scholarly journals Geographic distribution patterns of Leguminosae and their relevance for the conservation of the Itacolomi State Park, Minas Gerais, Brazil

2014 ◽  
Vol 14 (1) ◽  
Author(s):  
Valquíria Ferreira Dutra ◽  
Laura Cristina Pires Lima ◽  
Flávia Cristina Pinto Garcia ◽  
Haroldo Cavalcante de Lima ◽  
Ângela Lúcia Bagnatori Sartori
Keyword(s):  
Geographic Distribution ◽  
Distribution Patterns ◽  
Minas Gerais ◽  
Herbarium Specimens ◽  
Conservation Practices ◽  
The West ◽  
Semideciduous Forest ◽  
Espinhaço Range ◽  
East Central ◽  
Central South

This study identified patterns of geographic distribution of 102 Leguminosae taxa within the Park, based on literature data and herbarium specimens. Among the taxa, 38 grow exclusively in CamposRupestres (rocky fields) and 49 in the Semideciduous Forest. Eleven patterns of geographic distribution were identified, of which the West-East-Central South America pattern was the most representative, with 27 taxa. Of the 102 sampled taxa of Leguminosae, five are endemic to the Espinhaço Range and ten are included in lists of endangered species of the flora of Brazil and Minas Gerais. Information on these taxa is crucial to provide conservation practices for conserving the vegetation formations of the PEIT.

scholarly journals New occurrences of Paepalanthus mollis Kunth var. mollis: extending the distribution of Paepalanthus subg. Xeractis Körn. (Eriocaulaceae) outside the Espinhaço Range, Minas Gerais, Brazil

Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2109
Author(s):  
Bárbara Mourão ◽  
Marcelo Trovó ◽  
Mariana E. Mansanares
Keyword(s):  
Geographic Distribution ◽  
Minas Gerais ◽  
Campos Rupestres ◽  
Espinhaço Range ◽  
New Occurrences

Paepalanthus mollis var. mollis is placed in Paepalanthus subg. Xeractis (Eriocaulaceae) and, until now, it was considered endemic to the campos rupestres of the Espinhaço Range in Minas Gerais, Brazil. We report here the new occurrences of this species from the municipalities of Carrancas and Minduri, at the southern part of the mountain complex of Bocaina and Carrancas. These specimens confirm the occurrence of this species and the subgenus outside the Espinhaço Range. These occurrences are also the southernmost sites of geographic distribution of the group.

scholarly journals Expanding Waltillia: an addition to a previously monotypic genus of Bromeliaceae from the Espinhaço range, Brazil

Phytotaxa ◽  
2021 ◽  
Vol 491 (1) ◽  
pp. 1-11
Author(s):  
TALITA M. MACHADO ◽  
MARCO OTÁVIO D. PIVARI ◽  
LEONARDO M. VERSIEUX
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Minas Gerais ◽  
Similar Species ◽  
Monotypic Genus ◽  
Espinhaço Range ◽  
Minas Gerais State ◽  
Light Green ◽  
A New Species

We describe Waltillia itambana, a new species placed in the previously monotypic genus Waltillia, presenting as main differences from Waltillia hatschbachii features such as a water-impounding rosette, shorter and broader leaves, divergent non-secund flowers and the light-green petals. The species is, as far as known, restricted to Pico do Itambé State Park, in Minas Gerais, growing above 1500 m of elevation in the rupestrian grasslands, of the Diamantina Plateau, Espinhaço Range, Minas Gerais State. We compare W. itambana with other similar species that occur in the rupestrian grasslands and provide illustrations, information on geographic distribution, a map, and ecological and conservation observations on the new species.

A new species of Solanum subg. Leptostemonum (Solanaceae) from the southern Espinhaço Range, Minas Gerais, Brazil

Phytotaxa ◽  
2016 ◽  
Vol 288 (3) ◽  
pp. 258 ◽  
Author(s):  
MARIA DE FÁTIMA AGRA ◽  
JOÃO RENATO STEHMANN
Keyword(s):  
New Species ◽  
Seed Dispersal ◽  
Geographic Distribution ◽  
Conservation Status ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
Espinhaço Range ◽  
Dispersal Mechanism ◽  
First Time ◽  
A New Species

Solanum mellobarretoi, a new species of Solanum subg. Leptostemonum (Solanaceae), is described and illustrated. It is endemic to Brazil and restricted to the southern Espinhaço Range in the State of Minas Gerais, southeastern Brazil. Solanum mellobarretoi is morphologically related to S. leptostachys Dunal, from which it differs by its irregularly lobed lanceolate to ovate-lanceolate leaves, irregularly lobed, ovate to lanceolate calyx lobes, larger flowers, and pentagonal rotate corolla with cuspidate lobes. Although known in other groups of Solanum, the explosive seed dispersal mechanism found in this species is described here for the first time for the spiny solanums. The affinities with S. leptostachys, geographic distribution, ecology and conservation status of S. mellobarretoi are discussed.

