Photo Gallery

P. megasperma sporangium Ovoid, non-papillate sporangia	P. austrocedrae colony morphology on Tomato juice agar with B sitosterol Colony morphology of P. austrocedrae at 16 ºC after 4 weeks on Tomato juice agar with B sitosterol	P. cambivora colony morphology on PDA Appressed colony morphology at 14 days at 20°C on PDA
P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica)	P. alni oogonia Smooth-walled oogonium of P. alni (Swedish variant) with oospore and amphigynous antheridium.	P. agathidicia sporangia Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores
P. lateralis on Port Orford Cedar Horticultural planting of Port-Orford cedar, photo from USDA Forest Service, Dorena Genetic Resource Center	Phytophthora taxon Agathis bole canker Kauri tree in New Zealand with disease symptoms	Growth of P. megakarya on PDA Growth of P. megakarya on potato dextrose agar
P. cambivora sporangium with nested proliferation Empty sporagia showing internal nested proliferation	Chlamydospore of P. lateralis Terminal chlamydospore on a short side stalk	P. tentaculata disease symptoms on California mugwort Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant).