Systematics of Timonius Subgenus Abbotia (Systematics of Timonius Subgenus Abbottia (Rubiaceae-Guettar)Steven P. Darwin · First published 1994Open the Tome
A systematic study of the paleotropical genus Antirhea (Rubiaceae : Guettardeae)Shu-Miaw Chaw, Steven P. Darwin, Tulane University. Department of Ecology, Evolution, and Organismal Biology · First published 1992Open the Tome
Biogeography of MesoamericaSteven P. Darwin, Arthur L. Welden, Tulane University. Center for Latin American Studies · First published 1992Open the Tome
New species of Timonius (Rubiaceae) from PapuasiaSteven P. Darwin · First published 1983Open the Tome
A synopsis of the indigenous genera of Pacific RubiaceaeSteven P. Darwin · First published 1979Open the Tome
The Pacific species of Ophiorrhiza L. (Rubiaceae)Steven P. Darwin · First published 1976Open the Tome
