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. 94, NUMBER 3

Revision of Wielandia including Blotia and Petalodiscus (Phyllanthaceae; Euphorbiaceae s.l.). Petra Hoffmann and Gordon McPherson

Phylogenetic Analysis of Morphological Characters in Ourisia (Plantaginaceae): Taxonomic and Evolutionary Implications. Heidi M. Meudt and Beryl B. Simpson

Revisión Taxonómica de las Especies del Género Verbena (Verbenaceae): Serie Pachystachyae. Nataly O’Leary, María Ema Múlgura and Osvaldo Morrone

A Revision of the Genus Pithecoctenium (Bignoniaceae). Amy Pool

Chromosome Numbers and Karyotypes in Asteraceae. Kuniaki Watanabe, Tetsukazu Yahara, Goro Hashimoto, Yoshimi Nagatani, Akiko Soejima, Takayuki Kawahara and Miyuki Nakazawa

Systematics of the Genus Mentzelia (Loasaceae) in South America. Maximilian Weigend

Nine Easy Steps for Constructing Reliable Trees from Published Phylogenetic Analyses. Richard H. Zander