Mar. 22 ,1924 
Tissue Fluids of Indicator Plants 909 
Table 
IX .—Physicochemical constants for species of the greasewood-shadscale 
association —Continued 
Growth form and species. 
Date. 
Freezing 
point 
depres¬ 
sion, 
A. 
1 
Atmos¬ 
pheres 
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 - COn. 
1020. 
Atriplex nuttallii S. Wats. 
May 
29 
3- I 7 
38.0 
O.0727 
O.0229 
. . .do. 
2.98 
35-8 
.0612 
.0205 
June 
8 
3-46 
41-5 
.0725 
.0209 
27.6 
June 
18 
3-39 
40.6 
.0610 
.0180 
22.6 
July 
27 
14.40 
169.3 
.1249 
.0086 
93-1 
Average. 
6c.0 
. 078 < 
.0182 
47.8 
Kochia vestita S. Wats. 
June 
18 
2.48 
29.7 
.0511 
.0206 
*T/ * u 
6.4 
July 
11 
3-35 
40.2 
.0604 
.0180 
4.4 
July 
18 
3-84 
46.0 
.0582 
.0151 
8.4 
July 
27 
3-93 
47.0 
.0662 
.0168 
14.4 
Average. 
3-40 
40.7 
.0590 
.0176 
8.4 
Allenrolfea occidentalis (S. Wats.) 
Kuntze. 
May 
1.87 
11 . c 
.0468 
.0250 
^y 
June 
12 
3-69 
44*2 
.0695 
.Ol88 
23-5 
June 
18 
3-32 
39-8 
.0658 
.0198 
17.4 
.. .do. 
.... 
3 - 3 i 
39-7 
.0648 
.0196 
15-4 
July 
11 
5 -i 7 
• 61.8 
.0700 
•0135 
16.5 
July 
16 
3-95 
47-3 
.0663 
.0167 
14.9 
Average.... 
3-55 
42.6 
.0639 
.0189 
17-5 
Dondialtorreyana (S. Wats.) Stand- 
ley. 
June 
12 
3-68 
44.1 
.0729 
.0198 
22.0 
June 
18 
2.78 
33-4 
.0581 
.0208 
II *5 
.. .do. 
.... 
2.79 
33-5 
.0606 
.0217 
13.0 
.. .do. 
... . 
2-55 
30.6 
.0573 
.0225 
10.9 
July 
16 
3 -11 
37-4 
•0575 
.0184 
12.3 
July 
18 
3-25 
38.9 
.0605 
.0186 
12.8 
July 
27 
3.85 
46.1 
.0619 
,0l60 
13.6 
Average. 
3- I 4 
37-7 
.0612 
.OI97 
13-7 
Artemisia tridentata Nutt. 
May 
29 
1.24 
14.9 
.0191 
.0152 
June 
18 
1.56 
18.7 
.0211 
•0135 
2.6 
Average. 
I .AO 
16.8 
. 0201 
. OIAA 
2 . 6 
Artemisia spinescens D. C. Rat. 
May 
20 
1 . 26 
1^.2 
.0228 
.0180 
Tetradymia glabrata A. Gray. 
June 
18 
i -93 
23.2 
•0354 
.0183 
9-5 
Tetradymia nuttallii T. & G. 
May 
28 
1.62 
10. < 
.0308 
.O29O 
. 0190 
Tetradymia spinosa H. & A. 
May 
29 
I . AQ 
x y • 0 
18.0 
.0194 
. 0143 
Chrysothamnus sp. 
do. 
I.46 
17-5 
Chrysothamnus nauseosus (Pursh) 
. 0209 
Britton. 
July 
IA 
i . 66 
20.0 
.0261 
•0157 
PERENNIAL HERBS 
Oreocarya sp. 
May 
20 
0.88 
10.6 
.OI78 
. 0203 
y 
ANNUAL HERBS 
Cheirinia sp. 
May 
20 
1 . 02 
12 . 2 
. 0191 
. OI94 
Do. 
May 
28 
O. OA 
II . “2 
. Ol6l 
. 0172 
Cheirinia asperrima (Greene) Rydb. 
May 
29 
w • y*r 
0.92 
II. I 
.0164 
.0177 
i -7 
ir. 
<L 
1 
i 
•S 
1 
.1 
•** 
3 
.. Ho 
I. i e 
13.0 
. 02 K 7 
.0223 
Thelypodium elegans Jones. 
...do. 
0.89 
0 • y 
10.8 
Thelypodium macropetalum Rydb. . 
...do. 
0.88 
10.6 
.0211 
.O24I 
. 
85607—24 - 2 
