Badiera subrhombifolia (Polygalaceae), a new species from Hispaniola J. Richard AbbottWalter S. Judd OriginalPaper 09 June 2011 Pages: 161 - 170
Before it had a name: Diagnostic characteristics, geographic distribution, and the conservation of Cupressus tonkinensis (Cupressaceae) Damon P. LittlePhilip ThomasLôc K. Phan OriginalPaper 09 June 2011 Pages: 171 - 196
Una nueva especie de Pseudomiltemia (Rubiaceae) de Chiapas, México Ruben Martínez-CamiloNayely Martínez-MelendezDavid H. Lorence OriginalPaper 09 June 2011 Pages: 197 - 202
Agave turneri (Agavaceae), a new species from northeastern Baja California, Mexico Robert H. WebbJ. Mario Salazar-Ceseña OriginalPaper 09 June 2011 Pages: 203 - 210
Una nueva especie de Salvia (Lamiaceae) de Guerrero, México Martha Martínez-GordilloLucio Lozada-Pérez OriginalPaper 09 June 2011 Pages: 211 - 214
Colletoecema gabonensis, a third species of an unusual African genus of Rubiaceae Steven DesseinOlivier LachenaudBonaventure Sonké OriginalPaper 09 June 2011 Pages: 215 - 219
Two new species of Leandra from Espírito Santo, Brazil Eduardo A. CamargoRenato Goldenberg OriginalPaper 09 June 2011 Pages: 220 - 226
Two news species of Erythroxylum (Erythroxylaceae) from Ecuador and Peru Orlando Adolfo Jara-Muñoz OriginalPaper 09 June 2011 Pages: 227 - 232
Alansmia, a new genus of grammitid ferns (Polypodiaceae) segregated from Terpsichore Michael KesslerAna Laura Moguel VelázquezPaulo H. Labiak OriginalPaper 09 June 2011 Pages: 233 - 244
A new species of Miconia (Melastomataceae) from Amazonas, Brazil Renato GoldenbergMayara Krasinski CaddahFabian A. Michelangeli OriginalPaper 09 June 2011 Pages: 245 - 249
Clethra hirsutovillosa (Clethraceae), una especie nueva de la Depresión del Balsas en el estado de Guerrero, México Susana Valencia AvalosRamiro Cruz Durán OriginalPaper 09 June 2011 Pages: 250 - 256
Andean Vaccinium (Ericaceae: Vaccinieae): Seven new species from South America Paola Pedraza-PeñalosaJames L. Luteyn OriginalPaper 09 June 2011 Pages: 257 - 275
A new species of Stylogyne (Myrsinaceae) from the Atlantic Forest of Brazil Tatiana Tavares CarrijoMaria de Fátima FreitasAriane Luna Peixoto OriginalPaper 09 June 2011 Pages: 276 - 280
A new species of Almeidea (Galipeinae, Galipeeae, Rutaceae) from Eastern Brazil Carla P. BrunieraCláudia Inês da SilvaMilton Groppo OriginalPaper 09 June 2011 Pages: 281 - 285
Dos especies nuevas de Borreria (Rubiaceae), un nuevo registro de Declieuxia y observaciones taxonómicas Roberto M. SalasDaniel SotoElsa L. Cabral OriginalPaper 09 June 2011 Pages: 286 - 294
Pteris exigua (Pteridaceae), a new endemic species from Tucumano-Boliviano forests in northwestern Argentina Olga G. MartínezJefferson Prado OriginalPaper 09 June 2011 Pages: 295 - 299
Cinco especies nuevas de Aechmea (Bromeliaceae: Bromelioideae) para Colombia Julián Aguirre-Santoro Julio Betancur OriginalPaper 09 June 2011 Pages: 300 - 313
Chirita luochengensis (Gesneriaceae), a new species from limestone areas in northern Guangxi, China Wei-Bin XuYu-Song HuangYan Liu OriginalPaper 09 June 2011 Pages: 314 - 317
Erratum to: Two new species of Myrtaceae (Myrteae) from northern South America Carolyn E. B. ProençaLaura V. S. JenningsEve J. Lucas Erratum 09 June 2011 Pages: 318 - 319