The Annals of the Missouri Botanical Garden, published quarterly since 1914, contains peer-reviewed papers primarily devoted to systematic botany and evolution. The Annals reflect the global mission of the Garden, with contributing authors from the Americas, Africa, Europe, Asia, and Australasia.

CONTENTS OF THE ANNALS OF THE MISSOURI BOTANICAL GARDEN, VOL. 83, NUMBER 3

A Revision of Cynanchum (Asclepiadaceae) in Africa. Sigrid Liede

Phylogeny and Speciation in Lapeirousia Subgenus Lapeirousia (Iridaceae: Ixioideae). Peter Goldblatt and John C. Manning

Phylogenetic Relationships, Seed Characters, and Dispersal System Evolution in Amaryllideae (Amaryllidaceae). D. A. Snijman and H. P. Linder

A Taxonomic Synopsis of the Genus Salsola (Chenopodiaceae) in North America. Sergei L. Mosyakin

Ritmos Temporales de la Investigacion Taxonomica de Plantas Vasculares en Mexico y Una Estimacion del Numero de Especies Conocidas. Rodolfo Dirzo and Guillermina Gomez

Diversity of the Flora of Fan Si Pan, the Highest Mountain in Vietnam. Nguyen Nghia Thin and Daniel K. Harder

Toward an Improved Classification of Lauraceae. Henk van der Werff and H. G. Richter

The Use of Cuticular Features in the Taxonomy of the Lauraceae. D. C. Christophel, R. Kerrigan, and A. I. Rowett