The Annals is a quarterly international journal primarily devoted to systematic botany and evolutionary biology. We encourage submissions of original papers dealing with significant advances in the taxonomy, phylogeny, conservation, and evolution of plants using morphological and/or molecular characters. We also welcome reviews and papers on conceptual issues and new methodologies in systematics. Important floristic works can occasionally be considered. Symposia proceedings discussing a broader range of topical biological subjects are also published, typically once a year. All manuscripts are peer-reviewed by qualified and independent reviewers.

CONTENTS OF THE ANNALS OF THE MISSOURI BOTANICAL GARDEN, VOL. 105, NUMBER 3

Orchestrated Flowering and Interspecific Facilitation: Key Factors in the Maintenance of the Main Pollinator of Coexisting Threatened Species of Andean Wax Palms (Ceroxylon spp.)
Javier Carreño-Barrera, Luis Alberto Núñez-Avellaneda, Maria José Sanín & Artur Campos D. Maia

An Elegy to Rangaeris, Including a Description of Two New Genera in the Cyrtorchis–Tridactyle Clade (Orchidaceae, Angraecinae)
João N. M. Farminhão, Tania D’haijère, Vincent Droissart, Landry Dumbo Isonga, Ling Dong, Simon Verlynde, Gregory M. Plunkett, Murielle Simo-Droissart & Tariq Stévart

Evolution of Angiosperm Pollen: 8. Lamiids
Li-E Yang, Lu Lu, Kevin S. Burgess, Hong Wang & De-Zhu Li

The Origins and Maintenance of Neotropical Biodiversity, the 66th Annual Symposium of the Missouri Botanical Garden

Natural Enemies and the Maintenance of Tropical Tree Diversity: Recent Insights and Implications for the Future of Biodiversity in a Changing World Liza S. Comita & Simon M. Stump New and Repeating Tipping Points: The Interplay of Fire, Climate Change, and Deforestation in Neotropical Ecosystems Mark B. Bush The Central Role of Taxonomy in the Study of Neotropical Biodiversity Laura P. Lagomarsino & Laura A. Frost

• Editor-in-Chief: Peter Hoch