Bul. 380, U. S. Dept. of Agriculture. PLaTE XIII 
sey, >? re” * 
es en ERE er: 
reais 
_ Sa as 
VERTICAL SECTION OF THE Mavor ParRT OF A PYCNIDIAL 
STROMA. X 32. 
Paraffin section stained with Bismarck brown. 
ENDOTHIA SINGULARIS. 
