Cinchona for quinine production. While ultimately successful in their primary aim, these expeditions also identified new species of plants and created a new chapter in international relations between the United States and other nations in the Americas. Francesco Torti used the response of fevers to treatment with cinchona as a system of classification of fevers or a means for diagnosis. The use of cinchona in the effective treatment of malaria brought an end to treatment by bloodletting and long-held ideas of humorism from Galen. For his part in obtaining and helping the establishment of cinchona in British India Clements Markham was
Bark beetle that do not feed on fungi, by having the fungi do the work of overcoming the plants' chemical defenses. The beetles carry the fungal spores in special structures, called mycangia, and infect the trees as they attack them. Like many other insects, Scolytinae emit pheromones to attract conspecifics which are thus drawn to trees already colonized by bark beetles. This can result in heavy infestations and eventually death of the tree. Many are also attracted to ethanol, one of the byproducts of microbial growth in dead woody tissues. Bark beetle A bark beetle is one of about 220 genera with