Establishing his binomial system In 1753, he further designated it as " Cinchona officinalis"
2.
The quinine bark tree ( " Cinchona officinalis " ) contains bitter substances to make the bark unpalatable.
3.
In 1820, French researchers Pierre Joseph Pelletier and Joseph Bienaim?Caventou first isolated quinine from the bark of a tree in the " Cinchona " genus-probably " Cinchona officinalis "-and subsequently named the substance.
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