I had no idea that there were 10,000 medicinal plants and only 3,000 food plants! I wonder what resources our commercialized pharmaceutical approaches might be missing out on, but perhaps not that many since 71% of our current medicines can be traced back to their original ethnobotanical uses. This presentation made me wonder how the uses for drugs are discovered. For example, the “Ordeal Bean” – how did researchers know to test its effectiveness for treating glaucoma, rather than the countless other ailments that affect us? I had never thought about this before, but now that I have, it’s given me a new appreciation of how incredible an achievement it is to produce an effective and safe drug. Dr. Kinghorn’s presentation has made me really interested in botany and medicinal plants, and I might try to visit Kew Gardens. I also had no idea that black pepper and other spices could be used to enhance the ability of certain drugs to enter the bloodstream, and I thought that was interesting.