Reassessing the taxonomic diversity of Plagiothecium section Orthophyllum in the North American bryoflora Grzegorz J. Wolski Original Research Open access 08 September 2020 Pages: 337 - 350
Five new species of Campyloneurum (Polypodiaceae) from Jamaica, Colombia, and Ecuador Paulo H. LabiakR. C. Moran Original Research 10 August 2020 Pages: 351 - 361
Lytoneuron (Pteridaceae) of Minas Gerais and Espírito Santo, Brazil, including three new combinations and descriptions of two new taxa Nayara S. Smith-BragaPedro B. Schwartsburd Original Research 15 August 2020 Pages: 362 - 380
Two new species of Cinnamodendron (Canellaceae) from Brazil Jackeline SalazarFábio De BarrosMarcos A. Caraballo-Ortiz Original Research 12 August 2020 Pages: 381 - 392
Two new species of Myrcia sect. Reticulosae (Myrtaceae) from the campo rupestre of Minas Gerais, Brazil Thiago FernandesDuane F. LimaJoão Marcelo Alvarenga Braga Original Research 17 August 2020 Pages: 393 - 401
Additional nomenclatural and taxonomic notes in Miconieae (Melastomataceae) Fabián A. MichelangeliRenato GoldenbergPeter M. Jørgensen Original Research 08 September 2020 Pages: 402 - 405
Scaevola subalpina (Goodeniaceae), a new species from Mount Mantalingahan Protected Landscape, Palawan, Philippines Pastor L. Malabrigo Jr. Original Research 31 August 2020 Pages: 406 - 409
Begonia xochiatencana (Begoniaceae), una nueva especie de la sección Gireoudia de Guerrero, México Jesús Ricardo de Santiago Gómez Original Research 12 August 2020 Pages: 410 - 418
A new Andean species of Protium. Studies in neotropical Burseraceae XXIX Douglas C. DalyCarlos Augusto Reynel-RodríguezRobin Fernández-Hilario Original Research 08 September 2020 Pages: 419 - 423
Two new species of Raputia (Rutaceae: Galipeinae) from Amazonian Colombia Jacquelyn A. Kallunki Original Research 23 July 2020 Pages: 424 - 432
Species delimitation in the Echinocereus pulchellus complex (Cactaceae) Daniel SánchezDavid Gómez-QuinteroPatricia Dávila-Aranda Original Research 12 August 2020 Pages: 433 - 452