Private Herbarium of Jason Hollinger (hb. Hollinger)
Lecidea plana (J. Lahm) Nyl.
Lecideaceae
Jason Hollinger (2016-09-12)
ID certainty: positive
Jason Hollinger
14993
2016-09-12
United States, California, Inyo County, Mount Whitney, summit
36.5785 -118.293 +-25m.
4400 meters (14432ft)
bare granite alpine peak
granite pebble
Lecanora stenotropa
thallus lacking; medulla I-; apothecia clustered in ~lines along microcracks; epihymenium ~black; hymenium ~45um, clear, hyaline; hypothecium hyaline, coarse POL+ crystals present partly clearing in K; exciple dark brown thin edge fading into almost hyaline interior, K~ very weak purplish inside; spores 8 per ascus, ellipsoid to narrowly ellipsoid, ~8-10x3.5-4.5um; TLC 4-O-demethylplanaic (JPH plate 48.12 solvents B' and C on 20180501)