616 



BACTERIAL DISEASES OF PLANTS 



Fig. 449. — 1, 2, and 4. Petioles developing shoots from trichomes at x, x. 

 X 8 circa. (5) Under surface of leaf showing rib trichomes developing shoots 

 at X, X. (3) No. 6, first series, a detail from Fig. 432; much cork on the lower of 

 the two stimulated internodes. 



