Haseltonia 17

  • Cladistic analysis of Trichocereus (Cactaceae: Cactoideae: Trichocereeae) based on morphological data and chloroplast DNA sequences by Sofía Albesiano and Teresa Terrazas
  • Identity and neotypification of Cereus macrogonus, the type species of the genus Trichocereus (Cactaceae) by Sofía Albesiano and Roberto
  • Axillary branching of lateral cephalia of Coleocephalocereus (Cactaceae) by Root Gorelick and Marlon Machado
  • Morphology and anatomy of stem mines in Cipocereus minensis (Wender.) Ritter (Cactaceae), an endemic species to Eastern Brazilby Deusa D. Abreu, Emilia Arruda, G. Flávia A. Melo-de-Pinna and J. Hugo Cota-Sánchez
  • In vitro conservation of Turbinicarpus (Cactaceae) under slow growth conditions by Eugenio Pérez-Molphe-Balch, Martha Evelia Pérez-Reyes and Ma. De Lourdes De La Rosa-Carrillo
  • Chromosome counts of Opuntia (Cactaceae), prickly pear cacti, in the Midwestern United States and environmental factors restricting the distribution of Opuntia fragilis by Lucas C. Majure and Eric Ribbens
  • Typification of four North American club-chollas: The names of four Engelmannian species from Mexico and Southwestern United Statesby Rolando T. Bárcenas, Julie A. Hawkins and Fernando Chiang
  • Indian fig cactus (Opuntia ficus-indica (L.) Miller) in the Americas: An uncertain history by Gary N. Ervin
  • Sedum mesoamericanum (Crassulaceae), a new species from Mexico and Guatemala by Pablo Carrillo-Reyes and Miguel A. Pérez-Farrera
  • A first record of Yucca aloifolia L. (Agavaceae/ Asparagaceae) naturalized in South Africa with notes on its uses and reproductive biology by Gideon F. Smith, Estrela Figuieredo and Neil R. Crouch
  • Nomenclatural transfers from Manfreda Salisb., Polianthes L. and Bravoa Lex. to Agave L. (Agavaceae/Asparagaceae) by Joachim Thiede
  • Rhytidocaulon elegantissimum Hanacek & Ricanek, a new species from Yemen by Pavel Hanáček and Miroslav Řičánek

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