Ovoid, semipapillate sporangia showing medium length pedicel
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P. pseudosyringae sporangium  |
P. pinifolia colony morphology on V8  Colony pattern after 7 days on V8 at 24C, photo from Q-bank, used with permission |
P. alni oogonium  Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium. |
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P. alni basal canker on European Alder  P. alni basal canker on European Alder (Alnus glutinosa) |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
P. pseudosyringae oogonium  Oogonium with paragynous antheridium in agar |
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P. pinifolia on Pinus radiata needles  Pinus radiata needles, note “black line” symptom near needle bases |
P. tentaculata sporangium  Papillate sporangium of P. tentaculata |
P. agathidicia sporangia  Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |
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P. chlamydospora hyphal swellings  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. lateralis on Port Orford cedar  Dying Chaemacyparis lawsoniana trees in Lopérec, France. |
P. ramorum sporangium  Deciduous sporangium, photo from Q-bank, used with permission |