The Annals of the Missouri Botanical Garden, published quarterly since 1914, contains peer-reviewed papers primarily devoted to systematic botany and evolutionary biology. 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. 102, NUMBER 4

Molecular, Karyotypic, and Morphological Evidence for Ammopiptanthus (Fabaceae) Taxonomy
Wei Shi, Zhi Hao Su, Pei Liang Liu, Bo Rong Pan, Yan Feng Zhao & Jian Cheng Wang

A Synopsis of the Liverwort Flora of North America North of Mexico
Raymond E. Stotler & Barbara Crandall-Stotler

Synopsis of the Genus Ocampoa (Orchidaceae)
Dariusz L. Szlachetko & Marta Kolanowska

The Taxonomic Relevance of Achenial Trichomes in Invasive European Asteraceae
Yulia K. Vinogradova, Andrey S. Ryabchenko & Maria A. Galkina

• Editor-in-Chief: Li-Bing Zhang