Puccinia caxiuanensis, collected in National Forest of Caxiuanã, State of Pará, Brazil, is described as a new species of Uredinales (rust fungi) on Crepidospermum goudotianum (Tul) Triana & Planch. and Tetragastris panamensis (Engl.) Kuntze (Burseraceae).
Amazônia; Basidiomycota; Caxiuanã; rust fungi