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  • Erythroxylum coca Lam. Erythroxylaceae Coca. Distribution: Peru . Cocaine is extracted from the leaf. It is no longer in the UK Pharmacopoeia (used to be used as a euphoriant in ‘Brompton Mixture’ for terminally ill patients). Cocaine, widely used as a local anaesthetic until 1903, inhibits re-uptake of dopamine and serotonin at brain synapses so these mood elevating chemicals build up and cause a ‘high’. Its use was often fatal. Coca leaf chewing was described by Nicolas Monardes (1569
  • Two trees being cultivated by doctors; symbolising the differences claimed by James Morison between the 'organic' and his 'hygeist' approached to health. Lithograph, c. 1835.
  • Two trees being cultivated by doctors; symbolising the differences claimed by James Morison between the 'organic' and his 'hygeist' approached to health. Lithograph, c. 1835.
  • Two trees being cultivated by doctors; symbolising the differences claimed by James Morison between the 'organic' and his 'hygeist' approached to health. Lithograph, c. 1835.
  • Two trees being cultivated by doctors; symbolising the differences claimed by James Morison between the 'organic' and his 'hygeist' approached to health. Lithograph, c. 1835.