PLATE 8. 



Huds of ()enotlier;i himarckiana and four of its mutants, showing: characteristic differences and 

 variability, ist row at top, Oenothera lamarckiana; 2nd row, Oenothera ruhrinervis; 3rd 

 row, Oenothera lata ; 4th row, left, Oenothera gigas, right, Oenothera nanella. 



