Cyphellostereum brasiliense is a species of basidiolichen in the family Hygrophoraceae. Found in Brazil, it was formally described as a new species in 2010 by Norwegian mycologist Leif Ryvarden. The type specimen was collected in São Paulo, where it was found growing on dead mosses. The species has a rounded to slightly spoon-shaped cap, and club-shaped basidia measuring 18âÂÂ25 by 5âÂÂ6 üm with oblong to ellipsoid basidiospores measuring 7âÂÂ8 by 3.5âÂÂ4.5 üm.