Fig. 40. P. alni subsp. uniformis. Fig. 41. P. alni subsp. multiformis German variant. Fig. 42. P. alni subsp. alni. Fig. 43.
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P. alni oogonia subspecies and variants |
P. chlamydospora chlamydospore Phytophthora chlamydospora chlamydospore in agar. Bar is 20 µm. |
P. austrocedrae - sporangia drawings Phytophthora austrocedrae. Morphology of sporangia. Bar: 25 mm. Greslebin et al. 2007 |
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P. cambivora colony morphology on MA Appressed stellate colony morphology at 14 days at 20°C on MA |
P. pinifolia colony morphology on PDA Colony pattern after 7 days on PDA at 24C, photo from Q-bank, used with permission. |
P. pluvialis symptoms on Douglas-fir P. pluvialis symptoms of red needle cast on Douglas-fir, western Oregon 2015 |
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Necrotic lesion in phloem caused by P. austrocedrae Necrotic lesion in phloem with resin pocket caused by P. austrocedrae |
P. ramorum leaf symptoms on tan oak Tip symptoms on tanoak seedling (Notholithocarpus densiflorus). |
P. pinifolia on Pinus radiata Pinus radiata needles, note “black line” symptom near needle bases |
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Growth of P. megakarya on PDA Growth of P. megakarya on potato dextrose agar |
P. lateralis colony morphology on PDA Growth morphology on PDA of Phytophthora lateralis |
P. tentaculata chlamydospore Terminal chlamydospore of P. tentaculata |


