Is the demise of plant taxonomy in sight? Maybe yes, maybe no… Riccardo M. Baldini, J. Hugo Cota-Sánchez, Carlos Aedo 3-10 PDF DOI: https://doi.org/10.36253/jopt-10802
The taxonomic circumscription of Aconitum subgenus Aconitum (Ranunculaceae) in Europe Józef Mitka, Andriy Novikov, Walter Rottensteiner 11-45 PDF DOI: https://doi.org/10.36253/jopt-10006
Argostemma quarantena (Rubiaceae, Ruboideae), a new species from southern Western Ghats, India Anoop Puthuparampil Balan, Aloor Jose Robi, Nanu Sasidharan 47-52 PDF DOI: https://doi.org/10.36253/jopt-9592
A new Pisonia (Nyctaginaceae) from Jamaica, with an updated list of species in the genus and a key to the West Indian taxa Marcos A. Caraballo-Ortiz, Keron C. St. E. Campbell, Sashalee J. Cross 53-63 PDF DOI: https://doi.org/10.36253/jopt-10018
A A new Muscarella (Orchidaceae: Pleurothallidinae) from Tapantí National Park, Costa Rica Melania Fernández, Diego Bogarín, Franco Pupulin 65-70 PDF DOI: https://doi.org/10.36253/jopt-10029
Memecylon viswanathanii, a new species of Melastomataceae from Kalakkad-Mundanthurai Tiger Reserve (KMTR), India Ramasamy Rajesh, Perriasamy Sakthidhasan, Rajasekar Chinnaiyan 71-76 PDF DOI: https://doi.org/10.36253/jopt-10124
Studies of the Homalomeneae (Araceae) of Peninsular Malaysia VIII: Homalomena joanneae [Chamaecladon Clade], a new locally endemic limestone-obligated species Sin Yeng Wong, Peter C. Boyce 77-81 PDF DOI: https://doi.org/10.36253/jopt-10326
Studies on Homalomeneae (Araceae) of Borneo XXVII: A new Homalomena [Chamaecladon Clade] endemic to the Santubong Peninsula Sin Yeng Wong , Peter C. Boyce 83-87 PDF DOI: https://doi.org/10.36253/jopt-10339
Typification and synonymy of the Atlantic Forest endemic species Napeanthus primulifolius (Gesneriaceae) James Lucas da Costa-Lima, Earl Celestino de Oliveira Chagas 89-95 PDF DOI: https://doi.org/10.36253/jopt-10377
A numerical approach to the taxonomy of some species of the Subtribe Cassiinae in Nigeria Opeyemi Saheed Kolawole, Abdullahi Alanamu Abdulrahaman, Emmanuel Chukwudi Chukwuma, Mahboob Adekilekun Jimoh 97-108 PDF DOI: https://doi.org/10.36253/jopt-10036
Pollen morphology and variability of species from the genus Rubus L. (Rosaceae) alien and invasive in Poland Kacper Lechowicz, Jan Bocianowski, Dorota Wrońska-Pilarek 109-121 PDF DOI: https://doi.org/10.36253/jopt-10355
Additions to the lichen genus Rhizocarpon in Pakistan and their comparative analysis Kamran Habib, Rizwana Zulfiqar, Abdul Nasir Khalid 123-134 PDF DOI: https://doi.org/10.36253/jopt-9889
Strelitzia nicolaii Regel & Körn. (Strelitziaceae), a casual alien plant new to Northern Hemisphere Giuseppe Collesano, Antonina Fiorello, Salvatore Pasta 135-140 PDF DOI: https://doi.org/10.36253/jopt-10183
