1. A new species of Blakea (Melastomataceae) from Panama with foliaceous sepal appendages and zygomorphic flowers

   • Ricardo Kriebel
   • Daniel Santamaría

   OriginalPaper 21 March 2013 Pages: 1 - 4

   

2. Two new Agave species (Agavaceae) from central Arizona and their putative pre-Columbian domesticated origins

   • Wendy C. Hodgson
   • Andrew M. Salywon

   OriginalPaper 21 March 2013 Pages: 5 - 15

   

3. A taxonomic revision of Pleiochiton (Melastomataceae, Miconieae)

   • Marcelo Reginato
   • José Fernando Andrade Baumgratz
   • Renato Goldenberg

   OriginalPaper 21 March 2013 Pages: 16 - 41

   

4. Revision of Plerandra (Araliaceae). I. A synopsis of the genus with an expanded circumscription and a new infrageneric classification

   • Porter P. Lowry II
   • Gregory M. Plunkett
   • David G. Frodin

   OriginalPaper 21 March 2013 Pages: 42 - 61

   

5. A new species of Bursera (Burseraceae) from Cuba

   • María Cristina Martínez-Habibe
   • Douglas C. Daly
   • Pedro Herrera-Oliver

   OriginalPaper 21 March 2013 Pages: 62 - 65

   

6. Taxonomic studies in the Miconieae (Melastomataceae). X. Revision of the species of the Miconia crotonifolia complex

   • Walter S. Judd
   • Gretchen M. Ionta

   OriginalPaper 21 March 2013 Pages: 66 - 95

   

7. A new species of Trichosalpinx (Orchidaceae: Pleurothallidinae) from Costa Rica

   • Melania Fernández
   • Diego Bogarín

   OriginalPaper 21 March 2013 Pages: 96 - 101

   

8. A new species of Cyclopogon (Orchidaceae: Spiranthinae) from São Paulo, Brazil

   • Emerson R. Pansarin

   OriginalPaper 21 March 2013 Pages: 102 - 105

   

9. Magnolia jaenensis y M. manguillo, nuevas especies de Magnoliaceae del norte de Perú

   • José Luis Marcelo-Peña
   • Frank Arroyo

   OriginalPaper 21 March 2013 Pages: 106 - 112

   

10. An older name for Lomentaria baileyana (Harvey) Farlow (Rhodymeniales, Rhodophyta)

    • Michael J. Wynne

    OriginalPaper 21 March 2013 Pages: 113 - 117