New records of the rare North American endemic Chara brittonii (Characeae), with comments on its distribution Kenneth G. KarolMitchell S. AlixJohn D. Hall OriginalPaper 04 April 2018 Pages: 277 - 288
Geographic distribution, habitat characterization, and conservation status of Bolboschoenus bulrushes (Cyperaceae) in the Hudson River Estuary, USA Robert F. C. NacziScottie L. SheafferCharles J. Zimmerman OriginalPaper 29 May 2018 Pages: 289 - 305
Magnolia brasiliensis (Magnoliaceae), a new species and new record for the Northeastern region of Brazil Cecília Oliveira de AzevedoLucas Cardoso MarinhoJ. Antonio Vázquez-García OriginalPaper 03 May 2018 Pages: 306 - 311
The Ocotea aureotomentosa (Lauraceae) hypothesis based on the morphological line of evidence Leandro C. S. AssisCaroline C. A. SilvaIone S. H. Salim OriginalPaper 14 May 2018 Pages: 312 - 315
Novedades taxonómicas del género Schefflera (Araliaceae) para Colombia Jáider Jiménez-MontoyaÁlvaro Idárraga-Piedrahíta OriginalPaper 06 March 2018 Pages: 316 - 323
Two new species of Arachnothryx (Rubiaceae) from Oaxaca, Mexico Alejandro Torres-MontúfarHelga Ochoterena OriginalPaper 12 March 2018 Pages: 324 - 332
A new species of Protium from Guyana. Studies in Neotropical Burseraceae XXIII Douglas C. Daly OriginalPaper 22 March 2018 Pages: 333 - 336
Rediscovery of Banisteriopsis magdalenensis (Malpighiaceae): Notes on morphology, distribution, and ecology of an endemic and threatened species from the Atlantic Forest of Brazil Rafael Felipe de AlmeidaRaquel NegrãoGustavo Martinelli OriginalPaper 09 April 2018 Pages: 337 - 341
Recognition of Miconia sect. Sagraeoides (Melastomataceae: Miconieae) and associated nomenclatural changes J. Dan Skean JrWalter S. JuddGretchen M. Ionta OriginalPaper 14 May 2018 Pages: 342 - 355
Assembling the puzzle of Byrsonima fanshawei (Malpighiaceae): Emended description and new records for a rare species Augusto FrancenerRafael Felipe de AlmeidaMaria Candida Henrique Mamede OriginalPaper 16 May 2018 Pages: 356 - 363
A new Zamia (Zamiaceae) from Colombia Dennis Wm. StevensonDairon Cárdenas LópezNicolás Castaño Arboleda OriginalPaper 19 June 2018 Pages: 364 - 368
Chromosome counts in Chaetogastra (Melastomataceae, Melastomateae) Fabrício Schmitz MeyerKlenya Rocha BragaRenato Goldenberg OriginalPaper 15 February 2018 Pages: 369 - 376
Correction to: Chromosome counts in Chaetogastra (Melastomataceae, Melastomateae) Fabrício Schmitz MeyerKlenya Rocha BragaRenato Goldenberg Correction 11 May 2018 Pages: 377 - 377
