scholarly journals Melocactus (Cactaceae) no estado de Sergipe (Brasil) e aspectos de sua conservação

Lilloa ◽  
2018 ◽  
Vol 55 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Eronides S. Bravo Filho ◽  
Marlucia C. Santana ◽  
Paulo A. A. Santos ◽  
Adauto S. Ribeiro

The genus Melocactus of the family Cactaceae, subfamily Cactoideae is com - posed of 38 species distributed in Brazil, Central America, the Caribbean and in the Andes, and in Brazil the greatest world diversity of this genus (23 species) occurs. In the state of Sergipe, the Caatinga ecosystem occupies almost 50% of its territory, vegetation, where the largest number of species of the genus Melocactus occurs in Brazil. This study aimed to make a floristic survey of the genus Melocactus in the state of Sergipe and to analyze aspects of its conservation. The results were obtained through a survey in the herbarium database (ASE), SpeciesLink and field collections, where geographic coordinates and altitude were recorded. Specimens in the reproductive phase were collected for registration and identification in the herbarium (ASE). The phytogeographical domain of the species was identified in the macro - regions of the state, which made it possible to record the occurrence of five species of this genus, and a new one ( Melocactus sergipensis ), which is critically endangered.

Author(s):  
Daniel Alexis Tovar-Montalvo ◽  
Monserrat Medina-Acevedo ◽  
Miguel Angel García-Bielma ◽  
Jesús Jaime Guerra-Santos

Resumen: Antecedentes y Objetivos: La avena de mar, Uniola paniculata, se distribuye en el Caribe, los Estados Unidos de América y México. El objetivo de este trabajo es reportar su presencia y registro en el estado de Campeche, México. Métodos: Se colectaron ejemplares de la familia Poaceae creciendo en una duna frontal al suroeste del estado de Campeche, específicamente en la Isla del Carmen. Las colectas fueron procesadas y herborizadas, para su conservación e identificación.Resultado clave: Con la identificación de ejemplares, y después de hacer una revisión de su distribución, se registra por primera vez la presencia de Uniola paniculata (Poaceae) en la Península de Yucatán, representando una contribución al conocimiento florístico de la región y a la flora de México.Conclusiones: Esta especie solo había sido reportada para la costa del Golfo de México, en los estados de Tamaulipas, Veracruz y Tabasco. Este registro adquiere relevancia por el papel ecológico de este pasto en las dunas costeras.Palabras clave: avena de mar, conocimiento florístico, dunas costeras, flora de Campeche.Abstract: Background and Aims: The oat sea grass, Uniola paniculata, is distributed in the Caribbean, the United States of America and Mexico. The aim of this work is to report its occurrence and record in the state of Campeche, Mexico.Methods: Individuals of the family Poaceae were collected growing in a coastal dune in the southwest of the state of Campeche, particularly on the Isla del Carmen. The collections were processed and herborized for their conservation and classification.Key results: With the individuals’ identification and after reviewing its distribution, this is the first report of the presence of Uniola paniculata (Poaceae) on the Yucatan Peninsula, representing a contribution to the floristic knowledge of the region and the flora of Mexico.Conclusions: This species had only been reported from the coast of the Gulf of Mexico in the states of Tamaulipas, Veracruz and Tabasco. This record is relevant because of the ecological role of this oat sea grass in the coastal dunes.Key words: Campeche flora, coast dunes, floristic knowledge, sea oat.


Check List ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 629-640
Author(s):  
Paulo Baltazar Diniz ◽  
Hatus de Oliveira Siqueira ◽  
Tâmer de Oliveira Faleiros ◽  
Nycolas Levy Pereira ◽  
José Augusto Senhorini ◽  
...  

Rio Santa Bárbara, a small tributary of the Rio Sapucaí-Mirim, has undergone severe human intervention over the past 80 years. We surveyed the ichthyofauna of this river, some surrounding lakes, and the Rio Potreiro, a tributary. Four campaigns were carried out, 2 in the dry season and 2 in the rainy season. We found 920 specimens at 12 sites and included 32 species belonging to 6 orders and 16 families. The order Characiformes was found to be best represented in our study, followed by the orders Cichliformes and Siluriformes. The family Characidae was the most numerous, followed by the families Cichlidae and Poeciliidae. A specimen of Brycon nattereri was collected from the Rio Santa Bárbara; this species is Critically Endangered in the state of São Paulo.


Author(s):  
Lucas Cardoso Marinho ◽  
Cecília Oliveira De Azevedo

The present study deals with a floristic survey of the Orchidaceae occurring in the Poço Escuro reserve, municipality of Vitória da Conquista, Bahia, Brazil, which was conducted through a literature review, monthly field trips to the area studied and analysis of the materials of the main herbaria in Bahia. This work presents an identification key, descriptions, illustrations, comments on the morphology, habit, phenology and geographical distribution of the 12 species of Orchidaceae occurring in the Reserve, thus contributing to the knowledge of the family in the state of Bahia.


