Private Herbarium of Jason Hollinger (hb. Hollinger)
Acarospora fuscescens H. Magn.
Acarosporaceae
Jason Hollinger (2017-05-13)
ID certainty: positive
Jason Hollinger
17454
2017-05-13
Nastassja Noell
United States, Utah, San Juan County, Salt Creek, broad shelf above canyon ca. 5.5 km ENE of Cathedral Butte
37.9667 -109.76 +-5m.
1900 meters (6232ft)
open sandstone flat with scattered pinyon and juniper
sandstone
areoles scattered on whitish hypothallus, roundish, medium to pale brown to whitish from epicortex; cortex ~50um + ~30um epicortex, POL+, paraplect with globose cells to ~5um; hymenium ~125um, I+b-r fast; subhymenium ~50um, I+b; parathecium thin, I+b strong below subhymenium fading to I+r at top where it is scarcely expanded, but don't confuse with sterile plectenchyma which wells up in spots within hymenium and expands greatly above epihymenium; paraphyses ~2um below; spores many, ~3-5x2.5-3um