Cinchona Totaquina required a minimum of 70% crystallizable alkaloids of which at least 15% was to be quinine with not more than 20% amorphous alkaloids. There are at least 24 species recognized by botanists. There are likely several unnamed species and many intermediate forms that have arisen due to the plants' tendency to hybridize. Cinchona Cinchona is a genus of flowering plants in the family Rubiaceae containing at least 23 species of trees and shrubs. They are native to the tropical Andean forests of western South America. A few species are reportedly naturalized in Central America, Jamaica, French Polynesia, Sulawesi, Saint
Cinchona knighted. For the role in establishing cinchona in Indonesia, Hasskarl was knighted with the Dutch order of the Lion. "Cinchona" species are used as food plants by the larvae of some Lepidoptera species, including the engrailed, the commander, and members of the genus "Endoclita", including "E. damor", "E. purpurescens" and "E. sericeus". "Cinchona pubescens" has grown uncontrolled on some islands such as the Galapagos where it has posed the risk of outcompeting native plant species. In herbalism, cinchona bark was used as an adulterant in Jesuit's bark or Peruvian bark which originally is thought to have referred to "Myroxylon peruiferum",