No. 560] GENETIC AL STUDIES ON (ENOTHEBA 455 



which throws off in successive generations marked vari- 

 ants which hold true when self-fertilized. 



A plant, 11.41™, was selected as being representative 

 of the F 2 dwarfs from etiolated rosettes (Davis, '12a, 

 p. 413) and, being selfed, became the parent of an F„ gen- 

 eration (culture 12.53). The stunted growth and irregu- 

 lar branching characteristic of these dwarfs was well il- 

 lustrated by this plant, 11.41/77 (Fig. 1), as was also the 

 varied form of the leaves (Fig. 2). The peculiarities of 

 the etiolated rosettes from which the dwarfs come are 

 well shown by the two plants at the bottom of Fig. 4. 



