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

Fig. 3. Sporangia of Phytophthora tropicalis formed on an umbellate sporangiophore.



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