A5072974915- Fern and Epiphyte Biology
- Plant and animal studies
- Plant Diversity and Evolution
- Growth and nutrition in plants
- Plant and Fungal Species Descriptions
- Plant Pathogens and Fungal Diseases
- Leaf Properties and Growth Measurement
- Botanical Research and Applications
- Botany, Ecology, and Taxonomy Studies
- Phytochemistry Medicinal Plant Applications
- Pineapple and bromelain studies
- Environmental and biological studies
- Lichen and fungal ecology
- Geography and Environmental Studies
- Science and Education Research
- Plant Parasitism and Resistance
- Ginger and Zingiberaceae research
- Banana Cultivation and Research
- Plant and Biological Electrophysiology Studies
- Agricultural and Food Sciences
- Biological and pharmacological studies of plants
- Plant Reproductive Biology
- Mediterranean and Iberian flora and fauna
- Ecology and Vegetation Dynamics Studies
- Anatomy and Medical Technology
Instituto de Botânica
2013-2023
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
2017
Secretaria do Meio Ambiente
1990-2014
Faculdade da Serra Gaúcha
2008
Instituto Barretos de Tecnologia
1995
Abstract: With more than 56,000 species (excluding fungi), Brazil has one of the richest floras in world—nearly 19% world flora. Our knowledge diversity and status nonvascular plants is still fragmentary, although localized studies on algae have revealed loss resulting from environmental pollution. Emphasis local floral surveys, rather wider taxonomic studies, obscured estimates national totals for most groups. Knowledge angiosperms, especially monocotyledons (of which 45% are endemic),...
The genus Alcantarea comprises near 30 species endemic to rocky outcrops from eastern Brazil. Most are ornamental and several threatened due habitat loss over collection. In this paper we examine the phylogenetics of its relationship with Brazilian members Vriesea, a which has been treated as subgenus. We discuss morphological evolution stamen position implication for pollination occurrence in Espinhaço mountain range savanna-like vegetation. DNA sequence data derived two plastid markers...
A checklist of the 14 genera and 34 species Bromeliaceae from Parque Estadual do Rio Preto in Sao Goncalo municipality, Minas Gerais state, southeastern Brazil, is presented. The Tillandsioideae was most diverse subfamily found to be concentrated rocky field areas. Bromelioideae also a rich subfamily, but its taxa have shown preference forested areas savannas at lower altitudes. Pitcairnioideae highlighted by level endemism, has only four species. Cryptanthus micrus, new this area described...
Inselbergs are terrestrial, island-like rock outcrop environments that present a highly adapted flora. The epilithic bromeliad Encholirium spectabile is dominant species on inselbergs in the Caatinga of northeastern Brazil. We conducted population genetic analysis to test whether substantial phenotypic diversity E. could be explained by limited gene flow among populations and assess relative impact pollen vs. seed dispersal structure species.Nuclear chloroplast microsatellite markers were...
In this paper we describe and illustrate Orthophytum argentum as a new species from campos rupestres of Espinhaço Range, morphologically similar to toscanoi.
"Sempre-vivas" é o nome dado no Brasil a partes de plantas, geralmente escapos e inflorescências, que conservam aparência estruturas vivas mesmo depois destacadas secas são comercializadas exportadas para decoração interiores. Folhas, frutos sementes também utilizados, mas em menor escala. As espécies "sempre-vivas" oriundas dos cerrados do Centro-Oeste Sudeste e, as maior valor comercial, campos rupestres Minas Gerais, Bahia Goiás. Entre estas, predominam Eriocaulaceae, Poaceae (Gramineae),...
O projeto Flora Fanerogâmica do Estado de São Paulo tem se dedicado a inventariar flora paulistana há quase 20 anos. Conta com atuação mais 200 colaboradores, maioria próprio estado, além pesquisadores outros estados e exterior. Desde 2001, foram publicados sete volumes as monografias 151 famílias, contendo 3.237 espécies em 722 gêneros. Este foi o ponto partida para conhecimento da diversidade das espermatófitas estado Paulo. A apresentação checklist neste momento é oportuna por constituir...
