MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 43 



Fig. 32. — Correlation in buds of O. 

 lamarckiana .Ko. 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 Oenotliera 

 lamarckiana. No. 04129. Thickness of hy- 

 panthium subject, thickness of bud-cone rela- 

 tive. Coefficient of correlation, 0.5180 

 ± 0.0393. 



Fig. I'll. — Correlation in buds of O. lam- 

 arckiana from Hilversum. Thick- 

 ness of hypanthium subject, thick- 

 ness of bud -cone relative. Coefficient 

 of correlation, . 531'. ± . 0382. 



Fig. 35. — Correlation in the buds of O. 

 lamarckiana, Xo. 04113. Thickness 

 of hypanthium subject, thickness 

 of bud-cone relative. Coefficient 

 of correlation, 0.5005 ±0.0398. 



Fig. 36. — Correlation in the buds of Oenothera ruhrinervis , Xo. 04113. 

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

 efficient of correlation, 0. 2985 ± 0.0486. 



