474 THE AMERICAN NATURALIST [Vol. XL VII 



larger leaves which were more strongly crinkled. The 

 plants from the 8 rosettes with narrow leaves also had at 



maturity smaller and narrower leaves; the flowers were 

 medium-sized (petals 2.5 cm. long). They constituted a 

 clearly defined group but could not be called dwarfs. It 

 is interesting to note that an F 2 type so clearly defined as 

 11-42Z may, nevertheless, be strongly heterozygous and 

 consequently may be very far from representing a stable 

 segregate in the F 2 . 



A remarkable plant, 11.42^', appeared in the F 2 from 

 10.30L& (Davis, 12o, p. 415, 11.42;) which in habit and 



