Urticaceae is a family with more than 2000 species, which contains remarkable morphological diversity. It has undergone many taxonomic reorganizations, and is currently the subject of further systematic studies. To gain more resolution in systematic studies and to better understand the general patterns of character evolution in Urticaceae, based on our previous phylogeny including 169 accession...

Plants of the Urticaceae family can develop into a pest on soils enriched with nitrogen. Urticaceae pollen is a biohazard because it elicits severe pollinosis. Pollen grains were sampled by using a Lanzoni seven-day-recording trap from February 1995-December 2000 in the atmosphere of the city of Ponferrada (Leon, North Western Spain). The Spearman test was used to analyse the statistical correl...

The March issue of Allergy featured an interesting article by Dr van Ree: The CREATE project development of certified reference materials for allergic products and validation of methods for their quantification (1). It represents, in our opinion, a great effort and a decisive step to achieve a shared standardization of allergen extracts for the diagnosis and treatment of allergic disorders. Nev...

Abstract The Urticaceae family, circumscribed within the Rosales, was investigated in this study with an overview of current literature about phytochemical studies using Liquid Chromatography coupled to Mass Spectrometry (LC-MS) technique. aim review secondary metabolites identified Urticaeae LC-MS analysis. A systematic performed Scifinder and ScienceDirect databases. Phenolic substances are m...

A significant increase in summer temperatures has been observed for the period 1996-2011 in Poznań, Poland. The phenological response of four weed taxa, widely represented by anemophilous species (Artemisia spp., Rumex spp. and Poaceae and Urticaceae species) to this recent climate warming has been analysed in Poznań by examining the variations in the course of airborne pollen seasons. Pollen d...

Four new species of Pilea (Urticaceae) from the Andes of Venezuela are described and illustrated: Pileamatthewii sp. nov., Pileamiguelii sp. nov., Pileanicholasii sp. nov., and Pileanidiae sp. nov. The affinities of these species and their positions within the informal classifications of Pilea proposed by Weddell and Killip are discussed. Notes on other species of Pilea found in Venezuela also ...

Abstract Background Pilea is a genus of perennial herbs from the family Urticaceae, and some species are used as courtyard ornamentals or for medicinal purposes. At present, there no information about plastid genome , which limits our understanding this genus. Here, we report 4 genomes taxa ( mollis glauca ‘Greizy’, peperomioides serpyllacea ‘Globosa’) performed comprehensive comparative analys...