Private Herbarium of Jason Hollinger (hb. Hollinger)
Acarospora oligospora (Nyl.) Arnold
Acarosporaceae
Jason Hollinger (2017-05-10)
ID certainty: positive
Jason Hollinger
17426
2017-05-10
United States, Utah, San Juan County, Bridger Jack Mesa, ridge ca. 300 m S of small camp on bench on N side of road ca. 14 km S on Beef Basin Road from park road
37.983 -109.622 +-50m.
1925 meters (6314ft)
steep N-facing shale slope below calcareous sandstone cliff with scattered pinyon and juniper
noncalcareous sandstone
areoles thickly white pruinose, scattered, ~round, ~convex; cortex ~40um, epicortex very uneven and indistinct, POL-, subparaplect, cells to ~4um; algae cont. and even; hymenium ~125-150um, I+b-r quick; subhymenium very indistinct from inspersion, I+b persisting; parathecium indistinct or thin; paraphyses ~1.5um at base; spores ~16-32 per ascus, ellipsoid, ~10-12x5-7um