Cluster of small, angular to globose hyphal swellings formed in water
Photo Gallery
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P. cryptogea hyphal swellings  |
Growth of P. arenaria on half-strength PDA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on half-strength PDA |
Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
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P. siskiyouensis oogonium with amphigynous antheridium  P. siskiyouensis oogonium with amphigynous antheridium |
P. cambivora coralloid irregular hyphae  Coralloid irregular hyphae |
P. arenaria sporangia  Typical ovoid papillate sporangia of Phytophthora arenaria on V8 agar flooded with soil extract |
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P. pseudosyringae sporangium  Ovoid, semipapillate sporangia showing medium length pedicel |
P. nemorosa sporangium  Ovoid, semi-papillate sporangium showing medium length pedicel. |
P. pseudotsugae paragynous oogonium  P. pseudotsugae oogonium with paragynous antheridia, note the disrupted contents of the abortive oogonia |
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P. ramorum oogonium  Oogonium with thick oogonial wall, photo from Q-bank, used with permission |
P. cambivora sporangium with sympodial proliferation  Empty sporagium showing sympodial proliferation |
P. cambivora colony morphology on V8  Colony morphology on V8 at 14 days |