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Rhizocarpon geographicum

(L.) DC.

Yellow Map Lichen

G5Secure Found in 50 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.122931
Element CodeNLLEC3V230
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryFungus
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomFungi
PhylumAscomycota
ClassLecanoromycetes
OrderLecanorales
FamilyRhizocarpaceae
GenusRhizocarpon
Other Common Names
world map lichen (EN) World Map Lichen (EN)
Concept Reference
Esslinger, T.L. and R.S. Egan. 1995. A sixth checklist of the lichen-forming, lichenicolous, and allied fungi of the continental United States and Canada. The Bryologist 98(4): 467-549.
Conservation Status
Rank MethodPre-2010 methodology converted to 2011 data model
Review Date2013-06-19
Change Date2002-05-30
Edition Date2001-11-26
Edition AuthorsK. McConnell
Rank Reasons
This lichen occurs throughout most of Canada and the western U.S., excluding the interior basin, and in the southern Appalachians and New England. This species typically grows in exposed arctic and alpine habitats on siliceous rocks.
Ecology & Habitat
Other Nations (2)
CanadaN5
ProvinceRankNative
ManitobaS5Yes
NunavutS5Yes
LabradorSNRYes
Nova ScotiaS4Yes
New BrunswickS5Yes
British ColumbiaS5Yes
QuebecSNRYes
OntarioS5Yes
Northwest TerritoriesSUYes
Island of NewfoundlandSNRYes
SaskatchewanS2Yes
Yukon TerritoryS4Yes
AlbertaS5Yes
United StatesNNR
ProvinceRankNative
ColoradoSNRYes
MontanaSNRYes
WyomingSNRYes
MinnesotaSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (50)
Alaska (3)
AreaForestAcres
RhineTongass National Forest23,010
South KruzofTongass National Forest55,193
Taku-SnettishamTongass National Forest664,928
California (6)
AreaForestAcres
Castle PeakTahoe National Forest14,974
DomeStanislaus National Forest11,085
EagleStanislaus National Forest16,116
North LakeInyo National Forest2,406
North MountainStanislaus National Forest7,856
Table Mtn.Inyo National Forest4,215
Colorado (2)
AreaForestAcres
Comanche Peak Adjacent AreaArapaho & Roosevelt NFs44,158
San MiguelSan Juan NF64,263
Idaho (1)
AreaForestAcres
NeedlesPayette National Forest131,279
Minnesota (1)
AreaForestAcres
Hegman LakesSuperior National Forest675
Montana (3)
AreaForestAcres
Big BaldyLewis and Clark National Forest43,135
Freezeout MountainBeaverhead-Deerlodge National Forest97,305
Proposed Line Creek PrnaCuster National Forest389
New Hampshire (7)
AreaForestAcres
Great Gulf Ext.White Mountain National Forest15,110
JobildunkWhite Mountain National Forest3,660
Kinsman MountainWhite Mountain National Forest8,999
PemigewassetWhite Mountain National Forest32,255
Pemigewasset ExtWhite Mountain National Forest15,840
Presidential - Dry River ExtWhite Mountain National Forest10,555
Wild RiverWhite Mountain National Forest46,878
Oregon (2)
AreaForestAcres
North PaulinaDeschutes National Forest19,670
South PaulinaDeschutes National Forest9,074
Utah (12)
AreaForestAcres
0419020Ashley National Forest355,684
418040Uinta National Forest1,702
Boulder MountainWasatch-Cache National Forest8,852
Bullion - DelanoFishlake National Forest14,917
Circleville MountainFishlake National Forest24,142
GibsonWasatch-Cache National Forest5,350
High Uintas (UT)Wasatch-Cache National Forest102,398
LakesWasatch-Cache National Forest121,967
Swan Creek MountainWasatch-Cache National Forest9,390
Temple PeakWasatch-Cache National Forest24,081
Tushar MountainFishlake National Forest39,992
White PineWasatch-Cache National Forest1,942
Washington (11)
AreaForestAcres
Big Lava BedGifford Pinchot National Forest19,043
Glacier Peak KMt Baker-Snoqualmie National Forest47,269
Glacier Peak LMt Baker-Snoqualmie National Forest14,084
Liberty BellOkanogan National Forest108,495
LightningOlympic National Forest7,179
Long SwampOkanogan National Forest66,344
Mt. Baker NorthMt Baker-Snoqualmie National Forest16,873
SawtoothOkanogan National Forest122,194
Thorp Mtn.Wenatchee National Forest22,717
TiffanyOkanogan National Forest22,045
Upper SkokomishOlympic National Forest9,311
Wyoming (2)
AreaForestAcres
Beartooth Proposed WildernessShoshone National Forest16,837
South Beartooth HighwayShoshone National Forest105,570
References (3)
  1. Brodo, I. M., S. D. Sharnoff and S. Sharnoff. 2001. Lichens of North America. Yale University Press. New Haven and London. 795 pp.
  2. Esslinger, T. L. 2018. A cumulative checklist for the lichen-forming, lichenicolous and allied fungi of the continental United States and Canada, Version 22. Opuscula Philolichenum 17:6-268. [http://sweetgum.nybg.org/philolichenum/]
  3. Esslinger, T.L. and R.S. Egan. 1995. A sixth checklist of the lichen-forming, lichenicolous, and allied fungi of the continental United States and Canada. The Bryologist 98(4): 467-549.