Private Herbarium of Jason Hollinger (hb. Hollinger)
Acarospora nevadensis H. Magn.
Acarosporaceae
Jason Hollinger (2018-12-04)
ID certainty: positive
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Jason Hollinger
17423
2017-05-10
United States, Utah, San Juan County, Bridger Jack Mesa, base of cliff at top of gully ca. 400 m S of small camp on bench on N side of road ca. 14 km S on Beef Basin Road from park road
37.9815 -109.624 +-25m.
2000 meters (6560ft)
deeply shaded base of tall N-facing calcareous sandstone cliff with _Pseudotsuga menziesii_, pinyon and juniper
noncalcareous sandstone
areoles scattered, ~round, tan, ~pruinose, convex, ~smooth to cracked around apothecia; apothecia 1 per areole in center, small leaving wide "rim", disk rough ~brown; cortex ~80um, paraplect with globose cells up to 8um, POL+ strong C+r; algae cont. and even; hymenium ~150um, I+b-r slow; subhymenium ~50-75um but indistinct due to inspersion, I+b persistent; parathecium indistinct; paraphyses ~1-1.5um below; spores many, narrowly oblong to ellipsoid, ~5-7x2.5um