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Professional Paper 1650–F

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Atlas of Relations Between Climatic Parameters and Distributions of Important Trees and Shrubs in North America—Modern Data for Climatic Estimation from Vegetation Inventories

Table 2. Simplified unweighted mean temperature of coldest months in degrees Celsius (°C) for xeric assemblage.
Mean Temp.
Coldest Month		 Acacia greggii Cercidium floridum Cercidium microphyllum Cereus giganteus Chilopsis linearis Larrea tridentata Olneya tesota Opuntia fulgida Salix exigua Yucca elata Number of taxa  
-4.0 1 0 0 0 0 1 0 0 1 1 4  
-3.5 1 0 0 0 0 1 0 0 1 1 4  
-3.0 1 0 0 0 0 1 0 0 1 1 4  
-2.5 1 0 0 0 0 1 0 0 1 1 4  
-2.0 1 0 0 0 0 1 0 0 1 1 4  
-1.5 1 0 0 0 0 1 0 0 1 1 4  
-1.0 1 0 0 0 0 1 0 0 1 1 4  
-0.5 1 0 0 0 0 1 0 0 1 1 4  
0.0 1 0 0 0 1 1 0 0 1 1 5  
0.5 1 0 0 0 1 1 0 0 1 1 5  
1.0 1 0 0 0 1 1 0 0 1 1 5  
1.5 1 0 0 0 1 1 0 0 1 1 5  
2.0 1 0 0 0 1 1 0 0 1 1 5  
2.5 1 1 1 0 1 1 0 0 1 1 7  
3.0 1 1 1 0 1 1 0 0 1 1 7  
3.5 1 1 1 0 1 1 0 0 1 1 7  
4.0 1 1 1 0 1 1 0 0 1 1 7  
4.5 1 1 1 0 1 1 0 0 1 1 7  
5.0 1 1 1 0 1 1 0 0 1 1 7  
5.5 1 1 1 1 1 1 0 0 1 1 8  
6.0 1 1 1 1 1 1 1 0 1 1 9  
6.5 1 1 1 1 1 1 1 1 1 1 10  
7.0 1 1 1 1 1 1 1 1 1 1 10  
7.5 1 1 1 1 1 1 1 1 1 1 10  
8.0 1 1 1 1 1 1 1 1 1 1 10  
8.5 1 1 1 1 1 1 1 1 1 1 10  
9.0 1 1 1 1 1 1 1 1 1 1 10  
9.5 1 1 1 1 1 1 1 1 1 1 10 < Observed value = 9.7°C
10.0 1 1 1 1 1 1 1 1 1 1 10  
10.5 1 1 1 1 1 1 1 1 1 1 10  
11.0 1 1 1 1 1 1 1 1 1 1 10  
11.5 1 1 1 1 1 1 1 1 1 1 10  
12.0 1 1 1 1 1 1 1 1 1 1 10  
12.5 1 1 1 1 1 1 1 1 1 1 10  
13.0 1 1 1 1 1 1 1 1 1 0 9  
13.5 1 1 1 1 1 1 1 1 1 0 9  
14.0 1 1 1 1 1 1 1 1 1 0 9  
14.5 1 1 1 1 0 1 1 1 1 0 8  
15.0 1 1 1 1 0 1 1 1 1 0 8  
15.5 1 1 1 1 0 1 1 1 0 0 7  
16.0 1 1 1 1 0 1 1 1 0 0 7  
16.5 1 1 1 1 0 1 1 1 0 0 7  
17.0 0 1 1 1 0 1 1 1 0 0 6  
17.5 0 1 1 1 0 1 1 1 0 0 6  
18.0 0 0 0 0 0 0 0 0 0 0 0  

 

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Director, Geosciences and Environmental Change Science Center
U.S. Geological Survey
Box 25046, Mail Stop 980
Denver, CO 80225
http://gec.cr.usgs.gov/

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