Sporangia of P. lateralis showing internal and external proliferation
Photo Gallery
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P. lateralis sporangia  |
P. cinnamomi hyphal swelling  P. cinnamomi hyphal swelling (or thin walled chlamydospores) |
P. alni oogonia  Smooth-walled oogonium of P. alni (Swedish variant) with oospore and amphigynous antheridium. |
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Healthy Port Orford Cedar tree  Healthy Chamaecyparis lawsoniana trees |
P. ramorum zoospores  Sporangium of P. ramorum releasing zoospores |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |
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P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
P. arenaria sporangia  Typical ovoid papillate sporangia of Phytophthora arenaria on V8 agar flooded with soil extract |
P. alni in alder, Illwald, France  P. alni in alder, Illwald, France |
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P. nemorosa sporangia  Ovoid, semi-papillate sporangia showing sympodial development of sporangiophore |
P. siskiyouensis canker on Italian alder  Bole lesions in the tissues under the bark of a bleeding canker: distinct margin between healthy and disease tissues |
P. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |