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Mushrooms of Armillaria mellea, showing the ring (annulus) around the stem.

Armillaria mushrooms grow in clusters, have a ring (annulus) around their stem, and are tan to honey colored.; South Pasadena, Los Angeles County, CA Credit: Jerrold Turney, Los Angeles County; Dept. of Agricultural Commissioner
Mushrooms of Armillaria mellea, showing the ring (annulus) around the stem. Credit: Jerrold Turney, Los Angeles County; Dept. of Agricultural Commissioner
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