PLATE 1 
A. —Mature perithecium of Physalospora malorum on apple bark. 
B, C.—Portions of sporocarpsof P. malorum on currant bark; containing mature 
perithecia. 
D. —Pycnidium of P. malorum on apple bark. 
E. —Pycnidium of P. malorum on black raspberry from a pure culture from 
currant. 
F ; G.—Portions of sporocarps .of P. malorum on currant containing mature 
pycnidia. 
( 588 ) 
