Name
- Purdie, Robert1
- Raffles, Thomas Stamford Bingley, Knight, colonial governor, 1781-18261
- Reeves, I-1
- Rennell, James, cartographer, 1742-18301
- Richard, Achille1
- Richardson, John, MD; of Add MS 324401
- Ross, George Clark1
- Schreber, Johann Christoph Daniel, Professor at Erlangen1
- Schwägrichen, Christian Friedrich1
- Scoresby, William, junior1
- Seguier, ? Armand Pierre, Baron1
- Sieber, Franz Wilhelm, of Prague1
- Smith, Thomas, of Add MS 324401
- Sprengel, Curtius Polycarpe Joachim1
- St. Hilaire, Auguste François César Prouvensal1
- Stackhouse, John1
- Steven, C-, Directeur du jardin de Natutralization, en Crimée1
- Stewart, J-, Botanical Lecturer at Edinburgh1
- Strange, Jean1
- Templeton, John1