First Report of Crown Rot Caused by <i>Phytophthora tropicalis</i> on Gloxinia in North Carolina

Fig. 4. Oogonium, antheridium, and oospore of Phytophthora tropicalis that formed on rapeseed-extract malt agar.



Image from Plant Health Progress article:
First Report of Crown Rot Caused by Phytophthora tropicalis on Gloxinia in North Carolina