Non-papillate sporangia of P. alni showing nested proliferation.
Photo Gallery
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P. alni sporangia  |
P. alni subsp alni sporangium  Non-papillate, non caducous sporangium, photo used with permission from Q-bank |
P. austrocedrae oogonium  Oogonia with and without brown pigment, photo from Q-bank, used with permission |
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Growth of P. palmivora on CMA  Growth of P. palmivora on corn meal agar |
P. siskiyouensis canker on Italian alder  Bole lesions in the tissues under the bark of a bleeding canker: distinct margin between healthy and disease tissues |
P. boehmeriae symptoms  Symptoms of gummosis on black wattle (Acacia mearnsii) |
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P. pinifolia on Pinus radiata  Pinus radiata stand, note Defoliation and regrowth |
P. pinifolia on Pinus radiata  Dead needles on lower side of P. radiata branch. |
P. pseudotsugae colony morphology on V8  P. pseudotsugae colony growth on V8 agar |
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P. cinnamomi sporangium  P. cinnamomi sporangium |
P. ramorum sporangia  P. ramorum sporangia |
P. pluvialis sporangium  Sporangium showing typical ovoid shape and semi-papillate condition |