Dark Fungal Colonies Often Aren't Stachybotrys Chartarum, Yet Uncontrolled Dampness makes sure Months-Long Regrowth Cycles

https://www.anobii.com/en/0101871ccd7e1d023f/profile/activity

Not all black-colored mold is the toxic species Stachybotrys chartarum; many common household fungi appear dark