Oogonium with paragynous antheridia applied close to the ogonial stalk.
Photo Gallery
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P. megasperma oogonium  |
P. cryptogea sporangium  Ovoid non-papillate sporangia in water. |
P. austrocedrae semipapillate sporangium  P. austrocedrae - semipapillate sporangium with off-center attachment. |
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P. alni lesion in alder, Illwald, France  P. alni lesion in alder, Illwald, France |
P. tentaculata chlamydospore  P. tentaculata chlamydospore with short hyphal projection |
P. nicotianae symptoms  Symptoms of gummosis on black wattle (Fitopatol. bras. 2005) |
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P. austrocedrae colony morphology on CMA  Colony morphology of P. austrocedrae at 16ºC after 4 weeks on CMA |
P. megasperma sporangium  Ovoid, non-papillate sporangia |
P. siskiyouensis oogonium with amphigynous antheridium  P. siskiyouensis oogonium with amphigynous antheridium |
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Dying Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees |
P. chlamydospora hyphal swellings  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. pluvialis on Pinus radiata  A Pinus radiata needle showing black resinous bands or marks consistent with the presence of red needle cast disease. |