The Annals is an 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.

This volume includes a special collection of articles commemorating the life and work of Alwyn Gentry (1945–1993), a highly respected botanist whose contributions left a lasting impact on the field.

CONTENTS OF THE ANNALS OF THE MISSOURI BOTANICAL GARDEN, VOL. 110

A Key to the Neotropical Genera of Lauraceae
Flávio Macedo Alves, Leandro Cézanne de Souza Assis, Alexandre Quinet, and João Batista Baitello

Taxonomic Revision and Conservation Status of the Species of Eryngium (Apiaceae, Saniculoideae) Native to Australia
Ariana Lucía Padin

Synopsis of the New Section Nothoscordum sect. Gracilia (Amaryllidaceae)
Agostina B. Sassone, Silvia Arroyo-Leuenberger, and Pablo Moroni

Alwyn Gentry: Explorer, Conservationist, Father*
Diane Gentry

Plant Diversity and Endemism of the Sierra Nevada de Santa Marta, Colombia, with Floristic Comparisons to Surrounding Mountains*
Riley P. Fortier, Alyssa T. Kullberg, Lina Aragón, Manuel Bernal-Escobar, Maria Paula Contreras, Camilo Palacios Hurtado, Laís Lautenschlager, and Kenneth J. Feeley

The Andes of Colombia and Ecuador as a Barrier to Fern and Lycophyte Species from Mesoamerica*
Sarah K. Morris and Robbin C. Moran

How Al Gentry Changed Tropical Ecology*
Oliver L. Phillips

Synonymizing Two Species Names, Designating Lectotypes, and Cataloging Intermediates in Two Hybrid Zones of Hedychium
Ajith Ashokan, Mark F. Newman, Edakandiyil Sanoj, Mamiyil Sabu, and Vinita Gowda

On the Fractal Dimension of Ecotones among African Vascular Plants
Thinabakho R. L. Ncube, Jon C. Lovett, Helen M. de Klerk, and Cang Hui

Studies in Neotropical Araliaceae. XIV. Revision of the Violaceum Group of Sciodaphyllum in Ecuador
Porter P. Lowry II, Gregory M. Plunkett, M. Marcela Mora, and David A. Neill

In Memoriam: A Tribute to George E. Schatz (1953–2024), Botanist, Explorer, and Conservationist
James S. Miller, Porter P. Lowry II, and Cathryn Goodwin

The Evolutionary Legacy of Al Gentry: Uniting Patterns and Processes of Neotropical Rainforest Evolution*
Serafin J. R. Streiff, Roy H. J. Erkens, and Thomas L. P. Couvreur

Taxonomic Studies of Diospyros (Ebenaceae) from the Malagasy Region. XII. Diospyros schatzii, a New Species from Northeastern Madagascar Honoring George E. Schatz (1953–2024)
Porter P. Lowry II, Alexander G. Linan, and Hasina N. Rakouth

A Taxonomic Revision of the Mascarene Hibiscus sect. Lilibiscus (Malvaceae), with Morphometric Analysis and Description of Two New Species
Brock Mashburn, Jean Claude Sevathian, Vikash Tatayah, Cláudia Baider, Kersley Pynee, Arnaud Rhumeur, Lex A. J. Thomson, Martin W. Callmander, and Christine E. Edwards

La Naturaleza de las Especies de Frailejones: Un Experimento de Jardín Común en Sumapaz
Diana Marcela Abaunza, Moisés Penagos, Jorge Penagos, Álvaro Mariño, and Iván Jiménez

Studies of Neotropical Compositae—XIX. Sciadocephala gentryi (Eupatorieae), a New Species from Pasco, Peru*
John F. Pruski, Rosa del C. Ortiz, Ricardo A. Zañartu, and Cynthia Hong Wa

Reestablishment of Passiflora toxicaria and P. velutina, with the Division and Synonymization of P. araujoi
Artur Manoel Leite Medeiros, Nilton Tadeu Vilela Junqueira, João Batista Fernandes da Silva, Luiz Otávio Adão Teixeira, Vania Gonçalves Lourenço Esteves, Claudia Barbieri Ferreira Mendonça, and Ana Carolina Mezzonato-Pires

A Taxonomic Revision of the Marlierea clade (Myrcia sect. Aulomyrcia, Myrtaceae)
Paulo Henrique Gaem, Fiorella Fernanda Mazine, Volker Bittrich, Maria do Carmo Estanislau do Amaral, and Eve Lucas

The Genus Vanilla (Orchidaceae) in South America—Bolivia, Colombia, Ecuador, and Peru: An Annotated Checklist with a New Species
Alexander Damián-Parizaca, Adam P. Karremans, Andrés A. Barona-Colmenares, Gabriel Iturralde, Álvaro J. Pérez, Wilfrido de la Cruz, Lou Jost, Henry X. Garzón, David Villalba-Vargas, Freddy S. Zenteno-Ruiz, Araceli L. Moya-Huanca, Cristian Castro, Joyser Pizango, Eduardo Vilcatoma, Alex G. Bentley, Marco M. Jiménez, Luis Baquero, Nicole Mitidieri-Rivera, and Kenneth M. Cameron


* Special collection commemorating Alwyn Gentry