Differentiating <i>Phytophthora ramorum</i> and <i>P. kernoviae</i> from Other Species Isolated from Foliage of Rhododendrons

Fig. 14. Phytophthora syringae (A) oospore; (B) sporangium. Bar = 10 μm.



Image from Plant Health Progress article:
Differentiating Phytophthora ramorum and P. kernoviae from Other Species Isolated from Foliage of Rhododendrons