A new species of Blakea (Melastomataceae) from Panama with foliaceous sepal appendages and zygomorphic flowers Ricardo KriebelDaniel Santamaría OriginalPaper 21 March 2013 Pages: 1 - 4
Two new Agave species (Agavaceae) from central Arizona and their putative pre-Columbian domesticated origins Wendy C. HodgsonAndrew M. Salywon OriginalPaper 21 March 2013 Pages: 5 - 15
A taxonomic revision of Pleiochiton (Melastomataceae, Miconieae) Marcelo ReginatoJosé Fernando Andrade BaumgratzRenato Goldenberg OriginalPaper 21 March 2013 Pages: 16 - 41
Revision of Plerandra (Araliaceae). I. A synopsis of the genus with an expanded circumscription and a new infrageneric classification Porter P. Lowry IIGregory M. PlunkettDavid G. Frodin OriginalPaper 21 March 2013 Pages: 42 - 61
A new species of Bursera (Burseraceae) from Cuba María Cristina Martínez-HabibeDouglas C. DalyPedro Herrera-Oliver OriginalPaper 21 March 2013 Pages: 62 - 65
Taxonomic studies in the Miconieae (Melastomataceae). X. Revision of the species of the Miconia crotonifolia complex Walter S. JuddGretchen M. Ionta OriginalPaper 21 March 2013 Pages: 66 - 95
A new species of Trichosalpinx (Orchidaceae: Pleurothallidinae) from Costa Rica Melania FernándezDiego Bogarín OriginalPaper 21 March 2013 Pages: 96 - 101
A new species of Cyclopogon (Orchidaceae: Spiranthinae) from São Paulo, Brazil Emerson R. Pansarin OriginalPaper 21 March 2013 Pages: 102 - 105
Magnolia jaenensis y M. manguillo, nuevas especies de Magnoliaceae del norte de Perú José Luis Marcelo-PeñaFrank Arroyo OriginalPaper 21 March 2013 Pages: 106 - 112
An older name for Lomentaria baileyana (Harvey) Farlow (Rhodymeniales, Rhodophyta) Michael J. Wynne OriginalPaper 21 March 2013 Pages: 113 - 117