MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 49 



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

 neriis, No. 04113. Thickness of hypan- 

 thium subject, thickness of bud-cone 

 relative. Coefficient of correlation, 

 0.7170 rb'0. 0259. 



Fig. 53. — Correlation in the buds of 

 O. rubrino-cis, Xo. 04137. Thickness 

 of hypanthium subject, thickness of 

 bud-cone relative. Coefficient of cor- 

 relation, 0.5397 ± 0.0354. 



— 1 — * 



Fig. 54. — Correlafion in the buds of Oenothera gigas. Length of ovary subject, length 

 of hypanthium relative. Coefficient of correlation, 0.6237 it 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 zt 0.0506. 



