This grant provides two years of continuing support to fungal taxonomists Keith Seifert and Rob Samson for their taxonomy studies of fungi isolated from indoor dust samples from homes on six continents. Over the next two years, Seifert and Samson will complete taxonomic studies of up to 200 new species of fungi isolated from house dust, isolate xerophilic fungi from newly collected samples, and consolidate their data into an openly accessible online database.  The team will share their findings and reference materials through peer-reviewed publications, including a special issue of the leading mycology journal Studies in Mycology, presentations at scholarly meetings, and through the open access database.  At least two postdoctoral fellows, one graduate student, and four undergraduate students will be trained under the grant.