Manuel Incra Mamani

Manuel Incra Mamani (? – 1871) was a Bolivian cascarillero (bark and seed hunter) from Coroico. He may have been of either Quechua and/or Aymara descent. Mamani found a cinchona tree species (Cinchona ledgeriana syn. C. calisaya) that had a higher proportion of quinine than most others. This species went into Dutch commercial cultivation, providing most of the world's quinine well into the 20th century.

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