United States, Utah, San Juan County, Bridger Jack Mesa, talus slope on S side near head of side canyon ca. 1 km WSW of small camp on bench on N side of road ca. 14 km S on Beef Basin Road from park road
37.981 -109.63 +-50m.
1950 meters (6396ft)
steep shady N-facing large blocky calcareous sandstone talus slope in head of small side-canyon
areoles unusually small and weakly cracked; cortex ~30um? but very indistinct, cells to ~4um, C- in section; hymenium ~120um, I+b-r fast; subhymenium ~30-40um, I+b persisting; parathecium yellowish, thin; paraphyses ~1.5um at base; spores many per ascus, ~3-4x2um; substrate HCl- or very briefly weakly effervescing