Thornless Blackberry and the Recreant Seedling 



At the left, a tgptcal stem of Mr. Burbank's thornless 

 blackberry; at the right, a thorny seedling. The thornless 

 blackberry almost invariably breeds true to thornlessness ; so it it to 

 be surmised that this seedling is the result of a chance fer- 

 tilization with the pollen of a thorny variety. 



