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. 89, NUMBER 1

A Systematic Revision of Breonia (Rubiaceae--Naucleeae). Sylvain G. Razafimandimbison

Classification, Origin, and Diversification of the New Zealand Hebes (Scrophulariaceae). Steven J. Wagstaff, Michael J. Bayly, Philip J. Garnock-Jones & Dirk C. Albach

Phylogenetic Reconstruction of the Neotropical Family Quiinaceae (Malpighiales) Based on Morphology with Remarks on the Evolution of an Androdioecious Sex Distribution. Julio V. Schneider, Ulf Swenson & Georg Zizka

A Review of the Genera Roentgenia and Potamoganos (Bignoniaceae). Warren D. Hauk

Molecular Data Indicate Complex Intra- and Intercontinental Differentiation of American Draba (Brassicaceae). Marcus Koch & Ihsan A. Al-Shehbaz

Evidence for Moth and Butterfly Pollination in Gladiolus (Iridaceae--Crocoideae). Peter Goldblatt & John C. Manning