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THE AMERICAN NATURALIST [Vol. XLVII 



data on this race, prior to the summer of 1910. The 

 sport is characterized by a flattened, fasciated condition 

 of the stem and floral structures, and a consequent in- 

 crease in the number of leaves. The original mutant is 

 described by Dewey as possessing 152 leaves on the main 

 stalk, flowers abnormal, stem fasciated. When the ab- 

 normal plants were studied in more detail, many smaller 

 teratological features were found, and these were espe- 

 cially plentiful in connection with the floral structures. 

 The pistil frequently was incapable of functioning, be- 

 cause of various forms of tissue proliferation in the re- 

 gion of the stigma. The style was often shortened, coiled 

 or fused near its base with an anther (staminody of the 

 pistil). The ovary locules were very much increased in 

 number, ranging from two (extremely rare) to as high 



