Eplingiella sanoi sp. nov. (Hyptidinae-Lamiaceae): supports the urgent need for campos rupestres conservation in the Serra do Espinhaço Septentrional, Minas Gerais state, Brazil Guilherme Medeiros Antar, Raymond Mervyn Harley, José Floriano Barêa Pastore, Marcio Verdi, Arthur de Souza Soares 191-200 PDF DOI: https://doi.org/10.36253/jopt-15902
Additions to and revisions of the endemic and near-endemic Acanthaceae of Ethiopia Hanny Lidetu, Gabriella Hoban, Olivia Lockyear, Aaron Belcher, Vida J. Svahnström, Iain Darbyshire 201-225 PDF DOI: https://doi.org/10.36253/jopt-16074
Possible horizontal gene transfer: Virectaria stellata (Sabiceeae-Rubiaceae), a new sandstone cliff species from the Republic of Guinea with stellate hairs recorded for the first time in the Rubiaceae Faya Julien Simbiano, Xander M. van der Burgt, Iain Darbyshire, Pepe M. Haba, Gbamon Konomou, Martin Cheek, Charlotte Couch, Sékou Magassouba 227-237 PDF DOI: https://doi.org/10.36253/jopt-16523
Xylopia nilotica (Annonaceae) in Ethiopia, Sudan, South Sudan, and Uganda, with a review of the genus in North Eastern Tropical Africa Ib Friis, Odile Weber 239-254 PDF DOI: https://doi.org/10.36253/jopt-16134
Schismatoglottideae (Araceae) of Borneo LXXVII — Circumscribing Schismatoglottis sensu stricto, and seven new genera Wong Sin Yeng, Peter C. Boyce 255-289 PDF DOI: https://doi.org/10.36253/jopt-16015
Cyrtosperma prasinispathum: a new fascinating Aroid species from Papua, Indonesia Muhammad R. Hariri, Arifin S.D. Irsyam, Siti R. Ariati, Erick Raynalta, Dwi Setyanti, Ikar Supriyanta 291-294 PDF DOI: https://doi.org/10.36253/jopt-16076
Amorphophallus samarensis (Araceae), a new species endemic to Samar Island, Eastern Visayas, Philippines Norilyn Fontarum-Bulawin, Maria Melanie Medecilo-Guiang, Grecebio Jonathan D. Alejandro 295-303 PDF DOI: https://doi.org/10.36253/jopt-16302
Monstera cedenoi (Araceae: Monsteroideae), a new glaucous species with pinkish spathes endemic to Costa Rica (Central America) Orlando O. Ortiz, Thomas B. Croat, Jason M. Hughes 305-310 PDF DOI: https://doi.org/10.36253/jopt-16331
The pendent species of Anthurium sect. Porphyrochitonium from Costa Rica and Panama: synopsis, nomenclatural notes, new species, and conservation status Orlando O. Ortiz, Marco Cedeño-Fonseca, José Esteban Jiménez, Jason M. Hughes 311-350 PDF DOI: https://doi.org/10.36253/jopt-16289
