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Molecular phylogenetics of the Brazilian giant bromeliads (Alcantarea, Bromeliaceae): implications for morphological evolution and biogeography.
- L. Versieux, T. Barbará, M. G. L. Wanderley, A. Calvente, M. Fay, C. Lexer
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 July 2012
The genus Alcantarea comprises near 30 species endemic to rocky outcrops from eastern Brazil. Most species are ornamental and several are threatened due to habitat loss and over collection. In this… Expand
Stem anatomy of Rhipsalis (Cactaceae) and its relevance for taxonomy
- A. Calvente, R. H. P. Andreata, R. C. Vieira
- Biology
- Plant Systematics and Evolution
- 20 June 2008
Several species of the genus Rhipsalis (Cactaceae) are extremely important as ornamentals and are endangered in their natural habitat. However, only a few studies have addressed its taxonomy,… Expand
Molecular phylogeny of tribe Rhipsalideae (Cactaceae) and taxonomic implications for Schlumbergera and Hatiora.
- A. Calvente, D. Zappi, F. Forest, L. Lohmann
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 March 2011
Tribe Rhipsalideae is composed of unusual epiphytic or lithophytic cacti that inhabit humid tropical and subtropical forests. Members of this tribe present a reduced vegetative body, a specialized… Expand
Full phase analysis of portland clinker by penetrating synchrotron powder diffraction.
- A. G. De la Torre, A. Cabeza, A. Calvente, S. Bruque, M. A. Aranda
- Chemistry, Medicine
- Analytical chemistry
- 15 January 2001
Fabrication of portland cements commonly depends on X-ray fluorescence (XRF), which measures the elemental compositions. XRF is used to adjust the raw material proportions and to control the process… Expand
Specific leaf areas of the tank bromeliad Guzmania monostachia perform distinct functions in response to water shortage.
- L. Freschi, Cassia Ayumi Takahashi, +8 authors H. Mercier
- Biology, Medicine
- Journal of plant physiology
- 1 May 2010
Leaves comprise most of the vegetative body of tank bromeliads and are usually subjected to strong longitudinal gradients. For instance, while the leaf base is in contact with the water accumulated… Expand
Molecular Phylogeny, Evolution, and Biogeography of South American Epiphytic Cacti
- A. Calvente, D. Zappi, F. Forest, L. Lohmann
- Biology
- International Journal of Plant Sciences
- 15 August 2011
Epiphytes represent an important element of the tropical flora and are widely distributed across vascular plants. Despite this diversity, however, little is yet known of the evolutionary history,… Expand
Extension of the Cryptanthus range in Northeastern Brazil with new findings in the phenotypic variation including changes in the trichome’s distribution, thus enhancing the understanding of the…
- L. Versieux, R. Magalhães, A. Calvente
- Biology
- 10 June 2013
In this paper we describe the first occurrences of the genus Cryptanthus in the state of Rio Grande do Norte (RN), establishing a new northern distribution limit for the genus. Additionally, we… Expand
Stem anatomy of Rhipsalis (Cactaceae) and its relevance for taxonomy
- A. Calvente, R. H. P. Andreata, R. C. Vieira
- Plant Systematics and Evolution
- 2008
Several species of the genus Rhipsalis (Cactaceae) are extremely important as ornamentals and are endangered in their natural habitat. However, only a few studies have addressed its taxonomy,… Expand
Aechmea muricata (Arruda) L.B. Sm. (Bromeliaceae: Bromelioideae): A new record of a threatened species for Rio Grande do Norte, northeastern Brazil
- R. Magalhães, L. Versieux, A. Calvente
- Geography
- 1 May 2014
This paper records the first occurrence of Aechmea muricata (Bromeliaceae, Bromelioideae) in the state of Rio Grande do Norte, northeastern Brazil. The taxon was found inside the Mata Estrela Private… Expand
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