Cylindrobasidium laeve

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By Roger Phillips

Published 2006

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Cylindrobasidium laeve (Pers. Chamuris) syn. C. evolvens (Fr.) Jülich syn. Corticium evolvens (Fr.) Fr. (illustrated 50% life size) Fruit body resupinate, 2–20cm across, margin fimbriate; on vertical surfaces the fungus may form small, delicate brackets up to 1.5×1cm; white, cream, or tan with white margin. Spore-bearing surface cream then pinkish-ochre, cracking when dry. Spores 9–12×6–7.5¼, pip-shaped; white. Cystidioles elongate, fusiform, thin-walled, intermixed with the basidia but seldom emergent. Hyphae distinct, with obvious walls and with clamp connections at the septa. Habitat on logs or fallen branches; all year. Frequent. Not edible. Note this fungus causes ‘fish-eye rot’ in stored apples.