Floristic survey of the herbaceous-shrub layer of a gallery forest in Alto Paraíso de Goiás - GO, Brazil

Abstract

Flowering species of the herbaceous and shrubby layer were sampled in a gallery forest at Portal da Chapada, Alto Paraíso de Goiás-GO in the Chapada dos Veadeiros during 12 months growing within 4.5 meters on either side of a raised pathway 2.4 Km long. The collections were included to University of Brasilia Herbarium (UB). A total of 138 species (103 genera and 40 families) were recorded; the most species-rich families were Asteraceae (22), Poaceae (14), Rubiaceae (12), Fabaceae (11) and Melastomataceae (7). The richest family in number of genera was Asteraceae (19), followed by Poaceae (8), Fabaceae (8) and Rubiaceae (7). The results showed a meaningful increase in the Chapada dos Veadeiros flora, especially considering the herbaceous-shrubby layer of the gallery forests (223.6%). Despite the richness of the flora, the number of endemics species in the Goiás State was only 1.5%.

Use of topsoil for restoration of a degraded pasture área

“…agropec. bras., Brasília, v.52, n.11, p.1080-1090, nov. 2017 DOI: 10.1590/S0100-204X2017001100014 offer a great advantage: they not only ensure the species' dissemination in the area, but also add other important species whose seeds are present in their faeces (Silva et al, 2012). Therefore, the rates found in this study for the number of species (57%) and individuals (88%) with zoochoric dispersion corroborate those reported by Silva et al (2012), who observed zoochoric as the predominant dispersal syndrome among species (87.5%).…”

“…The values observed are considered low compared to those found by Silva et al (2012) in the evaluation of a gravel soil coverage after using topsoil in the dry and the rainy seasons, with 66 and 82% coverage, respectively. In the present study, however, it is noteworthy that topsoil was applied in February, when there was a strong summer in the region, which led to low regeneration and high mortality.…”

“…It is usually herbaceous, with a rapid development cycle, high aggressiveness and low competitive capacity (Chaves & Silva, 2012).…”

Epidendrum L. (Orchidaceae, Epidendroideae) no Parque Nacional da Chapada dos Veadeiros, Estado de Goiás, Brasil

“…Além desse trabalho, Pessoa (2020) tem citado 33 e 21 espécies, para o gênero na região Centro-Oeste e no Estado de Goiás no site Lista das espécies da Flora do Brasil (http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/ FB11518), respectivamente. Espécies do gênero são ainda citadas em estudos fitossociológicos e florísticos pontuais, como àqueles elaborados para o Parque Estadual dos Pireneus (Bosquetti 2008), Chapada dos Veadeiros (Mendonça et al 2007) e Alto Paraíso de Goiás (Munhoz & Proença 1998, Munhoz & Felfili 2006, Eugênio et al 2011, Chaves 2012. Ressalta-se que, em alguns estudos, assim como em coleções de herbários, espécies do gênero são equivocadamente identificadas e/ou correspondem a binônimos desatualizados, revelando a necessidade de estudos mais atuais para o gênero.…”

Germinação de diásporos e micropropagação da sempre-viva Paepalanthus chiquitensis Herzog (Eriocaulaceae)

“…Seta vermelha indica brotação lateral a partir do eixo principal. Fonte: Arquivo pessoal Diversas pesquisas têm sido desenvolvidas com espécies do gênero Paepalanthus, com abordagem mais frequente em taxonomia (GIULIETTI et al, 1996;OLIVEIRA, 2010;ANDRADE, 2012;SILVEIRA, 2012;COSTA, 2013;SILVA;TROVÓ, 2014;SANO et al, 2015), anatomia (CASTRO;MENEZES, 1995;SCATENA et al, 1998;MACHADO et al, 2000;ROSA, 2001;COAN et al 2002;SCATENA et al, 2005;GIULIETTI et al, 2012; e composição florística (GIULIETTI et al, 1987;United Nations Educational, Scientific and Cultural Organization-UNESCO, 2002;TANNUS;ASSIS, 2004;OLIVEIRA, 2005;CARMO, 2006;LEMES, 2009;MEYER;FRANCESCHINELLI, 2010;SANO et al, 2010;CHAVES;SOARES-SILVA, 2012;ECHTERNACHT et al, 2012;ANDRADE, 2013;ANDRINO, 2013;RESENDE et al, 2013). Dentre as espécies do gênero, as cinco mais estudadas são P. bromelioides Silveira, P. chiquitensis Herzog (principal sinonímia P. speciosus (Bong.)…”