The Brazilian species of Elaphoglossum section Squamipedia (Dryopteridaceae) Fernando B. MatosJohn T. Mickel OriginalPaper 13 June 2019 Pages: 225 - 234
Parapolystichum villosissimum (Dryopteridaceae): A new and threatened species from Cuba Carlos SánchezPaulo H. Labiak OriginalPaper 19 February 2019 Pages: 235 - 241
Isachneburchellii (Poaceae, Micrairoideae) from Rio de Janeiro, Brazil – an endemic new species segregated from Isachne goiasensis Rodrigo S. RodriguesTarciso S. Filgueiras OriginalPaper 30 April 2019 Pages: 242 - 252
Resurrection of Carex ignota (Cyperaceae, section Laxiflorae), a long overlooked sedge of the southern U.S.A. Jenna E. Dorey Original Research 03 July 2019 Pages: 253 - 267
New circumscription, morphology and synopsis of Chamaecrista sect. Chamaecrista ser. Coriaceae (Leguminosae) Juliana Gastaldello RandoJosé Rubens PiraniGwilym Peter Lewis OriginalPaper 19 July 2019 Pages: 268 - 298
Two new species of Chamaecrista sect. Absus (Leguminosae, Casesalpinioideae) from Brazil and Bolivia with phylogenetic delimitation Alessandro Oliveira de SouzaRamon Guedes MatosMarcos José da Silva Original Research 24 July 2019 Pages: 299 - 311
A new record and emended description of a rare Amazonian white-sand species: Schoepfia clarkii (Schoepfiaceae) Francisco FarroñayRicardo De Oliveira PerdizAlberto Vicentini OriginalPaper 10 June 2019 Pages: 312 - 317
Eugenia ochracea (Myrtaceae, Myrteae), a new species from Atlantic forest of Espírito Santo, Brazil Karinne Sampaio ValdemarinFiorella F. MazineVinicius Castro Souza OriginalPaper 20 February 2019 Pages: 318 - 324
Nine new species of Dacryodes from Andean South America. Studies in neotropical Burseraceae XXIV María Cristina Martínez-HabibeDouglas C. Daly OriginalPaper 01 May 2019 Pages: 325 - 344
A new identity for Tetragastris panamensis. Studies in neotropical Burseraceae XXIX Douglas C. Daly OriginalPaper 29 May 2019 Pages: 345 - 346
A new species of Plutarchia (Ericaceae) from Chingaza National Natural Park, Colombia Nelson R. SalinasMaría F. GonzálezJulio Betancur Original Research 16 July 2019 Pages: 347 - 352
