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 3

Phylogenetic Relationships of the Genus Piptochaetium (Poaceae, Pooideae, Stipeae): Evidence from Morphological Data. Ana Maria Cialdella & Liliana Monica Giussani

Systematic Revision and Phylogeny of Paspalum Subgenus Ceresia (Poaceae: Panicoideae: Paniceae). Silvia S. Denham, Fernando O. Zuloaga & Osvaldo Morrone

Phylogeny of the Tribe Hymenocallideae (Amaryllidaceae) Based on Morphology and Molecular Characters. Alan W. Meerow, Charles L. Guy, Qin-Bao Li & Jason R. Clayton

Phylogenetic and Biogeographic Diversification in Osmorhiza (Apiaceae). Jun Wen, Porter P. Lowry II, Jeffrey L. Walck & Ki-Oug Yoo

A Synopsis of Ocotea (Lauraceae) in Central America and Southern Mexico. Henk van der Werff