Eduardo Oliveira Silva

• Professor
• Professor (Associate) at Federal University of Maranhão

We present here the first records of Vanilla bahiana and Vanilla pompona from Maranhão state, northeastern Brazil. Both species were collected in a gallery forest, in areas of Cerrado vegetation at Caxias municipality. This work contributes with knowledge on the geographical distribution of the species in northeastern Brazil.

This study reports the first record of Passiflora pedata L. (Passifloraceae) from the state of Maranhão and from the Northeast Region of Brazil. The species was collected in the municipality of Buriticupu, which is located in a remnant of Amazon Forest in western Maranhão. This work adds to the knowledge of the flora of Maranhão and the distributio...

Resumo Esta pesquisa tem por objetivo levantar e descrever as espécies de Passifloraceae que ocorrem na Área de Proteção Ambiental de Belém (APA-Belém). A família Passifloraceae está representada, na área de estudo, por dois gêneros: Dilkea (D. johannesii) e Passiflora (P. acuminata, P. auriculata, P. araujoi, P. ceratocarpa, P. foetida, P. nitida,...

Neste trabalho foi realizado o levantamento e a identificação taxonômica das espécies de hepáticas (Marchantiophyta) e musgos (Bryophyta) da área de Área de Proteção Ambiental do Buriti do Meio, município de Caxias-MA. Foram identificadas 16 espécies (14 de musgos e 2 de hepáticas), distribuídas em 12 gêneros (10 de musgos e 2 de hepáticas), e 11 f...

RESUMO Neste artigo, é apresentado um relato de experiência vivenciado durante o Programa Institucional de Bolsa de Iniciação à Docência-PIBID, realizado na Unidade Integrada Municipal Evangélica Estevam Ângelo de Souza, município de Codó-MA. Através do desenvolvimento de várias atividades, foram trabalhados diversos conteúdos (uso de materiais alt...

The São Luís Island, Maranhão State, is an ecotonal region, a mix of humid forest, cocais forest, dune vegetation, restingas and mangroves. Unlike the interior of the State, their coastal areas have a gap in knowledge of the Passifloraceae. Here, through field expeditions and herbaria visit, we provide a taxonomic treatment, identification key and...

A Ilha de São Luís, Estado do Maranhão, configura-se como uma região ecotonal, um misto de floresta úmida, mata-de-cocais, vegetação de dunas, restingas e manguezais. Diferentemente do interior do Estado do Maranhão, suas zonas costeiras possuem uma lacuna sobre o conhecimento da família Passifloraceae. Aqui, por meio de expedições de campo e consu...

Several species of Passiflora in the subgenus Decaloba bear yellow, circular glands that are between the major veins on the abaxial leaf surface, called ocelli, and commonly described as extrafloral nectaries (EFNs). Although poorly known anatomically, other studies have shown that for some Passiflora species these glands are ecologically important...

The pursuit of better adaptation in clonal plants seedling production processes based on the minicutting technique has expanded the use of species and hybrid combinations of genera Corymbia and Eucalyptus in the composition of commercial crops. The aim of the work was to evaluate the effect of spectral quality on the rooting of Eucalyptus andrewsii...

The pursuit of better adaptation in clonal plants seedling production processes based on the minicutting technique has expanded the use of species and hybrid combinations of genera Corymbia and Eucalyptus in the composition of commercial crops. The aim of the work was to evaluate the effect of spectral quality on the rooting of Eucalyptus andrewsii...

This study provides an inventory of the Orchidaceae in one of the most threatened areas of the Brazilian Amazon, situated in the eastern portion of the Belém Endemism Center. A total of 51 species, distributed in 24 genera, are recorded. Epiphytes represent 86% of the species, the remaining are terricolous (6%), hemiepiphytic (6%) or myco-heterotro...

We report the first record of Hippeastrum puniceum (Lam.) Kuntze in Maranhão and expand the known geographical distributions of Alophia drummondii (Graham) R. Foster and Rapatea paludosa Aubl. in that state. Alophia drummondii and Hippeastrum puniceum were collected in Cerrado fragments in the municipality of Caxias and Rapatea paludosa in a swamp-...

O Maranhão é um estado brasileiro caracterizado pelo aspecto ecotonal entre os domínios da Amazônia e do Cerrado. O objetivo dessa pesquisa foi relatar a primeira ocorrência de Tillandsia paraensis no domínio do Cerrado Maranhense e ampliar sua distribuição geográfica no Maranhão. O trabalho foi baseado a partir de coletas de campo. A identificação...

Abtract The foliar glands of Passiflora are generally known as extrafloral nectaries, which, unlike floral nectaries, are not related to pollination. The present study describes and analyzes the foliar glands found in Passiflora ceratocarpa and Passiflora quadrangularis, in order to confirm their identity as extrafloral nectaries and discuss the ta...

Micropropagation technique has been recommended for plant tissue rejuvenation/reinvigoration and the improvement of clonal plants production commercially. Concerning the limiting factors on in vitro cultivation of Eucalyptus grandis × E. urophylla hybrid clone, the effects of light intensity on in vitro introduction and multiplication phases were a...

A new species of Passiflora subgen. Astrophea sect. Capreolata, Passiflora bacabensis, has been collected in a typical cerrado environment (savanna) in the Parque Municipal do Bacaba (Bacaba Municipal Park), Mato Grosso state, Brazil. This species show similarities to P. cerradensis, especially when dried in the herbarium. Here, we present a descri...

We report three species of Bromeliaceae (Encholirium spectabile Mart. ex Schult. & Schult.f., Pitcairnia burchellii Mez, and Tillandsia bulbosa Hook.) for the first time from Maranhão, northeastern Brazil, based on our fieldwork. Data on species' morphology, taxonomy, ecology, and geographic distribution are included. Our new data add to the knowle...

