U. t K-- * 



■ 



.4 





«ri 



,^ Hj 



54. 



It 



r& 



Bw-X 



^^^y^^w^ 



Fig. 47. P.popiilimonilis. Galls collected at Veazie, Maine, July 27,1909. 

 Fig. 48. P. bursarius. Galls collected at Orono, July 12, 1911. 



