R


 * Rabeling, Christian


 * Radchenko, Alexander G.


 * Radoszkowsky, Octavius Ivanovitch (1820-1895)


 * Raffray, Achille (1844-1923)


 * Rafin, G.


 * Rafinesque-Schmaltz, Constantine Samuel (1783-1840)


 * Raignier, Albert (1904-2002)


 * Rajan, Priyadarsanan Dharma


 * Ramos-Lacau, Lucimeire de Souza


 * Rasnitsyn, Alexander Pavlovich


 * Ray Chaudhuri, Dhirendra Nath (1924-1981)


 * Razoumowsky, Grégoire de (1759-1837)


 * Reich, Gottfried Christian (1769-1848)
 * Reichensperger, August (1878-1962)


 * Reiskind, Jonathan


 * Ren, Dong


 * Rettenmeyer, Carl W.


 * Retzius, Anders John (1742-1821)


 * Reuter, Markus


 * Reyes López, Joaquín L.


 * Reza, Agustín


 * Riasol Boixart, Josep M.


 * Ribeiro, S.


 * Ride, William David Lindsay


 * Rigato, Fabrizio


 * Riou, Bernard


 * Rissing, Steve W.


 * Ritsema, Cornelius (Conrad) (1846-1929)
 * Robertson, Hamish G.


 * Rodríguez Gonzales, A.


 * Rodríguez, Rafael


 * Roger, Julius (1819-1865)


 * Roig, Xavier


 * Romand, Balthasar E. de


 * Roncin, Eric


 * Rosciszewski, Krzysztof
 * Rosi, Maria Rita


 * Rossi de García, E.


 * Röszler, Paul


 * Rothney, George Alexander James (1849-1922)


 * Roux, Amanda


 * Ruano Diaz, Francisca


 * Russo,Giuseppe (1897-1972)


 * Rust, Jes


 * Ruzsky, Mikhail Dmitrievich (1864-1948)