Private Herbarium of Jason Hollinger (hb. Hollinger)
Acarospora thamnina (Tuck.) Herre
Acarosporaceae
Jason Hollinger (2019-03-21)
ID certainty: uncertain
Jason Hollinger
6665
2014-10-04
Nastassja Noell
United States, Nevada, White Pine County, Great Basin National Park, Mount Wheeler, within 10 m of western peak
38.9859 -114.3148 +-5m.
3981 meters (13058ft)
rocky summit, geology a mixture of siliceous metamorphic rocks
quartzite
Rhizoplaca novomexicana
thallus following cracks or rosulate on flat surface; areoles gomphate to subsquamulose at margin, with pale whitish to brownish lower surface, upper surface smooth very shiny medium to dark brown; cortex very thick, with thick epinecral layer, to ~100um; algal layer continuous; cortex and sometimes medulla C+r; apothecia strongly immersed and contorted, red-brown, rough with interascal plectenchyma; epihymenium red-brown; spores many per ascus, ~4x2um