fungal data and digital resources, including: Plants of the World Online Plants of the World Online is an online database launched in March 2017 as one of nine strategic outputs with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by 2020". It links taxonomic data with images from the collection, to provide a single point of access with information on identification, distribution, traits, conservation, molecular phylogenies and uses. In addition it serves as a backbone for global resources such as World Flora Online. International Plant Names Index The International Plant Names Index (IPNI) includes information from the Index Kewensis, a project which began in the 19th century to provide an "Index to the Names and Authorities of all known flowering plants and their countries". The Harvard University Herbaria and the Australian National Herbarium co-operate with Kew in the IPNI database, which was launched in its present form in 1999 to produce an authoritative source of information on botanical nomenclature including publication details of seed plants, ferns and lycophytes. It is a nomenclatural listing of all published taxonomic plant names including new species, new combinations and new names at rank of botanical family down to infraspecific. It provides data for other related projects including Tropicos and the Global Biodiversity Information Facility (GBIF). Neotropikey Information and key to flowering plants of the Neotropics (tropical South and Central America). World Checklist of Selected Plant Families The World Checklist of Selected Plant Families (WCSP) is a register of accepted scientific names and synonyms of 200 selected seed plant families. WCSP is widely used, and most authoritative web resources on plants use it as their basis. World Checklist of Vascular Plants The World Checklist of Vascular Plants (WCVP) includes all known vascular plant species (flowering plants, conifers, ferns, clubmosses, and firmosses). It is derived from the WCSP and the IPNI and therefore only includes names found in those databases. It is the taxonomic database for Plants of the World Online. Since WCSP includes only selected families, WCVP will seek to complete the process. World Checklist of Useful Plant Species A checklist of 40,292 species, including nine non-plant taxa (e.g. nostoc, forkweed, brown algae), compiled from multiple pre-existing datasets. Collaborative projects The Plant List Kew also cooperated with the Missouri Botanical Garden and other international bodies in The Plant List (TPL). Unlike the IPNI, it provides information