1. Dr. Moses Cousins Jr.: The mysterious Iowa contributor to Alphonso Wood’s Class-book of Botany

   • Thomas G. Lammers

   OriginalPaper 31 May 2017 Pages: 253 - 264

2. Relationships in the Botrychium campestre (Ophioglossaceae) complex

   • Donald R. Farrar
   • Arthur V. Gilman

   OriginalPaper 09 March 2017 Pages: 265 - 275

   

3. What the Penaeaceae alliance (Myrtales) tells us about the nature of vestured pits in xylem

   • Sherwin Carlquist

   OriginalPaper 08 June 2017 Pages: 276 - 294

   

4. Diplazium hybrids involving D. plantaginifolium and D. ternatum from Mexico and Central America

   • Weston L. Testo
   • Michael Sundue
   • Alejandra Vasco

   OriginalPaper 25 April 2017 Pages: 295 - 306

   

5. ×Cyclobotrya: A new hybrid genus between Cyclodium and Polybotrya (Dryopteridaceae) from the Brazilian Amazon

   • Mathias Erich Engels
   • Bianca Kalinowski Canestraro

   OriginalPaper 10 March 2017 Pages: 307 - 312

   

6. Taxonomic and nomenclatural notes concerning Ormopteris and Pellaea (Pteridaceae) in Brazil

   • Jefferson Prado
   • Regina Y. Hirai
   • Eric Schuettpelz

   OriginalPaper 14 April 2017 Pages: 313 - 315

7. A new species and a new combination in Ctenitis (Dryopteridaceae) from South America

   • Raquel Stauffer Viveros
   • Alexandre Salino

   OriginalPaper 24 March 2017 Pages: 316 - 322

   

8. Spiranthes igniorchis (Orchidaceae), a new and rare cryptic species from the south-central Florida subtropical grasslands

   • Matthew C. Pace
   • Steve L. Orzell
   • Kenneth M. Cameron

   OriginalPaper 31 May 2017 Pages: 323 - 339

   

9. Eschweilera correae (Lecythidaceae), a new species from the cloud forests of Panama and Costa Rica

   • Juvenal E. Batista G.
   • Scott A. Mori

   OriginalPaper 14 April 2017 Pages: 340 - 346

   

10. Cuatro especies nuevas de Indigofera (Leguminosae, Papilionoideae) para la Flora de México

    • RAMIRO CRUZ DURÁN
    • MARIO SOUSA S.

    OriginalPaper 03 April 2017 Pages: 347 - 358

    

11. Two new species of Henriettea (Melastomataceae, Henrietteeae) for the flora of the Greater Antilles

    • Wilder Carmenate-Reyes
    • Fabián A. Michelangeli
    • Eldis R. Bécquer

    OriginalPaper 08 March 2017 Pages: 359 - 369

    

12. Miconia complanata (Miconieae: Melastomataceae), a new species from the border between Ecuador and Peru

    • Janelle M. Burke
    • Fabian Michelangeli
    • Diana Fernández-Fernández

    OriginalPaper 03 April 2017 Pages: 370 - 375

    

13. Four new species of Trattinnickia from South America. Studies in Neotropical Burseraceae XXII

    • Douglas C. Daly
    • Maria da Fatima Melo

    OriginalPaper 14 April 2017 Pages: 376 - 386

    

14. Taxonomic revision of the genus Catalpa (Bignoniaceae)

    • Richard T. Olsen
    • Joseph H. Kirkbride Jr

    OriginalPaper Open access 25 April 2017 Pages: 387 - 421