Author: Madmin

  • PACHYCEREUS

    Autor: (Berger) Britton & Rose • ETYMOLOGY “Thick Cereus “, referring to the massive size of the columnar stems in this genus. • DESCRIPTION A genus of treelike, massive columnar plants, often strongly branched (P. weberi), ribs 7-17, sometimes bearing a pseudocephalium. Areoles rounded to elliptic, felted, usually connected by a interareolar groove in the reproductive…

  • ORTEGOCACTUS

    Autor: Alexander • ETYMOLOGY Genus honouring Francisco Ortega’s family, a Zapotee Indian guide from San Jose Lachiguiri, Oaxaca, Mexico, who discovered the species for MacDougall. Portrait is unknown. • DESCRIPTION Monotypic genus of low growing plants at first solitary, becoming caespitose, with stems globose to shortly elongated, pale greyish-green. Tubercles arranged spirally, more or less flattened…

  • OROYA

    Autor: Britton & Rose • ETYMOLOGY Native of the mining region of La Oroya, in Peru, which gives its name to the genus. • DESCRIPTION A genus of low, subglobose flattened plants, with the apex depressed, sometimes becoming elongated with age, usually solitary, sometimes in groups, with tuberous roots, with epidermis fresh green to olive-green. Ribs…

  • OREOCEREUS

    Autor: (Berger) Riccobono • ETYMOLOGY ≪Mountain cereus≫, referring to the preferred habitat of the genus. • DESCRIPTION A genus of ascending to erect, columnar, bushy to shrubby plants, branching from the base, reaching up to 3 m high, more or less covered with white setose hairs and spines according to species. Numerous ribs (10-25), rounded, tuberculate,…

  • OPUNTIA

    Autor: Miller • ETYMOLOGY Genus allegedly native of Opos, botanical Latin name of an ancient Greek village near Locria on the coast of Euboea (or Evia), Opountis in Greek, known for the presence of many spiny plants (except Opuntia). Opos is also mentioned in the Iliad. • DESCRIPTION A genus of shrubby to treelike plants, often…