This July 2, 2019 photo shows the Conservatory, located on Miami University's Hamilton campus in Oxford, Ohio. For more than a decade, an iboga tree grew inside The Conservatory. Inside the tree's roots is something called ibogaine , a controlled substance that causes a hallucinogenic reaction if consumed. Two Miami University professors are suspended and one staff member has been forced to resign over how the tree got there and how it was used. (Maia Anderson/The Cincinnati Enquirer via AP)
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