9 6 



DISEASES OF CULTIVATED PLANTS 



(P. Magnus) Ocdomyces leproides (Trabut). It was first 

 observed attacking beetroot, Beta vutgaris, var. rapacea, in the 

 grounds of the School of Agriculture, Rouiba, near Algiers. A 

 portion of a beetroot bearing this disease was once sent for 

 investigation to the Scientific Committee of the Royal 





FlG. 19. Urophlyctis leproides. i, diseased 

 beetroot, reduced. 2, spore, highly mag. 



Horticultual Society ; this is the only specimen of the disease 

 I have seen in England, in fact it could not be ascertained 

 with certainty where the particular beetroot in question was 

 grown, and it may possibly have been of foreign origin. 

 The upper portion of the root is the part attacked, large 



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