PLATE 43 
Diaporthe phaseolorum: 
A. —A vertical section through a pycnidium from the leaf. X130. 
B. —A vertical section through a pycnidium from a pod showing the beak and the 
thickened dark wall surrounding it. Note also conidiophores arising from hyalin inner 
ayer. Some spores are attached. X130. 
C. —A vertical section through the epidermis and underlying host of a portion of a 
diseased pod showing the connection and chambering of the pycnidia. X65. 
D. —A somewhat diagrammatic drawing of a portion of the surface of a Lima bean 
pod, showing the distribution of the perithecia, the shape of the beaks and their pro¬ 
jection from the surface. The beaks of two perithecia may be seen just breaking 
through the epidermis. X16. 
E. —A surface view of a portion of a bean pod showing arrangement of the pycnidia 
and fusion of the beaks. X65. 
F. —A vertical section through a perithecium from a pod. Note the dark wall 
surrounding the perithecium in which the asci are inclosed; also the portion of the 
beak buried below the surface of the pod. The outer end of the beak has been cut 
away. Xi3o- 
