Broadly ovoid, papillate sporangia in water.
Photo Gallery
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P. cactorum sporangia  |
P. pluvialis on Pinus radiata needle  Clusters of sporangia emerge from stomata of an infected radiata pine needle. |
Growth of P. arenaria on CA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on carrot agar |
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P. lateralis on Port Orford Cedar  Horticultural planting of Port-Orford cedar, photo from USDA Forest Service, Dorena Genetic Resource Center |
P. austrocedrae irregular sporangium  P. austrocedrae - irregular sporangium with lateral attachment and swelling in sporangiophore |
P. cinnamomi sporangium  P. cinnamomi sporangium |
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P. katsurae oogonium  Micrograph of warty oogonium |
P. cambivora sporangium  Ovoid non- papillate sporangia |
P. pinifolia on Pinus radiata needles  Pinus radiata needles, note “black line” symptom near needle bases |
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P. cambivora disease symptoms  Dead and dying chinquapin infected with P. cambivora |
P. pinifolia on Pinus radiata  Pinus radiata stand, note Defoliation and regrowth |
P. pluvialis on Pinus radiata in New Zealand  A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion. |