^.JT 



Mil left: liraiich showing fruiting of current year, and evidences of previ- 

 ous vear's fruiting. Note tlie white membrane (blister) pushing out 

 through swelling in bark. Courtesy of R. G. Pierce, Bureau of Plant 

 Industry, U. S. Dep. of Agr. On right: Specimen of lower branch of 

 P. flcxi'hs nine years old, three feet high. Has evidently fruited at least 

 once in previous years. Nursery P., July 2S, 1916. Original. 



