50 MUTATIONS, VARIATIONS, AND RELATIONSHIPS O^ THE OENOTHERAS. 



Fig. 56. — Correlation in the buds of Oenothera gigas. Length of 

 ovary subject, thickness of ovary relative. Coefficient of corre- 

 lation, 0.6360 ±0.0421. 



Fig. 57. — Correlation in the buds of Oenothera gigas. Length of hypanthiura 

 subject, length of bud-cone relative. Coefficient of correlation, 0.5273 

 ±0.0510. 



