Bark cracks with black ooze in coast live oak, a symptom of P. ramorum canker.
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P. ramorum bleeding canker  |
P. megakarya chlamydospore 
Terminal chlamydospore of P. megakarya
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P. cambivora symptoms  Bleeding canker, European beech, OSU campus |
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P. alni in riparian alder, Germany  P. alni in riparian alder, Germany |
Basal canker on Port-Orford cedar  Basal canker on Chamaecyparis lawsoniana |
P. austrocedrae necrotic lesion in phloem  P. austrocedrae - necrotic lesion in phloem |
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P. siskiyouensis canker on Italian alder  Bleeding canker at the base of a tree and a sprinkler emitter (arrow) adjacent to the trunk |
P. nicotianae sporangia  Noncaducous sporangium showing ovoid shape and papillate condition. (Fitopatol. bras. 2005) |
Healthy Port Orford Cedar tree  Healthy Chamaecyparis lawsoniana trees |
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P. cambivora sporangium  Ovoid non-papillate sporangia with well-rounded base and simple sporangiophore |
Comparative gametangial morphology of Phytophthora Clade 5 species  Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015). |
P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |