Bui. 3 1 , U. S. Dept. of Agriculture. 



Plate V. 





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Fig. 1.— The Cardenche Shown in Figure 2 (Left-Hand Plant) in February 

 Immediately After a Freeze. 



Fig. 2.— The Same Plant (.on Extreme Left) in Late April, Showing Nearly 

 Complete Recovery from the Effects of the Freeze. 



EFFECT OF FROST ON CARDENCHE (OPUNTIA IMBRICATA). 



