Tag Archives: Taphrina occidentalis

Alder Cone Gall Fungus

This gallery contains 6 photos.

Alders along the shore of Manzanita Lake (Lassen Volcanic National Park) are heavily infested with alder cone gall fungus. Taphrina occidentalis is a sac fungus that induces flat, twisting galls on the bracts of alder cones. The cone bracts of … Continue reading

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