708 BRITTLE RACES OF OENOTHERA LAMARCKIANA. 



6. , Ueber die Mutabilitat von Oenothera Lamarckiana mut. simplex, 



Zeitschr. Ind. Abst. 31 : 313-351. 1923. Gpeaa VII, p. 414. 

 7. , Ueber Sesquiplex-Mutanten von Oenothera Lamarckiana, Zeitschr. 



f. Bot. 15: 369-408. 1923. Opera VII, p. 451. 

 8. , Preferential fertilization in Oenothera Lamarckiana. Bot. Gaz. 77 : 



73-79. 1924. Opera VII, p. 546. 

 9. Vries, Hugo de, and Boedijn, K-, On the distribution of mutant characters 



among the chromosomes of Oenothera Lamarckiana. Genetics 8 : 233—238. 



1923. Opera VII, p. 509. 



(The Botanical Gazette, Vol. LXXX 1925, p. 262). 



