Brazilian Flora 2020: leveraging the power of a collaborative scientific network

Abstract

The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiver-sity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxo-nomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis arewidely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwidehave devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparationof a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to moreof the world’s known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plantsoccurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on thealgal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project thatused cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals.This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plantsfound in one of the world’s most biodiverse countries. We further identify collection gaps and summarize future goals that extend be-yond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic tothe country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plantgroups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still un-equally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the coun-try. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades,the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, andplants from Brazil. This project also made all the information freely available online, providing a firm foundation for future researchand for the management, conservation, and sustainable use of the Brazilian funga and flora.