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Registros recuperados: 40 | |
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Eggers,Lilian; Marchioretto,Rafaella; Souza-Chies,Tatiana T.; Chauveau,Olivier. |
ABSTRACT A taxonomic synopsis of Cypella (Iridaceae) in Brazil is presented with recognition of 16 species, two of them represented by two subspecies. An identification key to the taxa is provided and species are described and illustrated. New synonyms are indicated, and eight lectotypes, two epitypes and one neotype are designated. Results include distribution, habitat, phenology, conservation status, notes and examined specimens of all taxa, as well as comments on dubious and misused names. The resulting framework revealed that most of the Brazilian species of Cypella occur in the state of Rio Grande do Sul and in the Pampa Biome, although Río de la Plata grasslands (RPG) is the most species-rich biogeographic unit of the genus. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campos; Cypella; Floristics; Iridaceae; Pampa; Rio de la Plata Grasslands; Taxonomy; Tigridieae; Typification. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400741 |
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BRAZ,DENISE M.; CARVALHO-OKANO,RITA M.; KAMEYAMA,CÍNTIA. |
O trabalho apresenta o levantamento das Acanthaceae da Reserva Florestal Mata do Paraíso, no Município de Viçosa, MG, uma área predominantemente florestal do complexo vegetacional da Mata Atlântica. Foram registrados quatro gêneros e seis espécies: Geissomeria schottiana Nees, Justicia scheidweileri V.A.W. Graham, Mendoncia velloziana Mart., Ruellia brevifolia (Pohl) C. Ezcurra, R. menthoides (Nees) Hiern e R. subsessilis (Nees) Lindau, sendo que R. menthoides constituiu uma nova citação para Minas Gerais. São apresentadas chaves analíticas para gêneros e espécies, descrições, ilustrações, comentários taxonômicos e informações sobre usos e distribuição geográfica das espécies. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acanthaceae; Floristics; Minas Gerais; Southeastern Brazil; Taxonomy. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002012000013 |
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Batista, Anderson Pedro Bernardina; Aparício, Wegliane Campelo da Silva; Aparício, Perseu da Silva; Santos, Vanessa Silva dos; Lima, Robson Borges de; Mello, José Marcio de. |
O objetivo deste trabalho foi caracterizar a composição florística, estrutura e distribuição espacial das espécies arbóreas em uma floresta de terra firme no Estado do Amapá. Foram coletados dados dendrométricos e florísticos em 200 unidades amostrais terciárias, sendo analisadas as árvores com diâmetro a 1,30 m do solo (DAP) ≥ 40 cm. Foram calculados parâmetros fitossociológicos, distribuição espacial e índice de diversidade de Shannon. No levantamento foram amostrados 4.030 indivíduos arbóreos, distribuídos em 37 famílias e 201 espécies, sendo Goupia glabra (cupiúba) a espécie de maior valor de importância (VI). A área florestal apresenta características de floresta preservada. A amostragem revelou que a vegetação arbórea ocorre com maior proporção de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Engenharia Florestal Fitossociologia; Florística; Distribuição espacial Phytosociology; Floristics; Spatial distribution. |
Ano: 2015 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/689 |
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DO VALE,Igor; MIRANDA,Izildinha Souza; MITJA,Danielle; SANTOS,Alessio Moreira; SANTOS,Graciliano Galdino Alves dos; LEÃO,Fábio Miranda; OLIVEIRA,Mariana Gomes; COSTA,Luiz Gonzaga da Silva. |
ABSTRACT Shade-tolerant forest species are among the most susceptible to habitat loss in agricultural mosaics, where a variety of croplands is connected to forests at different levels of anthropogenic disturbance. We aimed to evaluate the community similarity of shade-tolerant species among different land use types across agricultural mosaics with different levels of disturbance. The study was conducted in three municipalities in southern and southeastern Pará state, in eastern Amazonia. A multiple-community similarity measure based on the Horn similarity index was used to compare land use types and assess the resilience of shade-tolerant species towards forest loss and disturbance at the landscape level. High shade-tolerant species similarity was found... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floristics; Land use; Pasture; Resilience; Similarity. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200124 |
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Batista,Wanessa Vieira Silva Menezes; Pôrto,Kátia Cavalcanti; Santos,Nivea Dias dos. |
