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  • Article

Illuminated manuscripts, illuminating medicines

From rare bugs to exorbitantly priced plant parts, find out more about the artistic and medical uses of pigments from the past.

  • Article

Theriac: An ancient brand?

The name theriac survived for around for two millennia as a pharmaceutical term. But a ‘brand’ name is not always a guarantee of quality.

  • Book extract

What the wind can bring

In this extract from ‘This Book is a Plant’, Amanda Thomson shares a newfound fascination with flowers, and reveals why our relationship with plants can also be complicated.

  • Article

Indian botanicals and heritage wars

Colonial botanical texts, as astonishingly beautiful as they are, may cast very dark shadows.

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  • Gardenia jasminoides J.Ellis Rubiaceae. Cape jasmine - as erroneously believed to have come from South Africa. Distribution: China. Named for Dr Alexander Garden FRS (1730-1791) Scottish-born physician and naturalist who lived in Charles Town, South Carolina, and corresponded with Linnaeus and many of the botanists of his era. The fruits are used in China both as a source of a yellow dye, and for various unsubstantiated medicinal uses. Other species of Gardenia are found in tropical Africa and the roots and leaves have all manner of putative uses. Gardenia tenuifolia is used as an aphrodisiac, for rickets, diarrhoea, leprosy, gall bladder problems, toothache, liver complaints, diabetes, hypertension, malaria and abdominal complaints. It causes violent vomiting and diarrhoea. It, and other species, are used to poison arrows and to poison fish. Some native, muthi medicine, healers regard Gardenia as a ‘last chance’ medicine, given to patients when all else fails – the patient either dies or recovers (Neuwinger, 1996). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Ornithogalum umbellatum L. Hyacinthaceae Star of Bethlehem, Grass lily. Distribution: Central Europe, SW Asia, NW Africa. All parts are poisonous, especially the bulbs. The toxin is a cardiac glycoside with effects similar to digoxin, vomiting, cardiac irregularities and death in humans and livestock. Only used for decoration by Native Americans (it is a non-native plant that has escaped into the wild from cultivation) and called Sleepydick (Moerman, 1998). One of its toxins is Convallotoxin, also present in Lily of the Valley, Convallaria majalis. 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.
  • Images related to Kenyan dart-poison
  • Kenyan dart-poison including scoring upas trees etc.
  • Oleander (Nerium oleander) leaf, LM
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