Name
- Pitton de Tournefort, Joseph, MD; French botanist1
- Plukenett, Leonard, MD; Superintendent of Hampton Court Gardens1
- Pool, of Sloane MS 40641
- Poole, Robert, of Sloane MS 40641
- Porquet, Père -, Jesuit Missionary at Canton1
- Preston, Charles, MD, of Edinburgh1
- Ravenhill, J-1
- Ray, John, Reverend; of Black Nutley, county Essex; Fellow of Trinity College, Cambridge, 1627-17051
- Richardson, Richard, senior MD, Botanist1
- Robertson, J-, of Sloane MS 40641
- Rous, William, Master of the Apothecaries Company, London1
- Royal College of Physicians, London1
- Royal College of Surgeons, London1
- Royal Society of London, 1660-1
- Ruysch, Fredrik, MD, of Amsterdam1
- Ruysch, Hendrik, of Amsterdam1
- Salvador, Juan, Master Apothecary, of Barcelona1
- Scheuchzer, Jean Jacques, senior, of Zürich1
- Scheuchzerus, Johannes, Professor of Natural Philosophy at Zürich1
- Serrano, Vincentius, Jesuit1