Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic.
Photo Gallery
P. cactorum oogonium |
P. cinnamomi on Jarrah Dieback in Jarrah, Western Australia |
P. cactorum sporangia P. cactorum sporangia |
P. chlamydospora hyphal swellings Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. pseudosyringae hyphal swellings Sub-globose hyphal swellings in water |
P. ramorum zoospores Sporangium of P. ramorum releasing zoospores |
P. alni basal canker on European Alder P. alni basal canker on European Alder (Alnus glutinosa) |
Dead Port Orford Cedar trees Dead Chamaecyparis lawsoniana trees along road |
Phytophthora cactorum canker on beech tree Canker on Fagus sp. caused by Phytophthora cactorum. |
P. pluvialis symptoms on Douglas-fir needles Symptoms of red needle cast on Douglas-fir needles |
P. tentaculata sporangium Papillate sporangium of P. tentaculata |
Growth of P. megakarya on PDA Growth of P. megakarya on potato dextrose agar |