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  • Polemonium caeruleum L. Polemoniaceae Jacob's ladder, Greek Valerian. Hardy perennial. Distribution: Temperate Europe. Dioscorides in 70 AD (Beck, 2005), and Lyte (1578) recommended it drunk in wine, for malignant ulcers, dysentery, difficulty in micturition, hip disease. The root was worn round the neck to protect against scorpions, and stopped toothache if chewed. Called Valerian Graeca by Dodoens (1551) and Parkinson (1640), Valeriana peregrina Belgarum by Lobel (1576). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Single neurone in the midbrain of an adult zebrafish, LM
  • Dermatofibroma, LM
  • Aconitum carmichaelii Debeaux. Ranunculaceae. Chinese aconite, Chinese wolfsbane, Carmichael's monkshood. Herbaceous perennial. Distribution C. to W. China to N. America. Named for Dr J.R. Carmichael (d. 1877), English physician, plant collector and Protestant missionary from 1862-1877 in Guangdong and Shandong, China initially in Canton. He aided Francis Forbes to collect plants for Kew. Aconitum plants are so poisonous that Theophrastus states that death was the punishment for possessing them. Aconitine is the poison and was used - from Aconitum ferox - in the 'curry murder' in London in 2009. It causes respiratory paralysis, bradycardia (slowing of the pulse), cardiac arrhythmias, tingling, sweating, gastric cramps, diarrhoea and death, both by ingestion and by absorption through the mucous membranes and the skin. Despite this it is widely used in Chinese herbal medicine. It is a restricted herbal medicine which can only be dispensed by a herbal practitioner for external use following a one-to-one consultation, or by prescription from a registered doctor or dentist (UK Medicines and Healthcare Products Regulatory Agency (MHRA)). Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Pancreatic cancer cells grown in culture, SEM
  • Partners in crime - chloroplasts and mitochondria
  • Thermogram of an infected middle finger, left hand.
  • Raynaud's Phenomenon
  • Prostate cancer cells treated with nano sized drug carriers
  • Diatom frustule, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • HeLa cell, immortal human epithelial cancer cell line, SEM
  • Papanicolaou stained smear of a clival chordoma, microscopy. Chordomas are cancers formed of cells which resemble those of the notochord (spine) of a developing foetus. Although they can present anywhere within the spine and skull, the majority grow in the sacral region of the spine, corresponding to the lower back. This image shows a Papanicolaou (Pap) stained smear obtained from a needle biopsy of a chordoma in the clivus, a part of the cranium at the base of the skull.
  • ATP synthase is an enzyme that creates the energy storage molecule adenosine triphosphate (ATP). ATP is simply the energy used by cells of most organisms
  • Lung cancer cells grown in culture, SEM
  • Thermal hand prints
  • HIV Reverse Transcriptase
  • Rat neurones, SEM
  • Tradescantia 'Concorde Grape'
  • Helleborus x hybridus Hort. Ex Vilmorin Ranunculaceae. A range of hybrids from Helleborus orientalis the Oriental hellebore. Distribution: Europe through to the Caucasus. All very poisonous. Culpeper (1650) says: “The roots (boiled in vinegar) ... be an admirable remedy against inveterate scabs, itch and leprosy, the same helps the toothache, being held in the mouth: dropped into the ears, helpeth deafness coming of melancholy and noises in the ears
  • Thermogram of an infected middle finger, left hand.
  • Salvia nemorosa L. Lamiaceae Woodland sage. Balkan clary Distribution: Central Europe, Western Asia. Most of the historical medicinal literature is on common sage, Salvia officinalis. The name Salvia meaning 'healthy'. Elizabeth Blackwell (1737) wrote that it had "... all the noble Properties of the other hot Plants more especially for the Head, Memory, Eyes, and all Paralytical Affections. In short, 'tis a Plant endu'd with so many and wonderful Properties, as that the assiduous use of it is said to render Men Immortal" with which Hans Sloane agreed. Linnaeus (1782) also: 'Timor, Languor, Leucorrhoea, Senectus [fear, tiredness, white vaginal discharge, old age]'. Its health giving and immortality conferring properties were recorded in the aphorisms of the School of Salerno (fl 9-13th century) - quoted in the Decameron [c.1350, translated: Why should man die when Salvia grows in the Garden']. Some salvias, such as Salvia divinorum contain hallucinogenic compounds. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • 2-day old zebrafish viewed under a stereo microscope, LM
  • Lung cancer cells
  • Primula sieboldii 'Long Acre hybrids'
  • Veronica officinalis L. Scrophulariaceae Speedwell. Distribution: Europe. Gerard (1633) calls this the female Fluellen, or Speedwell and Elantine. Pena and Lobel (1570/1) report how a barber cured a man whose nose was being eroded off by giving him Elatine (sic) to drink and by applying a poultice of the crushed herb to the sore - after learned physicians and surgeons had said the only remedy was to cut the nose off. Gerard lists several Veronica
  • Milk Sculpture
  • Habenular nucleus of zebrafish
  • Crocus vernus and Bombus terrestris
  • Origanum dictamnus L. Lamiaceae Dittany of Crete, Hop marjoram. Distribution: Crete. Culpeper (1650) writes: ‘... hastens travail [labour] in women, provokes the Terms [menstruation] . See the Leaves.’ Under 'Leaves' he writes: ‘Dictamny, or Dittany of Creet, ... brings away dead children, hastens womens travail, brings away the afterbirth, the very smell of it drives away venomous beasts, so deadly an enemy is it to poison, it’s an admirable remedy against wounds and Gunshot, wounds made with poisoned weapons, draws out splinters, broken bones etc. They say the goats and deers in Creet, being wounded with arrows, eat this herb, which makes the arrows fall out of themselves.' Dioscorides’ Materia Medica (c. 100 AD, trans. Beck, 2005), Pliny the Elder’s Natural History and Theophrastus’s Enquiry into Plants all have this information, as does Vergil’s Aeneid where he recounts how Venus produced it when her son, Aeneas, had received a deadly wound from an arrow, which fell out on its own when the wound was washed with it (Jashemski, 1999). Dioscorides attributes the same property to ‘Tragium’ or ‘Tragion’ which is probably Hypericum hircinum (a St. John’s Wort): ‘Tragium grows in Crete only ... the leaves and the seed and the tear, being laid on with wine doe draw out arrow heads and splinteres and all things fastened within ... They say also that ye wild goats having been shot, and then feeding upon this herb doe cast out ye arrows.’ . It has hairy leaves, in common with many 'vulnaries', and its alleged ability to heal probably has its origin in the ability of platelets to coagulate more easily on the hairs (in the same way that cotton wool is applied to a shaving cut to hasten clotting). Photographed in the Medicinal Garden of the Royal College of Physicians, London.