|Continent||Central and Latin America|
|Date||13 Jul 2018|
A total of 100 neotropical species of Varronia is estimated, Brazil being one of the main centers of diversity along with Colombia and Mexico. However, in view of the recent constituency of Varronia at a generic level and the need for nomenclature updates, it is believed that the actual diversity of the genus is underestimated, being essential the recognition of new combinations and typifications, so that the species may be properly treated in floristic projects. The endemism of Varronia in the neotropics and in biodiversity hotspots, especially in Brazil, in counterpoint to the economic utility of several of its species combined with the gap in assessing the conservation status of almost 90% of them, strengthens the urgency needed of a robust classification and comprehensive review.
From this study will be built, will be built a broad molecular phylogenetic analysis of the species of Varronia with the evaluation of diagnostic characters, taxonomic revision and anatomical study of the genus for Brazil.
Field activities, including collections 'in loco' and visits to national and foreign Herbaria will occur during the period from March to February 2018/2020, totalizing 24 months, in order to include the greatest number of plant specimens and collections. The methods for the development of the present study are commonly used in taxonomical, anatomical and phylogenetic research with other botanical groups.
The present study will elucidate the taxonomic and nomenclatural problems in the genre, contributing effectively with consistent data for the correct delineation of taxa, broadening the knowledge of neotropical flora. In addition, given the scarcity of knowledge of reproductive biology and ecological processes involving Varronia (probably due to the nomenclatural inconsistency in the group), systematic elucidation will contribute to the effective treatment of its species in ecological studies. The use of information obtained from the recognition of the Varronia species and its historical and biogeographical relationships in a broad context will increase the understanding of plant diversity and the distribution of organisms, as well as, highlight the need of attention for the conservation of the environments where they occur.
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