Lauraceae na Reserva Biológica de Poço das Antas, Silva Jardim, Rio de Janeiro, Brasil

Quinet, Alexandre

doi:10.1590/2175-7860200657311

Cited by 9 publications

(7 citation statements)

References 4 publications

(2 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Stace (1965) indicó que es común la ocurrencia de estas estructuras en esta región y resalta su importancia taxonómica. Especies de Ocotea, Cinnamomun y Nectandra pueden presentar domacios o no, constituyendo un carácter que viene siendo usado en la distinción de las especies de la familia (Coe-Teixeira 1980;Quinet 2006).…”

Section: Discussionunclassified

Arquitectura foliar de las Lauraceae del Distrito Federal, Brasil, y nuevos patrones de venación propuestos

Gomes-Bezerra¹,

Soares-Silva²,

Gomes³

2011

Gayana Bot.

View full text Add to dashboard Cite

RESUMENFueron estudiadas las hojas de 18 especies de Lauraceae que crecen en el Distrito Federal (Brasil), con el objetivo de caracterizar sus patrones de venación e identifi car características útiles en su diferenciación taxonómica, para que junto a su morfología se puedan obtener criterios útiles que ayuden en su identifi cación vegetativa. Las hojas fueron diafanizadas, coloreadas y fotografi adas. Los patrones de venación del segundo, tercero, cuarto y quinto orden fueron descritos e ilustrados para las especies estudiadas, que presentaron una venación secundaria de tipo broquidódroma o eucamptódromo-broquidódroma, excepto en Crytocarya aschersoniana y Ocotea aciphylla con venación broquidódroma promínula reticulada. La densidad de areolas se mostró como un buen carácter taxonómico, lo que no ocurrió con el número de lados que éstas poseen. Fueron propuestos los conceptos de nudos y ramas de las vénulas y criterios para la clasifi cación de sus ramifi caciones. La mayoría de las especies poseen vénulas ramifi cadas. Los caracteres analizados, unidos con los morfológicos tales como tipo de indumento, formas de borde, y presencia y/o ausencia de domacios, posibilitaron la diferenciación de las 18 especies estudiadas, evidenciando la clara importancia de la arquitectura foliar en el reconocimiento taxonómico de especímenes en estado vegetativo. PALABRAS CLAVE:Arquitectura foliar, morfología de las hojas, venación foliar. ABSTRACTLeaves of 18 species of Lauraceae that grow in the Distrito Federal (Brazil) were studied with the goal of characterizing their venation patterns and to identify useful traits in taxonomic differentiation, so that along with their morphology can be achieved concise criteria that help in vegetative identifi cation. The leaves were cleared, stained and photographed. Venation patterns of second, third, fourth and fi fth order were described and illustrated for the studied species, which showed brochidodromous or eucamptodromous-brochidodromous secondary venation pattern, except Cryptocarya aschersoniana and Ocotea aciphylla that presented brochidodromous prominulous-reticulate venation. Areole density was found to be a good taxonomic character, which did not happen with the number of sides that they have. The concepts of the venule nodes and branches and the criteria for the classifi cation of its branches were proposed. Most species have branched venules. The analyzed characters together with the morphological ones, such as margin shape and presence or absence of domatia, allowed the differentiation of the studied species, demonstrating the clear importance of leaf architecture in the taxonomic recognition of specimens in a vegetative state.

show abstract

Section: Discussionunclassified

Arquitectura foliar de las Lauraceae del Distrito Federal, Brasil, y nuevos patrones de venación propuestos

Gomes-Bezerra¹,

Soares-Silva²,

Gomes³

2011

Gayana Bot.

