| armenia | | melanelixia epilosa | species | 7 | 0 |
| armenia | | melanelixia fuliginosa subsp. glabratula | subspecies | 2 | 0 |
| armenia | | melanelixia subargentifera | species | 2 | 0 |
| australia | | melanelixia piliferella | species | 5 | 0 |
| canada | | melanelixia albertana | species | 3 | 0 |
| canada | | melanelixia fuliginosa subsp. glabratula | subspecies | 5 | 0 |
| canada | | melanelixia glabra | species | 1 | 0 |
| canada | | melanelixia subargentifera | species | 9 | 0 |
| canada | | melanelixia subaurifera | species | 15 | 0 |
| canada | ontario | melanelixia subaurifera | species | 1 | 0 |
| china | | melanelixia albertana | species | 15 | 0 |
| denmark | | melanelixia fuliginosa subsp. glabratula | subspecies | 2 | 0 |
| estonia | | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| finland | | melanelixia fuliginosa | species | 1 | 0 |
| france | | melanelixia subaurifera | species | 1 | 0 |
| germany | | melanelixia subargentifera | species | 2 | 0 |
| greece | | melanelixia fuliginosa subsp. glabratula | subspecies | 2 | 0 |
| india | | melanelixia albertana | species | 1 | 0 |
| india | | melanelixia epilosa | species | 3 | 0 |
| india | | melanelixia villosella | species | 18 | 0 |
| india | uttarakhand | melanelixia villosella | species | 2 | 0 |
| italy | friuli-venezia giulia autonomous region | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| morocco | | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| morocco | | melanelixia glabra | species | 2 | 0 |
| netherlands | | melanelixia fuliginosa | species | 5 | 0 |
| new zealand | | melanelixia calva | species | 3 | 0 |
| new zealand | | melanelixia glabratuloides | species | 4 | 0 |
| new zealand | | melanelixia subglabra | species | 4 | 0 |
| norway | | melanelixia fuliginosa | species | 1 | 0 |
| poland | | melanelixia fuliginosa | species | 2 | 0 |
| poland | | melanelixia glabra | species | 1 | 0 |
| poland | | melanelixia subargentifera | species | 1 | 0 |
| poland | | melanelixia subaurifera | species | 1 | 0 |
| portugal | | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| portugal | braganca district | melanelixia glabra | species | 6 | 0 |
| russia | | melanelixia albertana | species | 11 | 0 |
| russia | | melanelixia epilosa | species | 2 | 0 |
| russia | | melanelixia subaurifera | species | 2 | 0 |
| spain | | melanelixia aff. fuliginosa crespo 6030h (maf) | species | 3 | 0 |
| spain | | melanelixia epilosa | species | 1 | 0 |
| spain | | melanelixia fuliginosa | species | 10 | 0 |
| spain | | melanelixia fuliginosa subsp. glabratula | subspecies | 19 | 0 |
| spain | | melanelixia glabra | species | 19 | 0 |
| spain | | melanelixia subargentifera | species | 13 | 0 |
| spain | | melanelixia subaurifera | species | 4 | 0 |
| spain | andalusia | melanelixia fuliginosa | species | 3 | 0 |
| spain | aragon | melanelixia subargentifera | species | 4 | 0 |
| spain | asturias | melanelixia subaurifera | species | 3 | 0 |
| spain | castile and leon | melanelixia fuliginosa | species | 4 | 0 |
| spain | castilla-la mancha | melanelixia glabra | species | 4 | 0 |
| spain | castilla-la mancha | melanelixia subaurifera | species | 3 | 0 |
| spain | la rioja | melanelixia fuliginosa | species | 7 | 0 |
| spain | la rioja | melanelixia subaurifera | species | 3 | 0 |
| spain | madrid | melanelixia fuliginosa | species | 3 | 0 |
| spain | madrid | melanelixia subargentifera | species | 1 | 0 |
| spain | valencia | melanelixia subargentifera | species | 2 | 0 |
| sweden | | melanelixia fuliginosa | species | 40 | 0 |
| sweden | | melanelixia fuliginosa subsp. glabratula | subspecies | 26 | 0 |
| sweden | | melanelixia subaurifera | species | 2 | 0 |
| switzerland | | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| switzerland | | melanelixia glabra | species | 1 | 0 |
| switzerland | | melanelixia subargentifera | species | 1 | 0 |
| turkey | | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| turkey | | melanelixia glabra | species | 2 | 0 |
| turkey | | melanelixia subargentifera | species | 5 | 0 |
| turkey | bursa province | melanelixia glabra | species | 4 | 0 |
| turkey | zonguldak province | melanelixia glabra | species | 2 | 0 |
| united kingdom | | melanelixia fuliginosa subsp. glabratula | subspecies | 6 | 0 |
| united kingdom | | melanelixia subaurifera | species | 3 | 0 |
| united kingdom | england | melanelixia fuliginosa subsp. glabratula | subspecies | 1 | 0 |
| united kingdom | england | melanelixia subaurifera | species | 4 | 0 |
| united kingdom | scotland | melanelixia aff. fuliginosa lumbsch 20100b (f) | species | 3 | 0 |
| united kingdom | scotland | melanelixia aff. fuliginosa lumbsch 20101a (f) | species | 3 | 0 |
| united kingdom | scotland | melanelixia fuliginosa subsp. glabratula | subspecies | 11 | 0 |
| united states | | melanelixia aff. fuliginosa crespo 6005k (f) | species | 5 | 0 |
| united states | | melanelixia aff. fuliginosa crespo 6005o (f) | species | 2 | 0 |
| united states | | melanelixia aff. fuliginosa robertson 7139 | species | 1 | 0 |
| united states | | melanelixia aff. fuliginosa robertson 7140 | species | 1 | 0 |
| united states | | melanelixia aff. villosella henson 53 (f) | species | 5 | 0 |
| united states | | melanelixia ahtii | species | 35 | 0 |
| united states | | melanelixia albertana | species | 7 | 0 |
| united states | | melanelixia californica | species | 29 | 0 |
| united states | | melanelixia fuliginosa | species | 1 | 0 |
| united states | | melanelixia fuliginosa subsp. glabratula | subspecies | 39 | 0 |
| united states | | melanelixia glabroides | species | 15 | 0 |
| united states | | melanelixia subargentifera | species | 28 | 0 |
| united states | | melanelixia subaurifera | species | 109 | 0 |
| united states | california | melanelixia californica | species | 3 | 0 |
| united states | california | melanelixia fuliginosa | species | 6 | 0 |
| united states | california | melanelixia glabra | species | 3 | 0 |
| united states | california | melanelixia subaurifera | species | 3 | 0 |
| united states | new york | melanelixia subaurifera | species | 1 | 0 |