302 Burns andHedden, Conditionsof influencingregenerationofhypocotyl. 



location of biids, while the princii)al factor is determining the 

 location in relation to movement of food materials in plants. 



Conclusions. 



1. The young hypocotyls are capable of developing more 

 buds and in a shorter time than old ones. 



2. Moistiire is principal factor in formation of buds on unin- 

 jured seedlings of plants studied. 



3. In injured seedlings, the time and number of buds is de- 

 pendent upon light, moistm-e and heat. 



■4. The Position of buds is due indirectly to light, directly 

 to the movement of materials in plants. 



5. The base of old plants is predisposed to but production, 



6. Grood vegetative conditions are best for production of 

 buds on hypocotyl. 



University of Michigan, February 1905. 



