| canada | | letharia sp. sa-2008b | species | 1 | 0 |
| canada | alberta | letharia sp. sa-2008b | species | 75 | 0 |
| canada | british columbia | letharia aff. columbiana | species | 21 | 0 |
| canada | british columbia | letharia columbiana | species | 3 | 0 |
| canada | british columbia | letharia gracilis | species | 2 | 0 |
| canada | british columbia | letharia sp. sa-2008b | species | 310 | 0 |
| canada | british columbia | letharia vulpina | species | 39 | 0 |
| canada | saskatchewan | letharia sp. sa-2008b | species | 6 | 0 |
| italy | south tyrol autonomous region | letharia vulpina | species | 92 | 0 |
| mexico | veracruz-llave | letharia vulpina | species | 1 | 0 |
| norway | | letharia vulpina | species | 4 | 0 |
| sweden | dalarna | letharia vulpina | species | 76 | 0 |
| sweden | kalmar | letharia vulpina | species | 56 | 0 |
| switzerland | | letharia vulpina | species | 1 | 0 |
| turkey | bolu province | letharia vulpina | species | 7 | 0 |
| united states | | letharia columbiana | species | 5 | 0 |
| united states | | letharia vulpina | species | 1 | 0 |
| united states | arizona | letharia vulpina | species | 1 | 0 |
| united states | california | letharia aff. vulpina bc5a | species | 4 | 0 |
| united states | california | letharia aff. vulpina oz6a | species | 6 | 0 |
| united states | california | letharia aff. vulpina pm6b | species | 6 | 0 |
| united states | california | letharia aff. vulpina pu12a | species | 6 | 0 |
| united states | california | letharia aff. vulpina pu14 | species | 6 | 0 |
| united states | california | letharia columbiana | species | 71 | 0 |
| united states | california | letharia gracilis | species | 74 | 0 |
| united states | california | letharia sp. sa-2008b | species | 533 | 0 |
| united states | california | letharia vulpina | species | 142 | 0 |
| united states | idaho | letharia sp. sa-2008b | species | 183 | 0 |
| united states | idaho | letharia vulpina | species | 11 | 0 |
| united states | montana | letharia sp. sa-2008b | species | 59 | 0 |
| united states | nevada | letharia columbiana | species | 9 | 0 |
| united states | nevada | letharia sp. sa-2008b | species | 24 | 0 |
| united states | oregon | letharia aff. columbiana | species | 17 | 0 |
| united states | oregon | letharia columbiana | species | 30 | 0 |
| united states | oregon | letharia gracilis | species | 1 | 0 |
| united states | oregon | letharia sp. sa-2008b | species | 224 | 0 |
| united states | oregon | letharia vulpina | species | 24 | 0 |
| united states | south dakota | letharia sp. sa-2008b | species | 8 | 0 |
| united states | utah | letharia sp. sa-2008b | species | 7 | 0 |
| united states | washington | letharia aff. columbiana | species | 23 | 0 |
| united states | washington | letharia aff. lupina wa8a | species | 5 | 0 |
| united states | washington | letharia columbiana | species | 13648 | 0 |
| united states | washington | letharia sp. sa-2008b | species | 11258 | 0 |
| united states | washington | letharia vulpina | species | 9 | 0 |
| united states | wyoming | letharia columbiana | species | 6 | 0 |
| united states | wyoming | letharia sp. sa-2008b | species | 122 | 0 |