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P. nicotianae hyphal swelling

P. nicotianae hyphal swellings in water 100x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands)

P. pseudotsugae colony morphology on PDA

P. pseudotsugae colony growth on PDA agar

P. pseudotsugae sporangia

Broadly ovoid, papillate sporangia in water

P. ramorum colony morphology on V8

P. ramorum colony morphology on V8

Port Orford cedar seedlings

Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center

P. megakarya disease symptoms on Theobroma cacao fruit

Disease symptoms on a cocoa pod

P. alni oogonium

Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium.

P. pluvialis oogonium and antheridium

Oogonium and oospore with amphigynous antheridium

P. cambivora colony morphology on V8

Colony morphology on V8 at 14 days

P. cambivora coralloid irregular hyphae

Coralloid irregular hyphae

P. cambivora colony morphology on MA

Appressed colony morphology at 14 days at 20°C on MA

P. pluvialis symptoms on Douglas-fir needles

Symptoms of red needle cast on Douglas-fir needles

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