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Dark spots (sporulation) gallery on Shroomok

contamination metabolites overlay abort mutation bruising side & bottom pinning

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Strange dark spots on mushrooms and mycelium — black, purple, brown. They typically appear when mushrooms mature and right after the veil tears. Spore dust spreads onto mycelium, mushroom caps and stems. Newbie growers often confuse this with black mold.

Dark spots (sporulation)