals. 
Northern. 
31 
39 
70 
Southern. 
26 
40 
66 
Eastern. 
35 
71 
106 
Western. 
27 
35 
62 
This shows that as a whole, the species of this marsh meadow 
are decidedly eastern with little difference between the other 
ranges. MacMillan finds that the vegetation of the Minnesota 
River Valley is decidedly southern and eastern in range and he 
points out that this is the result of the “geological, topograph¬ 
ical, and hydrographical southeasternness of the valley together 
with biological factors concerned with continental pressure 
tensions.” 
If we now compare the number of species from the north 
with those from the south, we find that the plants of H E W 
or those of distinctly northern range lead in number of species 
throughout the transect except in the complex Lycopus Carice- 
