Haseltonia 09

Weighing in at a hefty 168 pages, Volume 9 is our biggest issue of Haseltonia to date. The rarity and distributions of Canadian cacti are discussed in this issue, and continuing our tradition of presenting ethnobotanical reports, the human uses of cacti in Argentina are presented. This issue is also a perfect introduction to the scientific study of cacti, as articles on describing, typifying, hybridizing and classifying cacti (by both molecular and morphological techniques) bring a wide range of studies on cactus evolution and discovery to light. Continuing Echeveria work by Uhl is found here, as well as the descriptions of several new taxa: one Epiphllum (whose flower is presented on the cover), one Aloe, and two varieties of Echeveria.



  • Guest Editorial: Plants, money and research by Charles H. Uhl
  • Epiphyllum baueri Dorsch, a new species from Colombia and Panamaby Rudi Dorsch
  • Biological characteristics and nutritive value of aborted flowers of the cardón (Pachycereus pringlei, Cactaceae) in Baja California Sur, Mexico by Jose Luis Léon de la Luz, Reymundo Dominguez-Cadena & Alfonso Medel-Narváez
  • A new species of Aloe on the Ethiopia-Sudan border by Leonard E. Newton
  • Taxonomy, distribution, rarity status and uses of Canadian cacti by J. Hugo Cota-Sánchez
  • The edible Harrisia (Cactaceae) species of the Gran Chaco by Gustavo F. Scarpa & Pastor Arenas
  • Ectotropis N. E. Br.—lost, found, and fragile by Steven Hammer & Tony Dold
  • The utilization of cacti in the upper Rio Bermejo basin, Salta, Argentinaby Norma Hilgert & Roberto Kiesling
  • The varieties of Echeveria chiclensis (Crassulaceae), an endemic Peruvian species by Guillermo Pino
  • Studies on Mexican Cactaceae. III. A new hybrid in the genus Opuntiaby Héctor M. Hernandez, Carlos Gómez-Hinostrosa & Rolando T. Bárcenas
  • Chromosome numbers and their significance in some Opuntioideae and Cactoideae (Cactaceae) of mainland Ecuador and Peru by Marc A. Baker
  • The typification of Cereus pteranthus Link ex A. Dietr. (Selenicereus pteranthus (Link ex A. Dietr.) Britt. & Rose) by Ralf Bauer
  • Experimental hybridization between Echinomastus intertextus and E. warnockii (Cactaceae) by A. Michael Powell
  • Grusonia pulchella classification and its impacts on the genusGrusonia: morphological and molecular evidence by M. Patrick Griffith
  • The genus Pseudorhipsalis Britton & Rose by Ralf Bauer
  • Chromosomes and hybrids of Echeveria (Crassulacee). VII. Series Gibbiflorae (Baker) Berger by Charles H. Uhl
  • Synopsis of the Cactaceae of Mato Grosso, Brazil by Urs Eggli


Front Cover: The distinctive flower of Epiphyllum baueri Dorsch, a new species published in this issue. As epiphyllums are rather large and conspicuous plants, new species are now rarely discovered, the last one (E. laui) being published in 1990. E. baueri is distinguished by its reflexed tepals and clustered fascicle of stamens that closely surround the style. Photo: Ralf Bauer.  

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