Oogonium with paragynous antheridia applied close to the ogonial stalk.
Photo Gallery
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P. megasperma oogonium  |
P. pinifolia sporulation  Sporulation on edge of hemp seed, photo from Q-bank, used with permission. |
P. siskiyouensis oogonium with amphigynous antheridium  P. siskiyouensis oogonium with amphigynous antheridium |
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P. lateralis on Port Orford cedar  Collar lesion on Chaemacyparis lawsoniana in Landrévarzec, France |
P. pseudosyringae colony morphology on V8  Colony morphology on V8 at 14 days |
P. palmivora oogonia  P. palmivora oogonia with antheridia |
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P. lateralis on Port Orford cedar  Atypical decline caused by aerial infections in Scaër, France |
Port Orford cedar seedlings  Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center |
P. pluvialis on Pinus radiata in New Zealand  A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion. |
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P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. frigida symptoms 2  Symptoms of gummosis on black wattle |