Travels of European botanists of the 16th-18th centuries in search of Mediterranean plants described by Dioscorides and Theophrastus Alessandro Minelli 5-13 PDF DOI: https://doi.org/10.36253/jopt-17353
David Fairchild as a naturalist and advocate for tropical biology research: his 1924 trip to Panama Valeria Morey, Eleanor Lahn, Charlotte Elton, Alicia Ibáñez, Yves Basset, Javier Franisco-Ortega 15-41 PDF DOI: https://doi.org/10.36253/jopt-16917
Microlicia geraizeira (Melastomataceae, Lavoisiereae): A newly discovered species from northern Minas Gerais, Brazil Ana Flavia Alves Versiane, Maria José Reis da Rocha, Rosana Romero 43-50 PDF DOI: https://doi.org/10.36253/jopt-17079
Alpinia arachniformis (Zingiberaceae): a new species from New Ireland, Papua New Guinea Rudolph Valentino A. Docot, Thomas Haevermans, Bernard Sule, Axel Dalberg Poulsen 51-65 PDF DOI: https://doi.org/10.36253/jopt-17291
Two new species of Psychotria L. (Psychotrieae-Rubiaceae) from Dinagat Island, Philippines Jorge Anton D. Ordas, Yen-Ting Chen, Eiana Joshier A. Odulio, Genea Nichole G. Cortez, Sarah Grace S. Zamudio, Niña Kathryn G. Alfeche 67-76 PDF DOI: https://doi.org/10.36253/jopt-17036
Begonia ebo sp. nov. (Sect. Filicibegonia-Begoniaceae), endangered in Ebo, a highly threatened forest in Littoral Region, Cameroon Helen Lockwood, Eric Ngansop Tchatchouang 77-87 PDF DOI: https://doi.org/10.36253/jopt-17739
Begonia gigang (section Petermannia: Begoniaceae), a new species from Zamboanga Peninsula, Mindanao Island, Philippines Kean Roe F. Mazo, Rosario R. Rubite 89-94 PDF DOI: https://doi.org/10.36253/jopt-17444
Homalomena pistioides: a new small-sized lithophytic species of Sumatran Aroid Arifin S.D. Irsyam, Iin P.A. Husaini, Erick Raynalta, Muhammad R. Hariri 95-98 PDF DOI: https://doi.org/10.36253/jopt-16710
Nomenclatural changes and new species in Malesian Homalomena (Araceae) Arifin S.D. Irsyam, Erick Raynalta, Muhammad R. Hariri 99-104 PDF DOI: https://doi.org/10.36253/jopt-17033
Vepris viridis (Rutaceae), a new name for the most frequent and widespread unifoliolate African Vepris sp. Martin Cheek, W. R. Quentin Luke, Roy Gereau 105-106 PDF DOI: https://doi.org/10.36253/jopt-17740
Verbenaceae in Emas National Park (Goiás state, Central Brazil), with a focus on chromatic variation in the corollas of Lippia filifolia Pedro Henrique Cardoso, Polla Renon, Marlon Lopes Costa, Isa Lucia de Morais 107-120 PDF DOI: https://doi.org/10.36253/jopt-16698
Ib Friis, Mats Thulin. Scientific plant names derived from the surname of Pehr Forsskål – their history, orthography, legitimacy, and current use Riccardo Maria Baldini 121-123 PDF DOI: https://doi.org/10.36253/jopt-17741
