52 MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 



Fig. 60. — Correlation in the buds of Oenothera gigas. Thickness of ovary 

 subject, thickness of hvpanthium relative. Coefficient of cor- 

 relation, 0.8385 ±0.0210. 



Fig. 61. — Correlation in the buds of Oenothera gigas. 

 Thicknessof ovary subject, thickness of bud-cone 

 relative. Coefficient of correlation, 0.4750 ± 

 0.0747. 



Fig. 62. — Correlation in the buds of Oenothera gigas. 

 Thickness of hypanthium subject, thickness of 

 bud-cone relative- Coefficient of correlation, 

 0.4822 ±0.0543. 



