Non-papillate, non caducous sporangium, photo used with permission from Q-bank
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P. alni subsp alni sporangium  |
P. ramorum chlamydospores  P. ramorum chlamydospores |
P. pluvialis on Pinus radiata in New Zealand  A stand of Pinus radiata trees affected by red needle cast disease. Note that frequently only the lower part of the crown is affected. |
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P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
Stain from Port Orford Cedar root disease  Stain from Chamaecyparis lawsoniana root disease on the Smith River |
P. lateralis colony morphology on PDA  Growth morphology on PDA of Phytophthora lateralis |
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P. kernoviae sporangia  Mycol.Res 109, 853-859; Figs 18-22. Regular, ovoid limoniform sporangia. Figs 23-26. Asymmetrical or sporangia |
P. alni in riparian alder, Germany  P. alni in riparian alder, Germany |
P. pinifolia colony morphology on V8  Colony morphology of P. pinifolia at 20°C on V8 after 3 weeks. From Duran et al. 2008 |
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P. cinnamomi hyphal swelling  P. cinnamomi hyphal swelling (or thin walled chlamydospores) |
P. siskiyouensis canker on Italian alder  Phytophthora collar rot on Italian alder trees: an isolated bleeding canker on the trunk |
P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand heavily impacted by root and collar rot caused by P. alni |