178 



[Vol. 10, 1923] 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Explanation of Plate 



PLATE 13 



Figs. 1 and 2. Perithecia of Diaporthc Sojae. Photomicrograph of a section 

 through a stroma containing imbedded perithecia. The material for sectioning 

 was taken from a culture growing on a sterilized petiole of soybean leaf. Photo- 

 graphs by Mr. A. F. Camp. 



