P. siskiyouensis sporangium with lateral semi-papilla and subterminal, sub-basal insertion in the sporangiophore
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P. siskiyouensis sporangium  |
P. cambivora sporangium with internal extended proliferation  Empty sporangia showing internal extended proliferation |
P. pseudosyringae hyphal swellings  Sub-globose hyphal swellings in water |
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P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. frigida sporangia  Noncaducous sporangia showing ovoid shape and papillate condition |
P. cambivora oogonium  P. cambivora oogonium with antheridium |
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P. pseudosyringae sporangium  Ovoid, semipapillate sporangia showing medium length pedicel |
P. pluvialis - appearance of new growth  Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
Port Orford cedar seedlings  Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center |
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P. austrocedrae colony morphology on Tomato juice agar  Colony morphology of P. austrocedrae at 16 ºC after 4 weeks on Tomato juice agar |
P. frigida chlamydospore  Globose chlamydospores of P. frigida |
P. pseudosyringae sporangia  Ovoid, semipapillate sporangia showing sympodial development of sporangiophore |