MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 49 



Fio. 52. Correlation in buds of O. rubri- 

 nervis, No. 04113. Thickness of hypan- 

 thium subject, thickness of bud-cone 

 relative. Coefficient of correlation, 

 0.7170.'0.0259. 



FIG. 53. Correlation in the buds of 

 O. rubrinervis, No. 04137. Thickness 

 of hypanthium subject, thickness of 

 bud-cone relative. Coefficient of cor- 

 relation, .5397 0.0354. 



FIG. 54. Correlation in the buds of Oenotliera gigas. Length of ovary subject, length 

 of hypanthium relative. Coefficient of correlation, 0.6237 0.0432. 



FIG. 55. Correlation in the buds of O. gigas. Length of ovary subject, length 

 of bud-cone relative. Coefficient of correlation, 0.5338 0.0506. 



