Show 145: Herb Lab - The Doctrine of Signatures, Allergies and Herbalist CareersAfter talking with spudgerasist and mycologist, Jason Scott, owner and operator of Feral Fungi and the curator of AlcheMycology about using the Doctrine of Signatures, Sue and Candace discuss its history and changes in the present. Mentioned by the Greek physicians Galen (129 AD – 216 AD) and Dioscorides (40 AD – 90 AD), this philosophy has evolved a lot over the centuries. Although many use the Doctrine of Signatures primarily as a mnemonic device, it tells us a lot about cultural values and botanical connections that are shifting to fit our ever changing world.