ABSTRACT The ready availability of water resources distinguishes the humid forest of Chapada do Araripe, Ceará State, Brazil, from the semiarid vegetation around it. The regional climate demonstrates a marked seasonality of rainfall that affects the ecological strategies of the species found there. We studied the bryophytes of the humid forest of Chapada do Araripe, analyzing their diversity, geographic distributions, and ecological and reproductive aspects. Bryophytes were collected from different substrates using the random-walk method. We gathered information concerning the geographic distribution, functional groups (life forms, light tolerance guilds, and habits) and reproductive aspects of each taxon. We found 76 bryophyte species, predominantly... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mosses; Liverworts; Floristics; Enclave forest; Seasonality. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000200303 |
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Jardim,Jomar Gomes; Souza,Elnatan Bezerra de; Loiola,Maria Iracema Bezerra. |
ABSTRACT As part of an ongoing study of the taxonomy and systematics of Rubiaceae of the state of Ceará, Brazil, a new species, Faramea baturitensis, is here recognized, described, and illustrated. The new species occurs in “Serra de Baturité,” a relic of the Atlantic Forest. Detailed data on the distribution, habitat, phenology, and conservation status of the new species, as well as a key to species of Faramea in Ceará, are provided. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Endemism; Floristics; Rubioideae; Taxonomy. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400778 |
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Prado,Jefferson; Hirai,Regina Yoshie; Moran,Robbin Craig. |
Abstract This paper provides keys, illustrations, short descriptions, and voucher specimen citations for the ferns and lycophytes of Acre, Brazil. We recognize a total of 212 species in 66 genera and 28 families. Of these, the lycophytes are represented by 14 species, 4 genera, and 2 families, and the ferns by 8 varieties, 1 subspecies, 198 species, 62 genera, and 26 families. The total represents an increase of 22 species and two varieties compared to a checklist published in 2009. The six most species-rich genera are Adiantum (21 spp.), Asplenium (14), Selaginella (12), Trichomanes (11), Lindsaea, and Microgramma (9 each). None of the species treated here are endemic to Acre. A new combination is made for Meniscium chrysodioides Fée var. goyazense. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Diversity; Floristics; Pteridophytes; Taxonomy. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400304 |
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Silva Júnior,Manoel Cláudio da; Felfili,Jeanine Maria; Proença,Carolyn Elinore Barnes; Brasileiro,Ana Cristina Miranda; Melo Filho,Benício de; Silva,Paulo Ernane Nogueira da; Costa,Kátia Lemos. |
O território de Fernando de Noronha localiza-se a 32º 25'30" W de longitude e 3º 50' 10" S de latitude e é composto por 21 ilhas. Este trabalho foi realizado na ilha principal na região do Morro da Quixaba até a Ponta da Sapata, onde a vegetação foi menos perturbada nas últimas décadas. Utilizou-se o método de quadrantes para a amostragem de indivíduos com diâmetro mínimo de 5 cm a 30 cm do solo. A distância entre os pontos foi estabelecida em 10 m. No total foram aplicados 100 pontos de amostragem, em diversas picadas alocadas na área de estudo. Foram encontradas 13 famílias sendo dominantes, Nyctaginaceae, Bignoniaceae, Anacardiaceae, Rubiaceae e Euphorbiaceae. Dentre as 16 espécies encontradas, Guapira sp. ocupou a primeira posição em importância com... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytosociology; Floristics; Fernando de Noronha. |
Ano: 1987 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061987000300024 |
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TONIATO,MARIA TERESA ZUGLIANI; LEITÃO FILHO,HERMÓGENES DE FREITAS; RODRIGUES,RICARDO RIBEIRO. |
Foi realizado um levantamento fitossociológico em dois fragmentos de floresta higrófila (mata de brejo) no município de Campinas, SP. Em cada fragmento foram alocadas 10 parcelas contíguas de 10 m x 10 m e amostrados todos os indivíduos com PAP (perímetro à altura do peito) <FONT FACE="Symbol">³</FONT> 10 cm. Os dados dos dois fragmentos foram agrupados e analisados em conjunto. Ao todo foram amostrados 955 indivíduos de 55 espécies, 44 gêneros e 29 famílias. Foi observada baixa diversidade em espécies (H = 2,80 nats/indivíduo). As espécies de maior IVI, em ordem decrescente, foram Calophyllum brasiliensis (Clusiaceae), Protium almecega (Burseraceae), Styrax pohlii (Styracaceae), Syagrus romanzoffiana (Arecaceae), Talauma ovata (Magnoliaceae),... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swamp forest; Forest fragments; Floristics; Phytosociology; Campinas/SP/BR. |
Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000200012 |
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Batalha,Marco Antônio; Mantovani,Waldir. |
We studied a 1225 ha area, composed mainly of cerrado, in Santa Rita do Passa Quatro, São Paulo State, southeastern Brazil (21°36-38'S, 47°36-39'W). In three cerrado physiognomies (campo cerrado -- a wooded savanna, cerrado sensu stricto -- a woodland, and cerradão -- a tall woodland), we collected all vascular plants in reproductive stage, and identified them to species level. We found 360 species, representing 236 genera and 69 families. The richest families were: Asteraceae, Fabaceae, Poaceae, and Rubiaceae. The savanna physiognomies were richer than the forest one. The ratio between herbaceous and woody species was approximately 2:1. We analysed the whole flora and its two components separately, woody and herbaceous, comparing them with other disjunct... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Savanna; Physiognomy; Floristics; Woody/herbaceous ratio. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062001000300001 |
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Delprete, P.G.; Achille, F.; Mouly, A.. |
According to current generic delimitations, supported by wood anatomy, palynology, and recent molecular phylogenies, Antirhea, traditionally treated as a Pantropical genus, is instead restricted to the Paleotropics. At the same time, the Neotropical species traditionally positioned in Antirhea should be positioned in Stenostomum. Following these definitions, Stenostomum is a genus with most of the species present in the Caribbean Region, and two species present in the Guianas, namely S. acreanum and S. guianensis, distributed throughout the Amazon Basin. In addition, according to these new generic delimitations, two species previously positioned in Guettarda and Antirhea need to be transferred to Chomelia, as C. triflora and C. ulei. |
Tipo: Article / Letter to the editor |
Palavras-chave: Amazon Basin; Chomelia; Floristics; French Guiana; Guettarda; Guettardeae; Guyana; Rubiaceae; South America; Stenostomum; Taxonomy. |
Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/525264 |
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RODRIGUES,Rodrigo Schütz. |
ABSTRACT Rapateaceae is a monocot family centered in the Guiana Shield region of South America. This article reports four generic additions to the Rapateaceae of Rondônia, a state in northern Brazil. Cephalostemon gracilis (Poepp. & Endl.) R.H.Schomb., Duckea cyperaceoidea (Ducke) Maguire, Monotrema xyridoides Gleason, and Schoenocephalium cucullatum Maguire were recorded in lowland savannas and open white-sand ecosystems in the state. These findings extend significantly the known diversity of the Rapateaceae taxa occurring in Rondônia, and represent an extension of their geographical distribution to a Brazilian state with no part of its territory in the Guiana Shield. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Floristics; Guiana Shield; New record. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200095 |
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Nóbrega,Giseli Areias; Aidar,Marcos Pereira Marinho; Paciencia,Mateus; Prado,Jefferson. |
Abstract This work contributes to the knowledge of the fern and lycophytes diversity in the Picinguaba and Santa Virginia Nuclei, Parque Estadual da Serra do Mar (PESM), Ubatuba, São Paulo, Brazil, as well as to provide subsidies to identification of the found taxa in these areas. In total, 30 collecting expeditions were conducted and the vouchers were deposited at UEC Herbarium. We have identified 135 species distributed in 53 genera and 19 families for both areas. The most representative families were Polypodiaceae (28 species) and Dryopteridaceae (19 species), whereas Asplenium (12 species), Blechnum and Elaphoglossum (8 species each) were the most important genera. Epiphytic species predominated (62 overall), probably due to the presence of favorable... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floristics; Taxonomy; Diversity; Atlantic Rain Forest. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400801 |
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Registros recuperados: 40 | |
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