MUTATIONS, VARIATIONS, AND RELATIONSHIPS OF THE OENOTHERAS. 37 



Fig. 14. — Correlation in the buds of Oenothera lamarckiana, 

 No. 04113. Length of ovary subject, length of bud- 

 cone relative. _Coef)ficient of correlation, 0.5720 i 0.035S. 



Fig. 15. — Correlation in the buds of Oenothera lamarekiana 

 from Hilversum. Length of ovary subject, thickness of 

 ovary relative. Coefficient of correlation, . 5997 ± 0341. 



