Haseltonia 19

    Contents
    • Embryology and seed development in Pereskia lychnidiflora (Cactaceae)
      Karina Jiménez-Durán, Salvador Arias-Montes, Aurea Cortés-Palomec & Judith Márquez-Guzmán
    • Axillary branching of lateral cephalia in Cactaceae is not constrained by tilting of shoot apices
      Root Gorelick
    • Morphological and nectar traits in Echeveria rosea Lindley (Crassulaceae) linked to hummingbird pollination in central Veracruz, Mexico
      H. David Jimeno-Sevilla, Angélica M. Hernández-Ramírez, Juan Francisco Ornelas & Silvana Marten-Rodríguez
    • The distribution of cirio (Fouquieria columnaris) in Baja California, Mexico
      Robert H. Webb, Mario Salazar-Ceseña & Raymond M. Turner
    • Nutritional composition of Opuntia sulphurea G. Don cladodes
      Valeria P. Carreira, Julian Padró, Nicolás Mongiardino Koch, Pedro Fontanarrosa, Ignacio Alonso & Ignacio M. Soto
    • Micropropagation of cacti—a review
      Justyna Lema-Rumińska & Dariusz Kulus
    • A new shrubby species of Aloe in the Imatong Mountains, Southern Sudan
      Tom McCoy & Leonard E. Newton
    • The small-flowered Afro-Arabian species of Huernia
      Darrel C. H. Plowes
    • Agave azurea (Agavaceae), a new species from Baja California Sur, México, with notes on other agaves on the Vizcaíno Peninsula
      Robert H. Webb & Greg Starr

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