Ceratozamia zaragozae Medellín-Leal (Zamiaceae), an endangered Mexican cycad: New information on population structure and spatial distribution Pedro Castillo-LaraPablo Octavio-AguilarJosé Arturo De-Nova OriginalPaper 22 December 2017 Pages: 155 - 165
A new scaly tree fern (Cyathea: Cyatheaceae) from Colombia Adrian TejedorGloria CalatayudMichael Kessler OriginalPaper 22 December 2017 Pages: 166 - 172
The Brazilian species of Elaphoglossum section Setosa (Dryopteridaceae) Fernando B. MatosJohn T. Mickel OriginalPaper 23 January 2018 Pages: 173 - 205
Elaphoglossum litanum (Dryopteridaceae), an older name for E. megalurum from the Andes and E. subciliatum from Central America Robbin C. MoranFernando B. Matos OriginalPaper 09 January 2018 Pages: 206 - 213
Rediscovery of Phaedranassa carmiolii (Amaryllidaceae), an endangered species from Costa Rica José Esteban JiménezPedro JuárezJosé Miguel Chaves-Fallas OriginalPaper 22 January 2018 Pages: 214 - 220
An undescribed and overlooked species of Sloanea (Elaeocarpaceae) from the Ecuadorian Amazon Juan Ernesto Guevara AndinoDiana Fernández-FernándezNigel C. A. Pitman OriginalPaper 26 December 2017 Pages: 221 - 226
Sloanea cuautitlanensis (Elaeocarpaceae), una especie nueva de árbol para México Ramón Cuevas-GuzmánJuan Luis Mendoza-CortésNora M. Núñez-López OriginalPaper 23 January 2018 Pages: 227 - 232
A new species of Canavalia (Leguminosae, Papilionoideae) subgenus Wenderothia from the Colombian and Venezuelan Llanos Cristiane SnakGerardo A. Aymard CLuciano Paganucci de Queiroz OriginalPaper 29 January 2018 Pages: 233 - 240
Chamaecrista elata (Leguminosae, Caesalpinioideae), a new species from the highlands of Goiás, Brazil Alessandro Oliveira de SouzaMarcos José da Silva OriginalPaper 23 January 2018 Pages: 241 - 247
Sphedamnocarpus andersonii (Malpighiaceae), a new species from Madagascar Christiane Anderson OriginalPaper 22 December 2017 Pages: 248 - 251
Stemodia perfoliata (Plantaginaceae): A 200 year old new species from the Caatinga of Minas Gerais, Brazil André Vito ScatignaVinicius Castro SouzaAndré Olmos Simões OriginalPaper 06 February 2018 Pages: 252 - 256
Environmental change in the terrestrial vegetation of Bermuda: Revisiting Harshberger (1905) Saskia WolsakDavid WingateQuentin Cronk OriginalPaper 08 January 2018 Pages: 257 - 275