384 



GRASSES OF IOWA. 



Adel 



Ames 



Chatsworth, Big Sioux Valley 



Carroll, tops of hills 



Council Bluffs, Federal building 



Dalton, Floyd Valley 



Des Moines 



Dubuque , 



Keokuk 



Merrill , Floyd Valley 



Mason City 



New Albin 



Salix , Missouri river 



Sargent's Bluff, Missouri river 



Sioux City (low water), Missouri river 

 Sioux City (reservoir), Missouri river. 



Struble, Floyd Valley 



Westfield, Big Sioux Valley 



Temperature is influenced to a considerable extent by the condition 

 of the atmosphere. For instance, in 1898, Mr. Sage recorded clear, 

 partly cloudy, and cloudy days for the year as follows: 



Clear and Cloudy Days, 1898 and 1900. 



o 



for 1898 



Total clear days 



Total partly cloudy days 



Total cloudy days 



for 1900 



Total clear days 



Total partly cloudy days 



Total cloudy days 



189 

 87 

 89 



164 



111 



90 



Such grasses as Bouteloua oligostachya, B. racemosa, Schedonnardus 

 paniculatus, Buchloe dactyloides and Sporobolus cuspidatus are influenced 

 by the drier conditions prevailing in the western and northwestern part 



