Photo Gallery

P. austrocedrae hyphal swellings in liquid media drawing Morphology of hyphae of Phytophthora austrocedrae, from Greslebin et al. 2007	P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica)	P. pluvialis symptoms on Douglas-fir P. pluvialis symptoms of red needle cast on Douglas-fir, western Oregon 2015
P. tentaculata oospores and antheridia Paragynous antheridium attached to oogonium with oospore	Comparative gametangial morphology of Phytophthora Clade 5 species Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015).	P. katsurae disease symptoms Infected chestnut tree with girdling canker on stem
Comparative gametangial morphology of Phytophthora Clade 5 species Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015).	P. cambivora sporangium with nested proliferation Empty sporagia showing internal nested proliferation	P. cactorum sporangia Broadly ovoid, papillate sporangia in water.
P. agathidicida lesion on kauri tree Gum oozing out of longitudinal lesion	P. pluvialis sporangium Sporangia showing typical ovoid shape and semi-papillate condition	P. siskiyouensis colony morphology on PDA Colony morphology on PDA at 14 days