PLANT STUDIES IN LYON COUNTY 
405 
of soil moisture, nor the high relative humidity demanded by 
the mesophytic or by the hydrophytie plants, they could travel 
directly over the prairie, and because of these qualities continue 
there. Birds flying over the prairie will drop such seeds of trees 
as they carry, any where, but the greater part, falling in un- 
suitable places perish. The less hardy vegetation survives only 
when it has a favored location. After obtaining a. footing in a 
stream valley the forest also may spread down stream by* the 
waters transporting the seed. 
STATISTICS OF FLOWERING PLANTS OF SYVERUD BLUFF. 
Sta. I 
Sta. II 
Sta. Ill 
Sta. V 
6 
er 
Cent 
o' 
er 
Cent 
o 
er 
Cent 
o' 
er 
Cent 
£ 
PS 
£ 
PS 
!? 
PS 
J25 j 
PS 
Number of species and per cent of 
grand total at each station 
Number of species and per cent of 
65 
40 
43 
26 
75 
46 
56 
34 
Station I’s total found in other 
stations 
16 
24 
20 
30 
11 
17 
The same in per cent of grand 
total of sppcips 
16 
10 
20 
12 
11 
7 
4 
Number of species and per cent of 
Station II’s total found in other 
stations 
16 
• 
37 
28 
65 
7 
16 
The same in per cent of grand 
total of sp^cios 
16 
10 
28 
17 
T 
4 
Number of species and per cent of 
Station Ill’s total found in other 
stations 
20 
26 
28 
37 
18 
24 
The same in per cent of grand 
total of sppcips 
20 
12 
28 
17 
18 
11 
Number of species and per cent of 
Station IV’s total found in other 
stations 
11 
19 | 
7 
12 
18 
32 
The same in per cent of grand 
total of species 
11 
7 
7 
4 
18 
11 
Total number of species not found 
in other stations _ 
33 
6 
28 
35 
zq 
Per cent of entire flora not found 
in other stations 
20 
3 
17 
21 
Per cent of flora of separate sta- 
tion not found elsewhere 
50 1 

14 

37 
62 
Total number of species collected 162 
Per cent of entire flora growing at all stations l.S 
Per cent of entire flora growing at three stations 8. 
Per cent of entire flora growing at two stations 26. 
Per cent of entire flora growing at only one station 63. 
