Pythium Root Dysfunction of Creeping Bentgrass

Fig. 15. Example of an intercalary lobate sporangia of P. volutum. Pythium volutum is not a prolific producer of sporangia in culture, therefore identification should focus on oogonial, antheridial, and oospore morphology.



Image from Plant Health Progress article:
Pythium Root Dysfunction of Creeping Bentgrass