rm. 



11 



^■m 



^ -^ 



\in 



iM.wrs oi nii: (;ivm mutant 



Its differcncf in habit frf.m Oenothera lamarckiana, the- parent form may b-J seen by companson 

 with fie 1 There are usuallv few si.lc- l^ranehes. the interno.les are short, and the large 

 .l.vi.lv erinklL-<l leaves tend U> hanj^ downward on the stem. The flmvers are larger an. 

 Ih'uds stouter than m the parent form. It has been found that the eells of this mutan 

 e..ntain twiee as many ehromosomes as those of the parent, a fact ^^''^•^•\l?^;'- ];^'';',;;*-„^" " ,^. 

 for the increased size and vigor of this sport. From a photograph km.lly loaned b> 

 Dr. ]i. M. Davis. (Fig. 5.) 



