166 BOTANICAL GAZETTE [FEBRUARY 
formed, shoots begin to grow out of the notches, and now a remark- 
able change occurs. Fig. 12 shows the same leaf as fig. 11, 10 days 
o.—Large and very small pieces, each with one notch cut from one leaf; 
eee pieces have not yet formed shoots (in 4 weeks); parallelism between size of 
leaf and size of shoot obvious. 
