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Molecular phylogenetics of the Brazilian giant bromeliads (Alcantarea, Bromeliaceae): implications for morphological evolution and biogeography.
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 thisExpand
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Stem anatomy of Rhipsalis (Cactaceae) and its relevance for taxonomy
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
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Molecular phylogeny of tribe Rhipsalideae (Cactaceae) and taxonomic implications for Schlumbergera and Hatiora.
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 specializedExpand
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Full phase analysis of portland clinker by penetrating synchrotron powder diffraction.
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 processExpand
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Specific leaf areas of the tank bromeliad Guzmania monostachia perform distinct functions in response to water shortage.
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 accumulatedExpand
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Molecular Phylogeny, Evolution, and Biogeography of South American Epiphytic Cacti
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
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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
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, weExpand
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Stem anatomy of Rhipsalis (Cactaceae) and its relevance for taxonomy
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
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Aechmea muricata (Arruda) L.B. Sm. (Bromeliaceae: Bromelioideae): A new record of a threatened species for Rio Grande do Norte, northeastern Brazil
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 PrivateExpand
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