Abstract: Basaltic cliffs in southern Brazil support specialized plant communities shaped by extreme environmental conditions, high habitat heterogeneity, and spatial isolation. Despite their ecological importance, these environments remain poorly documented and are increasingly threatened by anthropogenic pressures...

Abstract: Grindelia mutabilis (Asteraceae, Astereae), a new species from Brazil endemic to the Espinal Ecoregion of the Río de La Plata Grasslands Bioregion and Pampa Province of the Chaco Biogeographical Domain, is proposed and illustrated. The new species is characterized by a combina...

Abstract: Peach tree (Prunus persica L. Batsch) is a fruit species of great economic importance worldwide. Thousands of chemical leaf analyses are performed on a yearly basis to support decision-making about fertilizer application. However, traditional methods to determine nutrient content in...

ABSTRACT: Low air temperature during the dormancy period promotes uniform flowering in peach trees, while the heat after the full bloom is necessary for fruit development. Rootstock cultivars affect the timing of scion phenological stages, either advancing or delaying their occurrence from&#...

Abstract: Calea comprises 165 species distributed from Mexico to Argentina. Within the tribe Neurolaeneae, the genus is distinguished by its striated phyllaries, generally yellow corollas, anthers and style branches, as well as its pappus elements in the form of scales. Calea subg. Meye...

Abstratc: Natural products play a vital role in the development of antiviral drugs, particularly against herpes simplex viruses (HSV-1 and HSV-2), which infect up to 90% of the global population. Current treatments are limited, and increasing resistance to acyclovir complicates disease manag...

Resumo: As antocianinas são pigmentos naturais hidrossolúveis, da classe dos flavonoides, cuja coloração varia do vermelho ao azul em diversas matrizes vegetais. Devido a estas características, despertam interesse como corantes naturais, incentivando a busca por métodos eficientes de extração. Neste&#...

Abstract Neurolaeneae (Asteraceae) have a complicated taxonomic history. The tribe was described in 1927, but subsequently disregarded in 1977, and later reinstated as a tribe following a large-scale phylogenetic analysis of Asteraceae in 2002. To date, this tribe has remained poorly studied...

Abstract: Three new state-level records for the genus Agarista are reported in Brazil. The distribution of Agarista revoluta is expanded in Northeast Brazil, with new occurrences in Alagoas and Pernambuco. Agarista eucalyptoides is newly recorded for Espírito Santo, based on previously misid...