1 



liiK Ml TAM AND ITS IVVKENT 



At the- Iffl a "Stewart Cuban" plant, at the riRht a plant of the n<Mnial Cuban tobaecofroni 

 which the former oriRinated suddenly in 1^09. Photograph taken August 1, V)U: the 

 normal type has already i)roduced a blossom, while the mutant dowers very much later. 

 The greater leaf yield of the mutant will also be noticed. (Fig. 12.) 