Zootaxa ◽  
2012 ◽  
Vol 3513 (1) ◽  
pp. 1 ◽  
Author(s):  
JOHN E. CADLE ◽  
JAY M. SAVAGE

We review the systematics of the Dendrophidion nuchale complex in Central America and northern South America andrecognize three species. The names D. nuchale (W. Peters) and D. clarkii Dunn apply to two of the species. The third isdescribed as a new species, D. rufiterminorum. It differs from D. clarkii and D. nuchale in coloration and hemipenial char-acters but all three species of the nuchale complex are very similar in scutellation characters. Dendrophidion nuchale isdistributed in the coast ranges and adjacent foothills of northern Venezuela, and in a seemingly disjunct population in theSerranía de Perijá in western Venezuela. The name clarkii was recently applied to all populations of the nuchale complexfrom Belize and Guatemala in the north to western Colombia and Ecuador in the south. Herein, we restrict the name D.clarkii to populations in lower Middle America (Costa Rica and Panama) and west of the Andes in Colombia and Ecuador.Dendrophidion rufiterminorum is distributed in northern Central America (Belize, Guatemala, northern Honduras) fol-lowed by a broad disjunction without records of the species throughout most of Honduras and Nicaragua; thereafter, a fewspecimens and photographs document the presence of D. rufiterminorum on the Caribbean versant of southern Nicaraguaand Costa Rica, and uplands of northwestern Costa Rica (Pacific versant). Two localities of sympatry between D. rufiter-minorum and D. clarkii are known in Costa Rica (one on the Atlantic versant, the other on Pacific versant). Nonetheless,there is sparse documentation of either species in Costa Rica. The populations referred to D. clarkii in southwestern CostaRica, the eastern half of Panama, and western Colombia and Ecuador need further study. Hemipenes of species of thenuchale complex are described. All three species have a pair of enormously enlarged sulcate spines and a regular lineararray of enlarged spines (spinose annulus) encircling the base of the apical region. These characters are also shared with D. dendrophis sensu lato but not other members of the dendrophis species group.


Linguistics ◽  
2013 ◽  
Author(s):  
Alexandra Y. Aikhenvald

The Arawak family is the largest in South America, with about forty extant languages. Arawak languages are spoken in lowland Amazonia and beyond, covering French Guiana, Suriname, Guiana, Venezuela, Colombia, Peru, Brazil, and Bolivia, and formerly in Paraguay and Argentina. Wayuunaiki (or Guajiro), spoken in the region of the Guajiro peninsula in Venezuela and Colombia, is the largest language of the family. Garifuna is the only Arawak language spoken in Belize, Honduras, Nicaragua, and Guatemala in Central America. Groups of Arawak speakers must have migrated from the Caribbean coast to the Antilles a few hundred years before the European conquest. At least several dozen Arawak languages have become extinct since the European conquest. The highest number of recorded Arawak languages is centered in the region between the Rio Negro and the Orinoco. This is potentially a strong linguistic argument in favor of the Arawak protohome having been located there. The diversity of Arawak languages south of the Amazon in central Peru around the Rivers Purús and Madeira must have been greater in the past than it is now. The settlements of Arawak-speaking peoples south of the Amazon are believed to be of considerable antiquity. The Arawak family is also known as Maipure or Maipuran (based on Maipure, formerly spoken in Venezuela). The family got its name “Arawak” from the language known as Lokono Arawak, Arawak, or Lokono Dian (spoken in French Guiana, Guiana, Suriname, and Venezuela by about 2,500 people). The genetic unity of Arawak languages was first recognized by Father Gilij as early as 1783. The recognition of the family was based on a comparison of pronominal cross-referencing prefixes in Maipure, a now-extinct language from the Orinoco Valley, and in Mojo (or Ignaciano) from Bolivia. Problems still exist concerning internal genetic relationships within the family and possible genetic relationships with other groups. North Arawak languages appear to constitute a separate subgroup; so do Campa languages and Arawak languages of the Xingu region. The legacy of Arawak languages survives in many common English words, including hammock, hurricane, barbecue, iguana, maize, papaya, savanna, guava, and possibly tobacco. This article focuses only on the major and most significant works. There are at least an equal number of more minor studies on the languages of the Arawak family.


