MUTATIONS, VARIATIONS, AND REIvATlONSHIPS OF THE OENOTHERAS. 37 



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

 Xo. 04113. Length of ovary subject, length of bud- 

 cone relative. _CoefScient of correlation, 0.5720 ± 0.0358. 



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

 from Hilversum. Length of ovary subject, thickness of 

 ovary relative. Coefficient of correlation, 0.5997 i 0.0341. 