The species related to Vriesea paraibica (Bromeliaceae, Tillandsioideae) have controversial taxonomic limits. For several decades, this group has been identified in herbarium collections as V. × morreniana, an artificial hybrid that does not grow natural habitats. aim of study was assess the morphological variation V. complex through morphometric analyses populations. Two sets were performed: first involved six populations (G1) and second carried out on taxa emerged from analysis, but using...
The taxonomic treatment of Xyridaceae for the project "Flora Serra do Cipó, Minas Gerais, Brasil" is presented. family represented in that area by 58 species genus Xyris Gronov. ex L. X.sparsifolia Kral & L.B. Sm. and X. spinulosa are new records Gerais consanguinea Kunth glandacea A. Nilsson rediscovered. trichophylla Malme proposed as a synonym minarum Seub. Three described: pirapamae Wand. J. Guedes, shepherdiana Guedes atrospicata all them endemic to area. Descriptions taxa, key...
The genus Vriesea Lindl. comprises about 290 species distributed into two sections: V. sect. and Xiphion. is recognized as polyphyletic historically associated with Tillandsia L., differing from it mainly due to the presence of petal appendages. Here we focus our efforts on taxa in its main center diversity southeastern Brazil that are considered constitute a monophyletic group based molecular analyses well total evidence approach. We present morphological description Brazilian lineage,...
Alcantarea (Bromeliaceae) has 26 species that are endemic to eastern Brazil, occurring mainly on gneiss–granitic rock outcrops (‘inselbergs’). great ornamental potential and several cultivated in gardens. Limited data is available the literature regarding leaf anatomical features of genus, though it been shown may provide valuable information for characterizing Bromeliaceae taxa. In present work, we employed anatomy better characterize genus understand its radiation into harsh environments,...
O subgênero Chevaliera está representado por 21 espécies, das quais grande parte ocorre no Brasil, habitando diferentes ecossistemas. Com o objetivo de auxiliar a taxonomia são apresentados dados da anatomia foliar 11 espécies do subgênero. Entre os caracteres mais relevantes destacam-se: posição dos estômatos, câmara subestomática com células espessadas, hipoderme, número camadas parênquima aqüífero, formato canais aeração e distribuição fibras mesofilo.
Vriesea, with about 280 species distributed in two sections, Vriesea and Xiphion, is recognized as polyphyletic. We provide the cladistic analysis based on morphological data, emphasis from eastern Brazil, its main center of diversity, which emerged a monophyletic group previous molecular combined analysis. The data matrix contained information 60 Alcantarea, for total 62 terminal taxa 66 characters. produced one tree 652 steps. classic infrage- neric division sections was not corroborated....
Apresenta-se o tratamento taxonômico de Tillandsioideae (Bromeliaceae) para projeto "Flora da Serra do Cipó, Minas Gerais, Brasil". A subfamília está representada na área estudo por quatro gêneros e 24 espécies: Alcantarea (2 espécies), Racinaea (1 espécie), Tillandsia (9 espécies) Vriesea (12 espécies). São apresentadas chaves espécies, descrições ilustrações, bem como comentários sobre a taxonomia, distribuição geográfica fenologia. Propõe-se sinonimização monacorum L.B.Sm. sob V....
Bulbostylis Kunth (subfamília Cyperoideae) é um gênero neotropical, com centros de distribuição na América do Sul e África. Está representado por aproximadamente 150 espécies, das quais 44 ocorrem no Brasil, principalmente nas formações cerrado campo rupestre. São apresentados chave identificação, dados da anatomia escapo valor diagnóstico delimitação específica para 40 espécies Bulbostylis. Entre eles, destacam-se: formato em seção transversal, presença costelas sulcos, aspecto células...
The inflorescences in Bromeliaceae are indeterminate, supported by a terminal scape of variable size, and with bracts position, number, colour, shape texture. Aechmea is the most diverse genus Bromelioideae (c. 220 species) having large size shape. subgenus Chevaliera comprises 21 taxa distributed throughout Central South America, centre species richness eastern Brazil. A study inflorescence morphology 15 Brazilian presented here (A. alopecurus, A. castanea, conifera, depressa, digitata,...