Spectral quality is an important factor for in vitro development of explants in a bioreactor system. Based on the need to optimize micropropagation for E. grandis × E. urophylla clones, the aim of the study was to assess the spectral quality of in vitro multiplication in temporary immersion bioreactor (TIB). The tissue used to generate the explants...

We present here the rediscovery of Passiflora auriculata Kunth and P. cisnana Harms in Maranhão state, northeastern Brazil, and new reports of occurrence of those species in Alagoas state, northeastern Brazil, and Tocantins state, northern Brazil. We provide taxonomic information, distribution maps, and conservation status of both species, thereby...

As plantas são fundamentais para a manutenção da vida, pois nos fornecem oxigênio, alimentos e contribuem para a produção de fármacos. Algumas plantas são consideradas tóxicas e podem causar envenenamentos em seres humanos e animais. Essas plantas possuem substâncias químicas que podem causar intoxicações quando ingeridas ou em contato com partes d...

As coleções científicas servem como material didático no ensino de Ciências Naturais e são de grande importância no espaço acadêmico. Entre tais coleções, estão os acervos botânicos, que além de serem fiéis depositários de amostras vegetais provenientes de pesquisas científicas, podem subsidiar o processo de ensino-aprendizagem nos diferentes nívei...

Dipteryx odorata (Aubl.) Willd. and Taralea oppositifolia Aubl., Fabaceae: Dipterygeae, are two Amazonian species of great economic and pharmacological potential. The anatomy of these species, however, remains poorly studied. The aim of this work was to inventory leaf anatomical characteristics of D. odorata and T. oppositifolia and to locate and i...

RESUMO Nosso objetivo foi coletar informações sobre plantas tóxicas nas escolas públicas e acessar informações sobre o conhecimento dos alunos sobre o tema. Realizamos esse trabalho em 21 escolas municipais de ensino público em Codó-MA. Em 12 das escolas, encontramos plantas tóxicas. Foram identificadas cinco famílias botânicas e 13 espécies de pla...

We report the first records of Tillandsia kegeliana, T. loliacea, T. paraensis, T. parvispica, T. recurvata , and T. tenuifolia for Maranhão, Brazil. These species were collected in the Amazonian and Cerrado biomes. This work adds new knowledge to the flora of Maranhão and extends the distribution of these species within Brazil.

We report the first record of Voyria caerulea from the state of Maranhão, northeastern Brazil. A fertile specimen was collected in a gallery forest during the rainy season, within the boundaries of the municipality of São Raimundo das Mangabeiras. This find contributes to the knowledge on the micoheterotrophic flora of Maranhão and expands the geog...

We report the first record of Voyria caerulea from the state of Maranhão, northeastern Brazil. A fertile specimen was collected in a gallery forest during the rainy season, within the boundaries of the municipality of São Raimundo das Mangabeiras. This find contributes to the knowledge on the micoheterotrophic flora of Maranhão and expands the geog...

Dyckia racemosa is a Bromeliaceae species known from only three collections near Serra Geral, Central Brazil. In this study, the area of occurrence of the species is reported to extend to a Cerrado area in Maranhão state, northeastern Brazil. Digital collections from Brazilian and international herbaria were consulted. The species original descript...

We present here new records of Passiflora (Passifloraceae sensu stricto) species from Maranhão state, Brazil: P. cincinnata Mast., P. picturata Ker Gawl., and P. vespertilio L. This is the first report of occurrence of P. vespertilio to northeastern Brazil. Our data reinforces the need for more collections in Maranhão, as the great environmental ri...

We present here the first records of Vanilla bahiana and Vanilla pompona from Maranhão state, northeastern Brazil. Both species were collected in a gallery forest, in areas of Cerrado vegetation at Caxias municipality. This work contributes with knowledge on the geographical distribution of the species in northeastern Brazil.

TRADITIONAL KNOWLEDGE AND USE OF TIMBER SPECIES AND MEDICINAL USED IN THE MUNICIPALITY ALDEIAS ALTAS, MARANHÃO, BRASIL. ABSTRACT: This paper aimed to inventory the plants ethnobotanical survey of medicinal plants, timber used in the municipality of Aldeias Altas-MA. The data were obtained through semi-structured interviews, beyond conversations wit...

Petiolar, marginal, and laminar leaf glands are commonly described in Passiflora as extrafloral nectaries (EFNs). However, secretory structures at this same position in some representatives of the genus have been misidenti- fied as EFNs, since they release exudates other than nectar. In view of the inconsistencies in the classification of EFNs in P...

RESUMO Este estudo consistiu em um levantamento etnobotânico das plantas madeireiras, medicinais e frutíferas utilizadas no município de Coelho Neto-MA. Os dados foram coletados por meio de conversas informais e entrevistas semiestruturadas aos proprietários de serrarias e feirantes. Os resultados mostraram a ocorrência de 34 espécies de uso popula...

The present study was aimed to determine the dispersal syndromes of plant species found in the area for environmental protection of Inhamum. Data collection were performed using the quadrant method in three areas of the Cerrado, with allocation of 42 points in each area with a 10 meter spacing. The sample was composed of 476 individuals represented...

The present study was aimed to determine the dispersal syndromes of plant species found in the area for environmental protection of Inhamum. Data collection were performed using the quadrant method in three areas of the Cerrado, with allocation of 42 points in each area with a 10 meter spacing. The sample was composed of 476 individuals represented...

RESUMO A água é o mais importante recurso natural do planeta, indispensável a todos os seres vivos, e a garantia de sua qualidade, é de grande importância para o bem estar da sociedade. O Balneário Veneza, localizado no município de Caxias-MA, é uma área de potencial turístico frequentada por banhistas e ocupada por famílias. O trabalho teve como o...

Passiflora