Two new species of Serjania (Sapindaceae) from southeastern Brazil Pedro Acevedo-RodríguezGenise Vieira Somner Articles Pages: 477 - 481
Mitracarpus longicalyx (Rubiaceae, Spermacoceae), a new species from northeastern Brazil Elnatan Bezerra de SouzaMargareth Ferreira De Sales Articles Pages: 482 - 486
A new species in the Elaphoglossum petiolatum complex (Elaphoglossaceae) from Mexico John T. Mickel Articles Pages: 487 - 489
Morphology, anatomy, and taxonomic position of Pagameopsis (Rubiaceae-Rubioideae) Frederic PiesschaertSteven JansenErik Smets Articles Pages: 490 - 504
Two new species of Physalis (Solanaceae) endemic to Jalisco, Mexico Ofelia VargasMahinda MartínezPatricia Dávila A. Articles Pages: 505 - 510
Inter-simple sequence repeat (ISSR) diversity within Monarda fistulosa var. brevis (Lamiaceae) and divergence between var. brevis and var. fistulosa in West Virginia Rebecca T. KimballDaniel J. CrawfordP. J. Harmon Articles Pages: 511 - 518
Germination strategies of palms: the case of Schippia concolor Burret in Belize Claudio Urbano B. Pinheiro Articles Pages: 519 - 527
Studies on Mexican Cactaceae. II. Opuntia megarrhiza, a poorly known endemic from San Luis Potosí, Mexico Héctor M. HernándezCarlos Gómez-HinostrosaRolando T. Bárcenas Articles Pages: 528 - 533
Two new species of Campomanesia (Myrtaceae) from Espírito Santo and Bahia, Brazil Leslie R. Landrum Articles Pages: 534 - 538
Lipochaeta and Melanthera (Asteraceae: Heliantheae subtribe Ecliptinae): establishing their natural limits and a synopsis Warren L. WagnerHarold Robinson Articles Pages: 539 - 561