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Podosphaera ferruginea
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Family: Erysiphaceae
[Alphitomorpha ferruginea Schltdl., more]  The New York Botanical Garden |
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  The New York Botanical Garden   The New York Botanical Garden  The New York Botanical Garden    The New York Botanical Garden    The New York Botanical Garden   The New York Botanical Garden     The New York Botanical Garden    |
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