Volume 12, No. 1 (June 2007) online at BioOne.

  • Dressler, R. L., and D. Bogarin (pp. 1-6)
    A new and bizarre species in the genus Condylago (Orchidaceae: Pleurothallidinae) from Panama
  • Pupulin, F. (pp. 7-14)
    A new species of Stenia (Orchidaceae: Zygopetalinae) from Ecuador, with a note on Stenia stenioides
  • Pupulin, F. (pp. 15-154)
    Contributions toward a reassessment of Costa Rican Zygopetalinae (Orchidaceae). 3. A systematic revision of the genus Dichaea in Costa Rica
  • Pupulin, F., G. A. Rojas, and J. D. Zuniga (pp. 155-162)
    Three new species of Acianthera (Orchidaceae: Pleurothallidinae) from Costa Rica
  • Takeuchi, W. (pp. 163-172)
    Some notes on Ericaceae from recent expeditions to New Guinea's summit environments
  • Carlson, M. M., and T. B. Croat (pp. 173-234)
    Taxonomic revision of Anthurium section semaeophyllum Schott (Araceae)
  • Windham, M. D. and I. A. Al-Shehbaz (pp. 235-)
    New and noteworthy species of Boechera (Brassicaceae) III: Additional sexual diploids and apomictic hybrids