No. 547] GENETIC AL STUDIES ON (EN OTHER A 407 



expected, this cross was very similar to that just described 

 (11.35, grandiflora B X biennis D). The 195 plants 

 brought to maturity fell into two classes distinguished Im- 

 precisely the same groups of characters as in the previ- 

 ous cross. Class I with red papillate glands, etc., was 

 represented by 11 plants; Class II by 1S4 plants. Cer- 

 tain small differences of foliage, apparent only on close 

 inspection, together with the fact that no plant seemed 

 as favorable for my purposes as \\X)La, determined the 

 selection of the other culture (11.35) as the one upon 

 which to base further studies. 



3. grandiflora I X hiennis I) ( 1 1.37). The rosettes of 

 this cross (Fig. 14) were more like those of Lamarckiana 



plants were disappointing. The strain grandiflora I has 

 a strongly petioled leaf, and the stems bear dense clusters 

 of flowering side shoots. These characters appeared in 



