Private Herbarium of Jason Hollinger (hb. Hollinger)
Arthonia molendoi (Frauenf.) R. Sant.
Arthoniaceae
Jason Hollinger (2014-10-10)
ID certainty: positive
Jason Hollinger
8154
2014-10-10
United States, Nevada, Pershing County, Humboldt Range, Black Canyon, first major limestone outcrop east up ridge from top of faint mining track at head of canyon
40.5482 -118.1887 +-5m.
2565 meters (8413ft)
small limestone outcrop on broad east-west ridge
_Xanthomendoza trachyphylla_ and _Calogaya saxicola_ on shaded vertical limestone face
apothecia to ~350um wide convex black dull emarginate, epihymenium dark gray, hymenium hyaline to brownish, hypothecium brown with pigment clumped, spores 8 per ascus hyaline 1-septate constricted when mature one cell larger ~12x5um