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| Registros recuperados: 63 | |
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| Pérez-Molphe-Balch,Eugenio; Santos-Díaz,María del Socorro; Ramírez-Malagón,Rafael; Ochoa-Alejo,Neftalí. |
| Cacti species are plants that are well adapted to growing in arid and semiarid regions where the main problem is water availability. Cacti have developed a series of adaptations to cope with water scarcity, such as reduced leaf surface via morphological modifications including spines, cereous cuticles, extended root systems and stem tissue modifications to increase water storage, and crassulacean acid metabolism to reduce transpiration and water loss. Furthermore, seeds of these plants very often exhibit dormancy, a phenomenon that helps to prevent germination when the availability of water is reduced. In general, cactus species exhibit a low growth rate that makes their rapid propagation difficult. Cacti are much appreciated as ornamental plants due to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cactaceae; Areole activation; Conservation; Micropropagation; Ornamental cactus. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600540 |
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| Katinas,Liliana; Gutiérrez,Diego G.; Torres Robles,Silvia S.. |
| A catalogue of the Cactaceae type material of Carlos Luis Spegazzini (1858-1926) deposited in the Herbarium of Museo de La Plata (LP), Argentina, is presented. Spegazzini´s collection of vascular plant types includes ca. 700 specimens. This analysis revealed 93 type specimens and photographs of the specimens of the family Cactaceae, 70 of which are deposited in LP. This article includes a list of original names arranged alphabetically, the current names with authors, the original citation or protologue, the exsiccatae followed by the type category, the photographs of the specimens taken by Spegazzini, and all significant observations. In addition, some photographs of living specimens taken by Spegazzini and a list of specimens not found in LP were also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: C. L. Spegazzini; Types; Cactaceae; Herbarium LP; Argentina. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932004000100010 |
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| VILLALOBOS,SORAYA; VARGAS,ORLANDO; MELO,SANDRA. |
| En este trabajo se caracteriza el sistema de uso, manejo, demanda y oferta potencial de Stenocereus griseus, un cactus columnar muy utilizado por la comunidad indígena Wayúu en la Guajira , Caribe colombiano. Actualmente el uso de S. griseus se restringe a la recolección de madera seca (“yotojoro”) para construcción de viviendas, la recolección de frutos para la alimentación, de tallos jóvenes para alimentos de cabras y para utilizarlos en cercas vivas. Una evaluación de los factores que afectan las poblaciones permitió determinar cinco categorías de daño: las ocasionadas por corte con machete (tipo I), insectos (tipo II), cabras (tipo III), aves (tipo IV) y viento (tipo V). La demanda anual de “yotojoro” está sujeta a la necesidad de construcción de los... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cactaceae; Conservación; Caribe colombiano; Guajira; Wayúu. |
| Ano: 2007 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2007000100008 |
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| Registros recuperados: 63 | |
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