C. T. PRIME 



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Fig. 1. The distribution of maculate and immaculate forms of A. maculatum. The percentage of spotted 

 Leaves is shown as the darkened sector of a circle. The largest circles are based on over 100 counts, the 

 smaller on less than 100. Isolated records of spotted and unspotted forms are shown as the smallest black 

 or white circles. Sowter's northern limit for the species is given as a dotted line. 



