1. Ceratozamia zaragozae Medellín-Leal (Zamiaceae), an endangered Mexican cycad: New information on population structure and spatial distribution

   • Pedro Castillo-Lara
   • Pablo Octavio-Aguilar
   • José Arturo De-Nova

   OriginalPaper 22 December 2017 Pages: 155 - 165

   

2. A new scaly tree fern (Cyathea: Cyatheaceae) from Colombia

   • Adrian Tejedor
   • Gloria Calatayud
   • Michael Kessler

   OriginalPaper 22 December 2017 Pages: 166 - 172

   

3. The Brazilian species of Elaphoglossum section Setosa (Dryopteridaceae)

   • Fernando B. Matos
   • John T. Mickel

   OriginalPaper 23 January 2018 Pages: 173 - 205

   

4. Elaphoglossum litanum (Dryopteridaceae), an older name for E. megalurum from the Andes and E. subciliatum from Central America

   • Robbin C. Moran
   • Fernando B. Matos

   OriginalPaper 09 January 2018 Pages: 206 - 213

   

5. Rediscovery of Phaedranassa carmiolii (Amaryllidaceae), an endangered species from Costa Rica

   • José Esteban Jiménez
   • Pedro Juárez
   • José Miguel Chaves-Fallas

   OriginalPaper 22 January 2018 Pages: 214 - 220

   

6. An undescribed and overlooked species of Sloanea (Elaeocarpaceae) from the Ecuadorian Amazon

   • Juan Ernesto Guevara Andino
   • Diana Fernández-Fernández
   • Nigel C. A. Pitman

   OriginalPaper 26 December 2017 Pages: 221 - 226

   

7. Sloanea cuautitlanensis (Elaeocarpaceae), una especie nueva de árbol para México

   • Ramón Cuevas-Guzmán
   • Juan Luis Mendoza-Cortés
   • Nora M. Núñez-López

   OriginalPaper 23 January 2018 Pages: 227 - 232

   

8. A new species of Canavalia (Leguminosae, Papilionoideae) subgenus Wenderothia from the Colombian and Venezuelan Llanos

   • Cristiane Snak
   • Gerardo A. Aymard C
   • Luciano Paganucci de Queiroz

   OriginalPaper 29 January 2018 Pages: 233 - 240

   

9. Chamaecrista elata (Leguminosae, Caesalpinioideae), a new species from the highlands of Goiás, Brazil

   • Alessandro Oliveira de Souza
   • Marcos José da Silva

   OriginalPaper 23 January 2018 Pages: 241 - 247

   

10. Sphedamnocarpus andersonii (Malpighiaceae), a new species from Madagascar

    • Christiane Anderson

    OriginalPaper 22 December 2017 Pages: 248 - 251

    

11. Stemodia perfoliata (Plantaginaceae): A 200 year old new species from the Caatinga of Minas Gerais, Brazil

    • André Vito Scatigna
    • Vinicius Castro Souza
    • André Olmos Simões

    OriginalPaper 06 February 2018 Pages: 252 - 256

    

12. Environmental change in the terrestrial vegetation of Bermuda: Revisiting Harshberger (1905)

    • Saskia Wolsak
    • David Wingate
    • Quentin Cronk

    OriginalPaper 08 January 2018 Pages: 257 - 275