The impact of Covid-19 crisis on Plant Taxonomy: will we be able to approach to plant taxonomy as in the past? Riccardo Maria Baldini 3-4 PDF DOI: https://doi.org/10.36253/jopt-9205
Nepenthes latiffiana and N. domei (Nepenthaceae), two new species of pitcher plants from Terengganu, Peninsular Malaysia Mohd Norfaizal Ghazalli, Amin Asyraf Tamizi, Dome Nikong, Edward Entalai Besi, Muhamad Ikhawanuddin Mat Esa, Anuar Rasyidi Mohd Nordin, A. Latiff, Ahmad Zaki Zaini, Mohamad Alias Shakri 5-28 PDF DOI: https://doi.org/10.36253/jopt-7950
Studies on the Dipterocarpaceae of Borneo, II. Ant stipule-brood sites and extra floral nectary association in saplings of Shorea macrophylla [sect. Pachycarpae] in Sarawak, Malaysian Borneo Sin Yeng Wong , Peter C. Boyce 29-34 PDF DOI: https://doi.org/10.36253/jopt-8183
A Review of North American Isoetes engelmannii (Isoetaceae) complex hybrids, including the description of I. × fernaldii, hyb. nov. and I. × karenae, hyb. nov. Daniel Francis Brunton, Paul Clayton Sokoloff 35-50 PDF DOI: https://doi.org/10.36253/jopt-8355
Taxonomic significance of vegetative and reproductive morphology in southern Africa Rhynchosia sect. Rhynchosia (Fabaceae: Papilionoideae, Phaseoleae) Abdulwakeel Ayokun-nun Ajao, Annah Ntsamaeeng Moteetee 51-67 PDF DOI: https://doi.org/10.36253/jopt-7965
Sempervivum guillemotii Lamotte (Crassulaceae), a rediscovered houseleek of the French-Italian Alps Lorenzo Gallo 69-76 PDF DOI: https://doi.org/10.36253/jopt-7940
Monitoring of alien aquatic plants in the inland waters of Sicily (Italy) Angelo Troia, Vincenzo Ilardi, Elisabetta Oddo 77-83 PDF DOI: https://doi.org/10.36253/jopt-8414
Studies on Potheae (Araceae) of Borneo II: Pedicellarum M.Hotta subsumed into Pothos L., and recognition of three new species Sin Yeng Wong , Jyloerica Joling, Joan T. Pereira, Alviana Damit, Peter C. Boyce, Alistair Hay 89-103 PDF DOI: https://doi.org/10.36253/jopt-7944
Studies on Schismatoglottideae (Araceae) of Borneo LXIX: Schismatoglottis imbakensis, a new species of the Patentinervia Complex from ultramafic rocks, Sabah Kartini Saibeh, Peter C. Boyce, Wong Sin Yeng 105-110 PDF DOI: https://doi.org/10.36253/jopt-7945
Studies on the Alocasia Schott (Araceae) of Borneo III: Alocasia puncakborneensis, a new species belonging to the Princeps Complex Sin Yeng Wong , Peter C. Boyce 111-115 PDF DOI: https://doi.org/10.36253/jopt-7946
Studies on Homalomeneae (Araceae) of Sumatera VI: Two remarkable new species of Homalomena [Chamaecladon Clade] Sin Yeng Wong , Peter C. Boyce, Alistair Hay 117-122 PDF DOI: https://doi.org/10.36253/jopt-7947
Two new endemic species of Monstera (Araceae: Monsteroideae: Monstereae) from Golfito in southern Costa Rica Marco Cedeño-Fonseca, Alistair Hay, Michael H. Grayum, Mario A. Blanco 123-132 PDF DOI: https://doi.org/10.36253/jopt-8091
Mats Thulin - The Genus Boswellia (Burseraceae). The Frankincense Trees Riccardo M. Baldini 133-134 PDF DOI: https://doi.org/10.36253/jopt-9299
