MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 43 



FIG. 32. Correlation in buds of O. 

 lamarckiana, No. 041 13. Thickness 

 of ovary subject, thickness of bud- 

 cone relative. Coefficient of cor- 

 relation. 0.5910 .0.0346. 



FIG. 34. Correlation in the buds of Oenothera 

 lamarckiana, No. 04129. Thickness of hy- 

 panthium subject, thickness of bud-cone rela- 

 tive. Coefficient of correlation, 0.5180 

 0.0393. 



FIG. 33. Correlation in buds of O. lam- 

 arckiana from Hilversum. Thick- 

 ness of hypanthium subject, thick- 

 ness of bud -cone relative. Coefficient 

 of correlation, 0.5316 0.0382. 



FIG. 35. Correlation in the buds of O. 

 lamarckiana, No. 04113. Thickness 

 of hypanthium subject, thickness 

 of bud-cone relative. Coefficient 

 of correlation, . 5005 . 0398. 



FIG. 36. Correlation in the buds of Oenothera rubrinervis , No. 04113. 

 Length of ovary subject, length of hypanthium relative. Co- 

 efficient of correlation, . 2985 . 0486. 



