42 MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 



Fig. 28. — Correlation in the buds of O. 

 lamarckiana, 0.4129. Thickness of 

 ovary subject, thickness of hypan- 

 thium relative. Coefficient of cor- 

 relation, 0.5579 ± 0.0370. 



Fig. 29. — Correlation in the buds of Oeno- 

 thera lamarckiana. No. 041 13. Thickness 

 of ovary subject, thickness of hypan- 

 thium relative. Coefficient of correlation, 

 .5565 ± 0.0367. 



Fig. 30. — Correlation in buds of Oenothera 

 lamarckiatia from Hilversum. Thick- 

 ness of ovary subject, thickness of bud- 

 cone relative. Coefficient of correla- 

 tion, 0.5691 ±0.0360. 



Fig. 31. — Correlation in the buds of Oenothera 

 lamarckiana, Xo. 04129. Thickness of ovary 

 subject, thickness of bud-cone relative. 

 Coefficient of correlation, . 6506 ± . 0309. 



