Cowberry Redleaf

Exobasidium vaccinii

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By Roger Phillips

Published 2006

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Cowberry Redleaf Exobasidium vaccinii (Fuckel) Woronin (illustrated 80% life size) Fruit body forming a whitish or pinkish, powdery, spore-bearing layer on gall-like, thickened, distorted leaves and shoots. Spores 10–20×2.5–5¼, elongate, becoming 3-septate at maturity; white. Habitat leaves and young shoots or flowers of members of the Ericaceae, especially Vaccinium; late spring to autumn. Occasional. Not edible.