miscellaneous: experimental teratosis 



577 



'%- ' 



Fig. 426.— Main axis from three plants of Begonia phyllomaniaca. Right and 

 left old proHierous shoots, center a young main axis nearly free from proliferations. 

 The left stem bore 425 shoots, the right stem 591. The longitudinal white stripes 

 are lenticels. Photographed March 27, 1918. X IM. 

 37 



