On underside/shady side of dead limb of living native mesquite (Prosopis velutina) in mesquite bosque at 3200' elevation. Tremella sp on same limb (see obs 159008). White hairy upper surface; smooth fertile surface (some shallow indentations-- are these pores?). No precip for over a month. A corticioid fungus--possibly in the Corticiaceae family. Any ideas would be appreciated.