THE value of the cinchona tree (Cinchona Ledgeriana) as a source of quinine is common knowledge, but the considerable work undertaken by British medical officers in the past in making use of the ...

Today their efforts yield two important species of Bolivia: Yellow Bark cinchona (Cinchona calisaya) and Ledger Bark cinchona (Cinchona ledgeriana).

Modern cinchona enterprise in Java has aimed at the production of barks rich in quinine. With the lucky purchase from Mr. Ledger in 1865 of a packet of seeds of the now well-known Cinchona ...

CINCHONA, the plant which yields quinine, known under the name of “Jesuits' Powder” since 1655, was introduced into India about the years 1858 to 1862. ... C. Ledgeriana, and C. succirubra.

Cinchona bark does not contain either of these compounds, and the alkaloids in the bark bear no relation to them. Likewise, there is no evidence of cinchona being able to prevent or treat COVID-19.

Pre-Columbian people used its bark as a medicine while South American liberator Simon Bolivar adopted it in Peru's coat of arms, but the cinchona tree is ...

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Several well-grown cinchona plants belonging to a plant species considered extinct in Sri Lanka have been found after 150 years in Unanagala in the western slopes of Aliyagala Mountain Range in ...