P. chlamydospora colony morphology on V8 agar
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P. chlamydospora colony morphology on V8 agar  |
P. frigida oogonium  Oogonium and oospore with amphigynous antheridium |
P. tentaculata oospores and antheridia  Paragynous antheridium attached to oogonium with oospore |
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Port Orford cedar seedlings  Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center |
P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
P. palmivora sporangia
 P. palmivora caducous papillate sporangia
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P. frigida symptoms 2  Symptoms of gummosis on black wattle |
P. alni in alder forest, Germany, with T. Jung  P. alni in alder forest, Germany, with T. Jung |
P. ramorum sporangium  P. ramorum sporangium |
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P. megakarya disease symptoms on Theobroma cacao
Symptoms of black pod disease of cocoa (T. cacao)
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Chlamydospore of P. lateralis  Terminal chlamydospore on a short side stalk |
Black pod disease of cacao caused by P. palmivora  Black pod of cacao in Ecuador caused by P. palmivora (see lesioned fruit on left). |