Name typified by this specimen: Rhizoplaca haydenii ssp. arbuscula Rosentreter Kind of type: iso Typification reference: McCune, B. & R. Rosentreter 2007. Biotic soil crust lichens of the Columbia basin. Monographs in North American Lichenology. Northwest Lichenologists 1:1-105. Label header: LICHENS OF IDAHO Family: PARMELIACEAE Label name: Rhizoplaca haydenii ssp. arbuscula Rosentreter Verification summary: Label name: Rhizoplaca haydenii ssp. arbuscula Rosentreter
Locality and habitat information: USA: Idaho: Lemhi: Leadore: Leadore. Windswept area near calcareous siltstone rock outcrops 3 km northwest of Leadore off Highway 28. T14N R27E S20. 1,800 m. 44°41'42"N, 113°23'9.6"W. Accuracy of georeference: within 5 km Collector(s) and collection number(s): Rosentreter, Roger 3861 Collection date: 8 Jun 1986 Accession #: 137830 Barcode: CONN00069806 Location in CONN: Dry Storage