Increases in leaf mass per area (LMA) are commonly observed response to environmental stresses and achieved through increases thickness and/or density. Here, we investigated how the two underlying components of LMA differ relation species native climates phylogeny, across deciduous evergreen species. Using a phylogenetic approach, quantified anatomical, compositional climatic variables from 40 ...

Based on sequence data of nuclear ITS and plastid matK, trnL-F and psbA-trnH markers, the phylogeny of the subtribes Caraganinae and Chesneyinae in tribe Caraganeae was inferred. The results support the monophyly of each of the subtribes. Within subtribes Caraganinae, Calophaca and Halimodendron are herein transferred into Caragana to ensure its generic monophyly. The subtribe Chesneyinae is co...

A comprehensive GC-MS analysis of 8 Ipomoea species belonging to the subgenus Quamoclit, section Mina revealed that the members of this taxon form combinations of two necine bases with rare necic acids resulting in unique pyrrolizidine alkaloids. The occurrence and diversity of these metabolites show remarkable variations: Some species, especially Ipomoea hederifolia and Ipomoea lobata, are abl...

Abstract Diatoms constitute a representative portion of the algal community freshwater aquatic environments, but their studies are centered mostly in south and southern regions Brazil, making microalgae biodiversity water bodies semiarid practically unknown. In state Ceará, few records Bacillariaceae region generally not identified at specific level. Denticula, Hantzschia, Tryblionella worldwid...

Abstract Moema, a genus of the Rivulidae family, currently comprises 20 valid species. Most these species inhabit temporary pools in Amazon basin and only one is found upper Paraguay basin. A new member this from Río Madeira drainage here described. Males differ all congeners by combination color pattern consisting oblique, sometimes chevron-like, irregular rows red light blue double-dots on bo...

The tribe Chloantheae (Prostantheroideae, Lamiaceae) currently consists of over 100 species in nine genera, all of which are endemic to Australia. Generic delimitations were assessed using chloroplast 30ndhF and nuclear ITS nucleotide sequence data for up to seventy species. Analyses of the two datasets, independently and in combination, used maximum parsimony and Bayesian phylogenetic inferenc...