Private Herbarium of Jason Hollinger (hb. Hollinger)
Acarospora stapfiana (Müll.Arg.) Hue
Acarosporaceae
Jason Hollinger (2018-08-04)
ID certainty: positive
Jason Hollinger
22030
2018-07-26
Nastassja Noell
United States, Nevada, Esmeralda County, White Mountains, Trail Canyon, ca. 1.8 km W of jct. with 2N07 on S side of canyon
37.8729 -118.2852 +-5m.
2603 meters (8538ft)
N-facing limestone outcrops of the McNett Formation on steep sagebrush steppe
_Xanthomendoza trachyphylla_ on open N-facing vertical limestone
Arthonia molendoi, Xanthomendoza trachyphylla
thallus pure white over yellow context, not to deeply cracked (strigata-like), K- C- KC- UV- KUV- P-, areoles raised on broad gomphate ecorticate white stipe; cortex ~50um, extending below rim a little; hymenium ~110um; subhymenium ~50um; spores many, subglobose, ~3-4x3um