Private Herbarium of Jason Hollinger
(hb. Hollinger)
Taxon: Rhizocarpon superficiale (Schaer.) Vain.
Family: Rhizocarpaceae
Determiner: Jason Hollinger (2014-10-10)
ID Remarks: ID certainty: positive
Collector: Jason Hollinger   8132   
Date: 2014-10-10
Locality: United States, Nevada, Pershing County, Humboldt Range, Black Canyon, last switchback on faint mining track at head of canyon
40.5463  -118.1956 +-5m.
Elevation: 2375 meters (7790ft)
Habitat: large rhyolite boulder high on steep south-facing slope with dense _Artemisia_ and scattered juniper
Substrate: vertical side of rhyolite boulder
Associated Species: Pleopsidium flavum
Notes: marginal areoles subplacodioid, areoles bright to slightly pale yellow bumpy convex dull leaving lots of black hypothallus visible, medull K+y-o C- KC- I- P+o strong, apothecia ~round discose black between areoles, epihymenium ~aeruginose-black K-, hymenium aeruginose in upper half or more, hypothecium red-brown, exciple dark brown K+ bleeding yellow turning slowly orangish but never any crystals, spores 8 per ascus 1-septate dark gray-brown ~smooth ~13x8um
Specimen Images
Record ID: 937521ab-604e-4fe2-b072-46619ed1c1ed
For additional information on this specimen, please contact: Jason Hollinger (
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