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  • Lathyrus vernus (L.)Bernh. Papilionaceae previously Orobus vernus L. (Linnaeus, 1753) Spring vetchling. Distribution: Europe to Siberia. The seeds of several Lathyrus species are toxic, and when eaten cause a condition called lathyrism. The chemical diaminoproprionic acid in the seeds causes paralysis, spinal cord damage, aortic aneurysm, due to poisoning of mitochondria causing cell death. Occurs where food crops are contaminated by Lathyrus plants or where it is eaten as a 'famine food' when no other food is available. It is the Orobus sylvaticus purpureus vernus of Bauhin (1671) and Orobus sylvaticus angustifolius of Parkinson (1640) - who records that country folk had no uses for it. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Lathyrus vernus (L.)Bernh. Papilionaceae previously Orobus vernus L. (Linnaeus, 1753) Spring vetchling. Distribution: Europe to Siberia. The seeds of several Lathyrus species are toxic, and when eaten cause a condition called lathyrism. The chemical diaminoproprionic acid in the seeds causes paralysis, spinal cord damage, aortic aneurysm, due to poisoning of mitochondria causing cell death. Occurs where food crops are contaminated by Lathyrus plants or where it is eaten as a 'famine food' when no other food is available. It is the Orobus sylvaticus purpureus vernus of Bauhin (1671) and Orobus sylvaticus angustifolius of Parkinson (1640) - who records that country folk had no uses for it. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Camassia leichtlinii (Baker)S.Watson Hyacinthaceae. Great Camas, Quamash. The species was named for Maximillian Leichtlin (1831-1910 of Baden , Germany, bulb enthusiast who corresponded with J.G. Baker at Kew. Bulbous herb. Distribution: North America. The bulbs of Camassia species were eaten by the Native Americans, the Nez Perce, after cooking by steaming for a day - which suggests they may be poisonous raw. They gave them to the American explorers, Meriwether Lewis and William Clerk, on their expedition (1804-1806) when they ran out of food. The bulbs of the similar looking 'Death camus', Toxicoscordion venenosum have been fatal when ingested by mistake (RBG Kew on-line). Steroidal saponins, which are precursors in the manufacture of steroids and cytotoxic activity has been detected in the sap of the bulbs. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Death as a lethal confectioner making up sweets using arsenic and plaster of Paris as ingredients; representing the toxic adulteration of sweets in the 1858 Bradford sweets poisoning. Wood engraving after J. Leech, 1858.
  • 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.
  • A horse-drawn hearse pulls away from a doctor's; representing the dire state of the medical establishment according to James Morison, pill-vendor and self-styled 'Hygeian'. Lithograph, c. 1848.