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Picture library: 36963

BULGARIA INQUINANS . A portion of affected Quercus coccinea bark open to reveal the pycnidial stroma which has developed in its thickness ( right ) and ( on the left ) the gummy exudate which is often a result of this disease . From an artificially induced lesion . The first demonstration that this fungus causes disease in oak. Location: Sheffield Park , East Sussex , England .

Reference: 36963

BULGARIA INQUINANS . A portion of affected Quercus coccinea bark open to reveal the pycnidial stroma which has developed in its thickness ( right ) and ( on the left ) the gummy exudate which is often a result of this disease . From an artificially induced lesion . The first demonstration that this fungus causes disease in oak. Location: Sheffield Park , East Sussex , England .


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Credit line: Forestry Commission

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