MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 45 



FIG. 40. Correlation in the buds of Oenothera ru- 

 brinervis, No. 04113. Length of ovary subject, 

 thickness of ovary relative. Coefficient of correla- 

 tion, 0.5957 0.0344. 



FIG. 41. Correlation in the buds of O. rubrinervis, 

 No. 04137. Length of ovary subject, thickness 

 of ovary relative. Coefficient of correlation, 

 0.3357 0.0495. 



FIG. 42. Correlation in the buds of Oenothera rubrinervis. No. 04113. Length 

 of hypanthium subject, length of bud-cone relative. Coefficient of correla- 

 tion, 0.3752 0.0458. 



