Mar. 22, 1924 
Tissue Fluids of Indicator Plants 
907 
Table VII. —Physicochemical constants for species of the typical shadscale association- 
Continued 
Growth form and species. 
GRASSES 
Bromus tectorum L.... 
Bromus tectorum nudus Klett 
Richt. 
& 
Average. 
Sitanion hystrix (Nutt.) Smith. 
Average. 
Sitanion juhatum Smith. 
HERBS, OTHER THAN GRASSES 
Amsinckia tesselata A. Gray. 
Cheirinia repanda (L.) Link. 
Lappula occidentalis (S. Wats.) 
Greene. 
Sophia flip es (A. Gray) Heller .... 
Sophia viscosa Rydb. 
Sphaerostigma tortum (Lev.) A. 
Nels... 
Salsola pestifer A. Nels. 
Date. 
Freezing 
point 
depres¬ 
sion, 
A. 
Atmos¬ 
pheres 
osmotic 
concen¬ 
tration, 
P. 
Specific 
electrical 
conduc¬ 
tivity, 
K. 
Ratio, 
conduc¬ 
tivity, to 
depres¬ 
sion, 
K/A 
Chlo- 
rids 
per 
liter. 
Cl. 
1920 
June 
2 
1-52 
18.3 
0.0221 
O.OI45 
2 .2- 
May 
28 
X.20 
14.4 
.0215 
• OI 79 
June 
2 
I.05 
12.7 
.0244 
.0232 
2-5 
H 3 
13.6 
.0230 
.0206 
2-5 
May 
3 1 
1.78 
21.4 
.O292 
.0164 
June 
2 
1.70 
20.4 
.0285 
.0168 
1.74 
20.0 
.0280 
.0166 
May 
28 
1-30 
15-6 
7 
.0261 
.0201 
June 
1 
0.99 
12.0 
.0215 
.0217 
May 
3 i 
1.28 
I S -4 
.0283 
.0221 
.. .do., 
1 00 
12.1 
.0243 
.0222 
June 
1 
V 
1.42 
17.0 
.0190 
.0134 
May 
3 i 
1.40 
16.8 
.0242 
•oi 73 
do. 
I. 
12.6 
.0207 
.0107 
June 
5 
* D 
i -43 
17.2 
.0386 
7 1 
.0270 
2.1 
WASHES THROUGH THE SHADSCALE ASSOCIATION 
The constants for the individual species of the washes through the 
shadscale association appear in Table VIII. 
Table VIII. —Physicochemical constants for species of the washes through the shadscale 
association 
Date. 
Freezing 
point 
depres¬ 
sion, 
A. 
Atmos¬ 
pheres 
osmotic 
concen¬ 
tration, 
P. 
Specific 
electrical 
conduc¬ 
tivity, 
K. 
Ratio, 
conduc¬ 
tivity to 
depres¬ 
sion, 
K/A. 
1920 
May 
3 i 
i -33 
16.O 
0.0205 
O.O154 
June 
1 
i -39 
16. 7 
.0197 
.OI42 
1.36 
16.4 
.0201 
.0148 
May 
28 
1.23 
14.8 
.0192 
•0157 
J * I 3 
13.6 
.0193 
.0171 
May 
3 i 
1-45 
17-4 
.0219 
.0151 
i-i 5 
13.8 
.0224 
.0195 
July 
23 
1-34 
16.1 
.0222 
.0166 
May 
3 i 
i -73 
20.9 
•0435 
.0251 
June 
1 
1.68 
20.2 
.0423 
.0252 
I - 7 I 
20.6 
.0429 
.0251 
June 
1 
i -37 
16.5 
.0282 
.0205 
June 
2 
i -57 
18.9 
.0371 
.0236 
June 
1 
i*i 3 
x 3 .6 
.0262 
.0232 
May 
3 1 
1.23 
14.7 
.0243 
.0198 
July 
23 
i -37 
16.5 
.0208 
.0152 
May 
28 
0.89 
10.7 
Growth form and species. 
Chlo- 
rids 
per 
liter, 
Cl. 
SHRUBS AND HALE SHRUBS 
A rtemisia tridentata Nutt. 
Average. 
Chrysothamnus sp.. 
Do. 
Do. 
. Do. 
Do.. 
Sarcobatus vermiculatus (Hook.) 
Torr. 
Average. 
Tetradymia glabrata A. Gray. 
Kochia vestita S. Wats. 
herbs 
Iva axillaris Pursh. 
Marrubium vulgare L.... 
Nicotiana attenuata Torr. 
Rubia tinctorum L. 
2.2^ 
4.9 
4-9 
5 * 5 ' 
3-i 
