Professor and Director, Tulane University Herbarium

Department of Ecology and Evolutionary Biology
Tulane University

Research Interests: Flowering plant evolution and classification; botany of Pacific Island plants; plant phylogenetics and biogeography; flora of the southeastern United States and the Yucatan Peninsula of Mexico.

Other Professional Interests: Economic plants and ethnobotany; Charles Darwin and the history of evolutionary biology; botanical exploration and illustration; history of arboreta, botanical gardens, and herbaria; biological nomenclature.

Darwin, S. P. 2010 A taxonomic revision of Timonius subg. Pseudobobea (Valeton) S. P. Darwin (Rubiaceae). Candollea 65: 217-240.

Ewan, J. [Edited by S. P. Darwin]. 2005. Notes on Louisiana Botany and Botanists, 1718-1975. Sida 21: 2275-2296.

Tercek, M. D. Hauber, and S. P. Darwin. 2003. Genetic and historical relationships among geothermally adapted Agrostis (bentgrass) of North America and Kamchatka: evidence for a previously unrecognized, thermally adapted taxon. American Journal of Botany 90: 1306-1312.

Wall, D. P. and S. P. Darwin. 1999. Vegetational and elevational gradients within a bottomland hardwood forest of southeastern Louisiana. American Midland Naturalist 142: 17-30.

White, D. A. and S. P. Darwin. 1995. Woody vegetation of tropical lowland deciduous forests and Mayan ruins in the north-central Yucatan Peninsula, Mexico. Tulane Studies in Zoology and Botany 30: 1-25.

Darwin, S. P. 1995. New species of the Timonius flavescens alliance (Rubiaceae: Guettardeae) in Papuasia. Systematic Botany 22: 85-98.

Darwin, S. P. 1994. Systematics of Timonius Subgenus Abbottia (Rubiaceae-Guettardeae). Systematic Botany Monographs 42: 1-86.

Kores, P. J., M. Molvray, and S. P. Darwin. 1993. Morphometric variation in three species of Cyrtostylis (Orchidaceae). Systematic Botany 18: 274-282.

Darwin. S. P. 1993. Albert Charles Smith - winner of the 1992 Asa Gray Award. Systematic Botany 18: 1-5.

Chaw, S.-M. and S. P. Darwin. 1992. A systematic study of the Paleotropical genus Antirhea (Rubiaceae: Guettardeae). Tulane Studies in Zoology and Botany 28: 25-118.

Meier, R., P. Kores, and S. Darwin. 1991. Homoplasy slope ratio and standardized homoplasy index: better measurements of observed homoplasy in cladistic analyses. Systematic Zoology 40: 74-88.

Darwin, S. P. and S.-M. Chaw. 1990. Bobea. In: W. L. Wagner, D. R. Herbst, and S. H. Sohmer, Manual of the Flowering Plants of Hawai'i (pp. 1114-1118). B. P. Bishop Museum Press.

Smith, A. C. and S. P. Darwin. 1988. Rubiaceae. In: A. C. Smith, Flora Vitiensis Nova - A New Flora of Fiji. 4: 143-376. National Tropical Botanical Garden Press.
Timonius clathratus S. P. Darwin (A-E), Timonius leptocalyx S. P. Darwin (F-I), and Timonius moluccanus S. P. Darwin (J-L). From Darwin (2010).