Hoehnea ◽  
2015 ◽  
Vol 42 (1) ◽  
pp. 109-133 ◽  
Author(s):  
Edlley Pessoa ◽  
Marccus Alves

This study provides a survey of Orchidaceae species in an area of montane Atlantic Forest in the State of Pernambuco, Brazil. The study area comprises two conservation units (RPPN Frei Caneca and RPPN Pedra D’Anta), forming together the Serra do Urubu, which is located in the border of the Borborema plateau. Orchidaceae is represented in this study area by 81 species and 50 genera. Epidendrum L. (10 spp.) and Habenaria Willd. (four spp.) are the most representative genera. The subtribes Laeliinae (22 spp.) and Pleurothallidinae (14 spp.) together represent about half of the number of species. The high number of orchid species distinguishes Serra do Urubu as one of the richest areas for the family in the Atlantic Forest in northeastern Brazil. Our study also provides 18 new records of species to Pernambuco as well as reporting on about 40% of the species and 60% of the genera cited to the State. Campylocentrum pernambucense, Cattleya labiata, Cattleya granulosa, Phragmipedium sargentianum and Zygostates bradeiare cited as endangered, 14 species are endemic to the Atlantic Forest, and other seven have distributions restricted to northeastern Brazil. All these facts reinforce the importance of this area as well as management strategies for the conservation of Orchidaceae.


Zootaxa ◽  
2012 ◽  
Vol 3527 (1) ◽  
pp. 79
Author(s):  
ANDRES TAUCARE-RIOS ◽  
ANTONIO D. BRESCOVIT

The family Zoridae (F.O. Pickard-Cambridge, 1893) is currently represented by 14 genera and 79 species distributed worldwide (Platnick, 2012), of which only the genera Xenoctenus Mello-Leitão, 1938 and Odo Keyserling, 1887 are present in Americas. Xenoctenus is represented by four species, all endemic to Argentina, while Odo has, so far, a total of 27 species distributed in Central America, South America, West Indies and Australia (Platnick, 2012). The type species of Odo is O. lenis Keyserling, 1887, a specimen female described from Nicaragua. The genus Odo has never been revised and given its wide distribution and number of species, it is probably a polyphyletic genus and a complete revision is required. Also, no new material of O. lenis or O. patricius has been described since 1900.


Check List ◽  
2014 ◽  
Vol 10 (6) ◽  
pp. 1316 ◽  
Author(s):  
Fabiano Rodrigo da Maia ◽  
Renato Goldenberg

We studied an area with “Cerrado” associated to other vegetation types at the “Parque Estadual do Guartelá”, Tibagi, in the state of Paraná, Brazil. Herein, we have a list with all species of Melastomataceae recorded in the area with an illustrated guide including all of them. Despite the small area of this Conservation Unit, the park hosts a large number of species (36), in the following genera: Acisanthera, Chaetostoma, Lavoisiera, Leandra, Miconia, Tibouchina and Trembleya. The region where the park is located is considered the southern limit of the “Cerrado” biome, and also the limit of distribution of many Melastomataceae species. The distribution of the Melastomataceae species along the different vegetation types in the PEG seems to be a pattern for the family in general, registered also for other areas of “Cerrado” in Brazil.


Phytotaxa ◽  
2016 ◽  
Vol 258 (1) ◽  
pp. 1 ◽  
Author(s):  
Suzana Maria Costa ◽  
Volker Bittrich ◽  
Maria do Carmo Estanislau Do Amaral

Lentibulariaceae is the family with the second highest number of species in the Viruá National Park (VNP) according to a recent floristic survey of the aquatic and palustrine angiosperms there. The aim of the present study is to provide identification material and information on those species of Lentibulariaceae. Species descriptions were based on recent vouchers collected by the authors and previous collections deposited in various herbaria. We present keys, brief descriptions and images, comments on morphology and the geographic distribution of three species of Genlisea and 22 species of Utricularia. The eight new occurrences raise the number of known species for the family in Roraima to 39. The species composition of the Lentibulariaceae in VNP shows a close similarity with that one of the family on the Guiana Shield.


Hoehnea ◽  
2018 ◽  
Vol 45 (2) ◽  
pp. 202-224
Author(s):  
Tainã de Souza ◽  
Rafael Trevisan ◽  
Shirley Martins Silva

ABSTRACT Poaceae is a cosmopolitan family that includes species found in both forest and grassland formations. The objective of this study was to carry out the first floristic survey of Poaceae in the Parque Estadual do Guartelá (PEG), one of the last remnants of native grassland vegetation in the State of Paraná, Brazil, and provide resources to assist the identification of genera and species. The survey was conducted based on field collections and searches in the Species Link online database. In the PEG, Poaceae is represented by 29 genera and 54 species, being Paspalum L. (eight spp.), Andropogon L. (five spp.) and Eragrostis Wolf (four spp.) the richest genera. The number of species in the PEG was incremented by 29 new records. In addition, five species were classified as exotic, five as endemic to Brazil, and two were considered least concern in relation to their conservation. We also present information regarding the distribution, habitat and conservation status for each species.


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