P. megakarya sporangia
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P. megakarya sporangia (photo from Q-bank, used with permission).  |
P. cinnamomi on Banksia  Gretna Weste injecting Banksia with phosphonate |
P. lateralis sporangia  Sporangia of P. lateralis showing internal and external proliferation |
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P. agathidicia sporangia  Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |
P. lateralis on Port Orford cedar  Bole lesion on Chaemacyparis lawsoniana in Lopérec, France |
P. katsurae oogonium  Micrograph of warty oogonium |
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P. tentaculata disease symptoms on California mugwort  Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot |
P. cinnamomi sporangium  P. cinnamomi sporangium |
P. tentaculata oogonia and antheridia  Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata |
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P. agathidicida lesion on kauri tree  Gum oozing out of longitudinal lesion |
P. nicotianae symptoms  Symptoms of gummosis on black wattle (Fitopatol. bras. 2005) |
P. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |