Non-papillate sporangia of P. alni showing nested proliferation.
Photo Gallery
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P. alni sporangia  |
P. cambivora sporangium with sympodial proliferation  Empty sporagium showing sympodial proliferation |
P. palmivora colony morphology on V8  Growth of P. palmivora on V8 agar |
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P. nemorosa hyphal swellings  ‘Blistered’ hyphal swellings in agar |
P. cactorum sporangium  P. cactorum sporangium |
P. cambivora bole canker  Fagus sylvatica bole canker |
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P. lateralis on Port Orford cedar  Typical decline of Chaemacyparis lawsoniana in Landrévarzec, France. |
P. palmivora oogonium  P. palmivora oogonium |
P. pinifolia on Pinus radiata  Pinus radiata, note grey and collapsed needle bases |
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Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
P. arenaria hyphal swellings  Catenulate, globose to subglobose hyphal swellings, some of them with radiating hyphae scale bar = 50 μm. |
P. alni lesion in alder, Illwald, France  P. alni lesion in alder, Illwald, France |