Mar. 22,1924 
Tissue Fluids of Indicator Plants 
905 
Other ligneous species are in general limited in occurrence to the 
edges of the washes, although very dwarfed sagebrush may occur sporadi¬ 
cally. A few ephemeral annuals which complete their growth relatively 
early in the season also occur. 
Because of the small number of species and the remarkably small 
variability of the type species, the Kochia association is the most uniform 
in appearance of any type of vegetation occurring in the valley. 
Table VI .—Physicochemical constants for species of the Kochia association 
Growth form and species. 
Date. 
Freezing 
point 
depres¬ 
sion, 
A. 
Atmo¬ 
spheres 
osmotic 
concen¬ 
tration, 
P. 
Specific 
electrical 
conduc¬ 
tivity, 
K. 
Ratio, 
conduc¬ 
tivity to 
depres¬ 
sion, 
K/A. 
Chlo- 
rids 
per 
liter. 
Cl. 
SHRUBS AND HALF SHRUBS 
1920 
. 
Kochia vestita S. Wats. 
June 
9 
I.96 
23.6 
0.0444 
0.0226 
4.4 
June 
15 
2.40 
28.8 
.0527 
.0220 
5-4 
.. .do.. 
2.58 
3 1 - 0 
.0589 
.0228 
7*5 
June 
17 
2.08 
25.0 
•0454 
.0218 
5-9 
.. .do.. 
i -59 
19.1 
.0372 
•0235 
2.7 
.. .do.. 
1.61 
19.4 
•0363 
.0225 
J«iy 
11 
4-05 
48.5 
•0593 
.OI46 
11.0 
July 
16 
3 - 7 1 
44-5 
•0556 
.OI49 
14.8 
Average.. 
2.50 
30.0 
.0487 
.0206 
7-4 
Artemisia tridentata Nutt. 
June 
9 
1.58 
19.0 
•0195 
. OI24 
1.9 
June 
15 
1.90 
22.8 
.0247 
.0130 
2.9 
.. .do.. 
... 
2.36 
28.4 
.0232 
.OO98 
3-6 
June 
17 
1.20 
14.4 
.0198 
.0165 
2.6 
.. .do.. 
,. .. 
1.24 
14.9 
.0203 
.0164 
2.5 
July 
11 
5 * 9<5 
71. 1 
6.3 
July 
16 
6.11 
72.9 
.0206 
.0033 
5-3 
July 
17 
2-73 
32.8 
.0237 
.0086 
3-8 
July 
28 
3-05 
36 .S 
.0218 
.0071 
3-9 
Average. 
2.90 
34-8 
.0217 
.0109 
3*6 
Atriplex confertifolia (Torr.) S. Wats. 
June 
15 
4 * 3 2 
5 i -7 
.0813 
.0188 
26.8 
Chrysothamnus sp.. 
June 
17 
1.14 
13-7 
.0228 
.0205 
2-5 
Chrysothamnus marianus Rydb. 
June 
15 
1.68 
20.2 
•0235 
.0140 
2-5 
Tetradymia glabrata A. Gray. 
1.89 
22.7 
.0321 
.0169 
8.6 
Tetradymia spinosa H. & A. 
June 
17 
1.41 
17.0 
•0353 
.0250 
2.4 
Sarcobatus vermiculatus (Hook.) 
Torr. 
June 
15 
1.96 
23.6 
•0453 
.0230 
3-7 
July 
11 
2.44 
29-3 
.0486 
.OI99 
8.8 
Average .. 
2.20 
26.5 
.0469 
.0215 
6.3 
HERBS 
Amsinckia tesselata A. Gray . 
.June 
9 
1.19 
14.3 
.0232 
• 0 X 95 
Camelina microcarpa Andrz. 
.. .do. 
1.28 
I tr. a 
. 0284. 
. 0222 
c .0 
Cleome serrulata Pursh . 
June 
17 
1.06 
* *T 
12.8 
.OI76 
.Ol66 
0.9 
. . .do. 
1.17 
14.1 
.OI9O 
.Ol6l 
i -3 
Average .. 
1.12 
13-5 
.OI83 
.O164 
1.1 
Eurotia lanata (Pursh) Moq .. 
June 
i 7 
i .43 
17.2 
.0270 
.O189 
2-3 
Lepidium pubicarpum A. Nels . 
June 
9 
1.29 
i 5-5 
.0241 
.Ol88 
2.0 
Poa sandbergii V asey . 
June 
17 
1.48 
17.8 
.0204 
.OI36 
3 • 1 
Sitanion hystrix (Nutt.) Smith . 
1.63 
19.6 
.0280 
.OI72 
3-4 
Sophia filipes (A. Gray) Heller. . . . 
June 
9 
i -55 
18.6 
.0218 
.0141 
2.1 
