cactus

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cactus

A regionally popular short form for
(1) Peyote, or
(2) Mescaline.

cactus

the common name for members of the family Cactaceae, all of which, with one possible exception (Rhipsalis), are native to the continent of America. Most cacti are XEROPHYTES and succulents, found in deserts which have infrequent but heavy rainfall; cacti are absent from deserts with little or no rainfall. Epiphylum species and their relatives are found in rain forests and are chiefly EPIPHYTES. Cacti are distinguished from other succulents by having an areole, a pin-cushion type of structure from which wool, spines, new shoots and flowers develop. Other succulents do not possess an areole even though spines may be present.
References in periodicals archive ?
Comparative stem anatomy in the subfamily Cactoideae. The Botanical Review 68: 444-473.
El habito y la forma de crecimiento en la tribu Cacteae (Cactaceae, Cactoideae).
This species previously reported as a species of little economic significance (Hodges & Hodges 2009), is now causing severe damage in Puerto Rico to several species of native columnar cacti in the subfamily Cactoideae (Zimmermann & Perez Sandi Cuen 2010).
Se concluye que algunas caracteristicas morfologicas de los frutos y las semillas pueden apoyar futuros estudios de sistematica en los generos de Cactoideae y que el conocimiento generado contribuira a su uso potencial y conservacion.
Conclui-se que algumas caracteristicas morfologicas dos frutos e as sementes podem apolar futuros estudos de sistematica nos generos de Cactoideae e que o conhecimento gerado contribuira a seu uso potencial e conservacao.
Cactoideae seeds show considerable variation in their shape, size, structure and testa color (Barthlott and Hunt, 2000).
Barthlott W, Hunt D (2000) Seeds diversity in the Cactaceae subfamily Cactoideae. Succ.
La reduccion en tamano de los cotiledones ha sido observada en diversas especies de Cactoideae y contrasta con el mayor desarrollo de su hipocotilo, posiblemente porque es en el hipocotilo y no en los cotiledones donde se almacenan las reservas durante el desarrollo postgerminativo (Barthlott y Voit, 1979).
Loza-Cornejo S, Terrazas T (2003) Epidermal and hypodermal characteristics in North American Cactoideae (Cactaceae).
Cactoideae is highly diverse in terms of numbers, with 105 genera and nearly 1600 species grouped in it.
He subdivided his Cereoideae (= Cactoideae) into three tribes: Echinocacteae, containing columnar and globular genera, such as Cephalocereus, Cereus, Echinocactus, Echinocereus, Echinopsis, Epiphyllum, Leuchtenbergia, Melocactus, Phyllocactus, and Pilocereus; Mammillarieae, currently Cacteae, with the genera Mammillaria and Pelecyphora; and Rhipsalideae, which grouped Hariota, Pfeiffera, and Rhipsalis.