Hft 



Buds of Oenothera lamarckiana and four of its mutants, showing- characteristic differences and 

 variability, ist row at top, Oenothera lamarckiana; 2nd row, Oenothera rubrinervis; yA 

 row, Oenothera lata; <|th row, left, Oenothera gigas, right, Oenothera nanella. 



HEUOTYPE CO., BOSTON 



