Authors
Georg Victor Raatz (Raatz)
László Rácz (Rácz)
Georgii Pavlovich Radchenko (Radcz.) fl. 1933
Norman William Radforth (Radforth) fl. 1906
Rajka Radoicić (Radoicić)
María Eugenia Raffi fl. 2018
Eugenio Ragazzi fl. 2020
Atiur Rahman (A.Rahman)
G. Ralli (Ralli) fl. 1933
C.G.K. Ramanujam (Ramanujam) fl. 1933
José L. Ramírez (J.L.Ram.) fl. 2002
Deepak Duryodhan Ramteke (Ramteke) fl. 2014
K.Purnachandra Rao (K.P.Rao) fl. 1973
K. Rashidi (Rashidi)
L Rasingam (Rasingam)
Klara Rásky (Rásky) *1908 - †1971
W. Rau (W.Rau) fl. 1933
M.S. Rawat (Rawat) fl. 1963
R.J. Rayner (R.J.Rayner)
Charles Brian Read (C.B.Read) fl. 1939