456 THE AMERICAN NATURALIST [Vol. XLVII 



From the F 2 dwarf, 11.41 ra, 243 seeds, the con- 

 tents of a single selfed capsule, were sown (culture 

 12.53). These produced 116 seedlings, the leaves 

 of which, following the cotyledons were strongly 

 etiolated in the lower half in the manner character- 

 istic of these dwarfs; 69 rosettes were potted and car- 

 ried to an advanced stage of development; 48 plants 

 were brought to maturity. The rosettes were all etio- 

 lated, in some cases over three fourths of the basal por- 

 tion of the leaves, in others somewhat less; the leaves 

 were narrow and long-petioled. The F 3 generation 

 (culture 12.53), from the F 2 dwarf, 11.41ra, was then ab- 

 solutely true to the characters of the etiolated rosettes, 

 one of which is shown in Fig. 4, 12.53a. The 48 plants 

 brought to maturity presented the dwarf habit with ir- 



