Spore morphology of the Mexican species of the Elaphoglossum petiolatum complex (Dryopteridaceae) Ana Gabriela Martínez-BecerrilEloy SolanoAlejandra Vasco Original Research 06 January 2021 Pages: 131 - 142
Three new species of Oleandra (Oleandraceae, Polypodiopsida) from the Neotropics, and notes on the morphological groups among the Neotropical species Cecília V. MirandaPedro B. SchwartsburdJefferson Prado Original Research 04 May 2021 Pages: 143 - 151
Pleopeltis guttisquamata (Polypodiaceae): a new epiphytic fern from the inselbergs of Espírito Santo, Brazil Nelson Túlio Lage PenaPedro Bond Schwartsburd Original Research 25 February 2021 Pages: 152 - 159
Two new species of Cephalocarpus (Cryptangieae, Cyperaceae) from the Venezuelan Guayana Highland Suzana Maria CostaMaria do Carmo Estanislau do AmaralWilliam Wayt Thomas Original Research 19 March 2021 Pages: 160 - 166
Two new species of Merostachys (Poaceae: Bambusoideae: Bambuseae) from the Brazilian Atlantic Forest in the states of Espírito Santo and Minas Gerais Ronaldo Vinícius-SilvaLynn G. ClarkAna Paula Santos-Gonçalves Original Research 14 January 2021 Pages: 167 - 177
Alfred Prentice Young (1841–1919), an overlooked plant collector in India, and description of the new species, Commelina youngii (Commelinaceae) Mayur Dhondiram Nandikar Original Research 19 March 2021 Pages: 178 - 188
Una nueva especie de Allomaieta (Melastomataceae: Cyphostyleae) de ColombiaA new species of Allomaieta (Melastomataceae: Cyphostyleae) from Colombia Jhon S. Murillo-SernaHeriberto David-Higuita Original Research 12 April 2021 Pages: 189 - 194
A new addition to the stoloniferous Sonerila (Sonerileae, Melastomataceae) from southern Western Ghats, India Sekarathil ResmiSanthosh Nampy Original Research 25 March 2021 Pages: 195 - 202
Bonamia eustachioi (Convolvulaceae), a new species from the Brazilian Cerrado and Caatinga André Luiz da Costa MoreiraRoberta Keyla KojimaTaciana Barbosa Cavalcanti Original Research 22 March 2021 Pages: 203 - 210
Chromolucuma brevipedicellata (Sapotaceae, Chrysophylloideae), a new tree species from central Amazonia, Brazil Caroline da Cruz VasconcelosIsolde Dorothea Kossmann FerrazMário Henrique Terra-Araujo Original Research 25 March 2021 Pages: 211 - 219
Camellia flosculora: a new species of Camellia section Thea series Sinenses (Theaceae) from Vietnam Van Son LeAnthony S. CurryThi Lieu Nguyen Original Research 27 January 2021 Pages: 220 - 228
Notes on Zanthoxylum magnifructum (Rutaceae), a recently described species from tropical dry forest in Colombia: floral morphology, geographical distribution and sexual dimorphism Yeison Londoño-EcheverriÁlvaro Idárraga-PiedrahítaJáider Jiménez-Montoya Original Research 14 January 2021 Pages: 229 - 235
Amyris conzattii Standl. (Rutaceae), a case of false identity Lizetth Jimena Hernández-BarónAdolfo Espejo-SernaRosa Cerros-Tlatilpa Original Research 23 February 2021 Pages: 236 - 240