View full text Add to dashboard Cite

show abstract

“…Para as análises e identificações das amostras foram consultadas literaturas especializadas (Baitello & Marcovino 2003, Quinet 2005, Brotto et al 2013, as obras contendo as descrições originais e as coleções de Lauraceae dos herbários PMSP, SPF e SPSF. Os dados de floração e frutificação foram obtidos através dos rótulos das exsicatas, observações de campo e consultas à literatura.…”

Section: Methodsunclassified

“…Uma particularidade do exemplar coletado na área de estudo é a ocorrência de domácias glabras, diferentemente do padrão piloso citado por outros autores (Baitello & Marcovino 2003, Quinet 2005.…”

Section: Figura 1 C Dunclassified

Ocotea Aubl. (Lauraceae) no Núcleo Curucutu, Parque Estadual da Serra do Mar, São Paulo, SP, Brasil

Zamengo

Affonso

2017

Hoehnea

View full text Add to dashboard Cite

RESUMO Este trabalho consiste no levantamento taxonômico e florístico de Ocotea Aubl. no Núcleo Curucutu, Parque Estadual da Serra do Mar, São Paulo, Estado de São Paulo, Brasil. Chaves de identificação, descrições morfológicas, ilustrações, distribuição geográfica e fenologia são apresentados. O gênero está representado na área por oito espécies: Ocotea curucutuensis J.B. Baitello, Ocotea dispersa (Nees & Mart) Mez, Ocotea laxa (Nees) Mez, Ocotea nutans (Nees) Mez, Ocotea pulchella (Nees & Mart) Mez, Ocotea pulchra Vattimo -Gil, Ocotea serrana Coe-Teix, Ocotea venulosa (Nees) Baitello.

show abstract

“…Common names are usually given by a parataxonomist at the collection site, and these common names are used to search for the corresponding scientific name published in the literature, often referring to several species that are sometimes from very different taxonomic groups (Ferreira & Hopkins 2004, Baraloto et al 2007, Procópio & Secco 2008. Species commonly known as laurel, with different variations (oleander, bois de sassafras, cayenne rosewood), may correspond to at least 50 species of the Lauraceae family and may belong to different genera, including Aniba, Ocotea and Mezilaurus (Quinet 2006, Ferraz et al 2009. All of those problems lead to low numbers and a low quality of collection records in herbaria, which are considered the main problems for the analysis of spatial distribution of many plant species (Gaston & García-Viñas 2010, Hassemer et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Distribution and conservation of Aniba Aubl. (Lauraceae Jussieu) species in Brazil

Franciscon

Miranda

2018

Biota Neotrop.

View full text Add to dashboard Cite

This study conducts a biogeographical review of Aniba in Brazil, including its actual and potential distribution, and a review on the species conservation status. The potential distribution of each Aniba species was modeled using the Brazilian Plants and Fungi Biogeography system, which is interconnected with the SpeciesLink network. A consensus model based on up to five algorithms was used to model the potential distribution of each species. The endemism, conservation status and rarity of each species in Brazil were also analyzed. A total of 3059 records of 30 Brazilian Aniba species were found. In total, 16.1% of the records were excluded because of the lack of valid names, and 53.4% were excluded because of the lack of georeference and name of the person who identified the record. The consensus model showed good results for species with 20 or more pixels. The other species had many errors, and their models could only be used to determine new areas for collections. Nine species were endemic to Brazil, and only three species showed no indicator of rarity. The geographical distribution of Brazilian Aniba species shows a predominantly Amazonian pattern. Only four species are not actually found in the Amazon. Some Amazonian species may also be found in Atlantic Forest areas, and many other species have the potential to live there. Our results indicate that only three species have no conservation problems, whereas 14 species have conservation problems, and 13 other species require further population studies to be best evaluated.

show abstract

Lauraceae na Reserva Biológica de Poço das Antas, Silva Jardim, Rio de Janeiro, Brasil

Cited by 9 publications

References 4 publications

Arquitectura foliar de las Lauraceae del Distrito Federal, Brasil, y nuevos patrones de venación propuestos

Arquitectura foliar de las Lauraceae del Distrito Federal, Brasil, y nuevos patrones de venación propuestos

Ocotea Aubl. (Lauraceae) no Núcleo Curucutu, Parque Estadual da Serra do Mar, São Paulo, SP, Brasil

Distribution and conservation of Aniba Aubl. (Lauraceae Jussieu) species in Brazil

Contact Info

Product

Resources

About