Solanum adamantium (Solanaceae), a New Narrowly Endemic Species from a Diamondiferous Region of the Espinhaço Range in Minas Gerais State, Brazil

2019 ◽  
Vol 44 (4) ◽  
pp. 923-929
Author(s):  
Yuri Gouvêa ◽  
João Stehmann
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Geographic Distribution ◽  
Endemic Species ◽  
Minas Gerais ◽  
Conservation Assessment ◽  
Espinhaço Range ◽  
Minas Gerais State ◽  
Similarities And Differences ◽  
Reproductive Characters

Abstract—Solanum adamantium is described from Serra de Grão Mogol, located in the Espinhaço range, in northern Minas Gerais State, Brazil. The new species is ecologically and morphologically similar to the prickly species S. buddleiifolium and S. thomasiifolium, from which it differs in a series of vegetative and reproductive characters. We discuss the morphological similarities and differences among these species, as well as certain aspects of the new taxon’s ecology and geographic distribution. Images of diagnostic characters, a map of geographical distribution, a preliminary conservation assessment, and full specimen citations are provided.

scholarly journals Geographic distribution patterns of species of the subtribe Lychnophorinae (Asteraceae: Vernonieae)

Rodriguésia ◽  
2021 ◽  
Vol 72 ◽  
Author(s):  
Fábio Vitalino Santos Alves ◽  
Benoit Francis Patrice Loeuille
Keyword(s):  
Species Richness ◽  
Geographic Distribution ◽  
Distribution Patterns ◽  
Present Species ◽  
Asymptotic Model ◽  
Campos Rupestres ◽  
Rock Outcrops ◽  
Chapada Diamantina ◽  
Espinhaço Range ◽  
Research Bias

Abstract With 119 species distributed in 19 genera, most species of the subtribe Lychnophorinae are endemic to the Espinhaço Range in central eastern Brazil. This region is characterized especially by the campos rupestres, a grassland mosaic associated with vegetation on rock outcrops, which display a high level of endemism. The present work aims to identify distribution patterns, collection density, species richness and research bias in collections. Ten geographic distribution patterns were identified: Chapada Diamantina, Chapada dos Veadeiros and adjacent mountains, Pico da Aliança, Extension of the Espinhaço Range, Central-South Arc of Minas Gerais, Espinhaço Range and Brasília Arc, Campos Rupestres and Restinga, Chapada Diamantina and Caatinga, Northwest-Southeast Diagonal and East Triangle. Other Angiosperm families present similar distribution, mainly in the Espinhaço Meridional, where higher collecting efforts are present. Species richness is higher in sites with higher collection intensity, however, the northeast of Goiás shows the opposite pattern. Spearman correlation analysis shows a strong correlation between collection density and species richness, with an exponential asymptotic model that is quite significant for the total variation of species richness. The cluster analysis presented five clusters correlated with five distribution patterns in Lychnophorinae.

DISTRIBUTION PATTERNS AND AREAS OF ENDEMISM OF BRAZILIAN JACQUEMONTIA (CONVOLVULACEAE) SPECIES

2014 ◽  
Vol 72 (1) ◽  
pp. 13-33 ◽  
Author(s):  
M. T. Buril ◽  
J. R. Maciel ◽  
M. Alves
Keyword(s):  
Distribution Patterns ◽  
Minas Gerais ◽  
Red List ◽  
Continuous Distributions ◽  
Espinhaço Range ◽  
Areas Of Endemism

This study aims to understand the distribution of species of Jacquemontia (Convolvulaceae) in Brazil and to determine the centre of endemism of the genus in that country. A database of around 2000 records of samples deposited in 46 herbaria was created. Twenty-one species were classified as widely distributed, of which 14 have continuous distributions and seven have disjunct ones. The remaining 26 species were classified as restricted and among these, 14 were considered endemic and 12 microendemic. The centre of endemism of the genus is in the Espinhaço Range, which traverses Bahia and Minas Gerais. The distribution patterns are discussed and a new assessment for the Red List of Jacquemontia is suggested.

scholarly journals Night-time Sferic Propagation at Frequencies Below 10 KHz

1967 ◽  
Vol 20 (1) ◽  
pp. 101 ◽  
Author(s):  
KJW Lynn ◽  
J Crouchley
Keyword(s):  
Magnetic Field ◽  
Geographic Distribution ◽  
Angle Of Incidence ◽  
European Studies ◽  
Earth’S Magnetic Field ◽  
Night Time ◽  
The West ◽  
Earth's Magnetic Field ◽  
Effective Angle

Results of a study at Brisbane of individual night-time sferics of known origin are described. A propagation attenuation minimum was observed in the 3-6 kHz range. The geographic distribution of sferic types was also examined. Apparent propagation asynunetries were observed, since sferics were detected at greater ranges to the west than to the east at 10 kHz, whilst the number of tweek-sferics arising from the east was about four times that arising from the west. Comparison with European studies suggest that these asymmetries are general. These results are then " interpreted in terms of an ionospheric reflection cgefficient which is a function of the effective angle of incidence of the wave on the ionosphere and of orientation with respect to the Earth's magnetic field within the ionosphere.

Fireworms (Amphinomidae: Annelida) from Ascension and Saint Helena Island, Central South Atlantic Ocean

2015 ◽  
Vol 8 ◽  
Author(s):  
Beatriz Yáñez-Rivera ◽  
Judith Brown
Keyword(s):  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Genetic Connectivity ◽  
The West ◽  
Hermodice Carunculata ◽  
The Family ◽  
Volcanic Islands ◽  
Central South

Ascension and Saint Helena Islands are isolated volcanic islands in the South Atlantic Ocean. Records of annelids from the family Amphinomidae, commonly known as fireworms, are rare. Fireworm species recorded in both localities includeEurythoe complanataandHermodice carunculata,which are broadly distributed throughout the Atlantic Ocean. Here we present the characterization of both species from a recent expedition to Ascension and Saint Helena. Morphologically, specimens fromH. carunculatacorrespond to the West Atlantic population, whileE. complanataspecimens were clearly identified based on chaetal type. A genetic analysis, including material from Ascension and Saint Helena Islands, will be necessary to elucidate the genetic connectivity across the Atlantic Ocean.

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