Lichen Taxa held in MSC
| Genus | Species | N | MI | WI | S | Aus | E | Af | As | Notes | ||
| Nadvorikia | sorediata | N | . | . | . | . | . | . | . | |||
| Naetrocymbe | fraxini | . | . | . | . | . | E | . | . | |||
| Naetrocymbe | punctiformis | N | MI | . | . | . | E | . | . | |||
| Nectria | parmeliae | N | . | . | . | . | . | . | . | lichenicolous | ||
| Nectria | pityroides | . | MI | . | . | . | . | . | . | lichenicolous | ||
| Nectriopsis | lecanodes | . | . | . | . | . | E | . | . | lichenicolous | ||
| Neofuscelia | ahtii | N | . | . | . | . | . | . | . | |||
| Neofuscelia | atticoides | N | . | . | . | . | . | . | . | |||
| Neofuscelia | chiricahuensis | N | . | . | . | . | . | . | . | |||
| Neofuscelia | glabrans | . | . | . | . | Aus | . | . | . | |||
| Neofuscelia | loxodella | . | . | . | . | Aus | . | . | . | |||
| Neofuscelia | loxodes | N | . | . | . | . | E | . | . | |||
| Neofuscelia | masafuerana | . | . | . | S | . | . | . | . | Imsh. | ||
| Neofuscelia | pulla | N | . | . | . | Aus | E | . | . | not in NA | ||
| Neofuscelia | selkirkii | . | . | . | S | . | . | . | . | Imsh. | ||
| Neofuscelia | stygioides | . | . | . | . | Aus | . | . | . | |||
| Neofuscelia | verruculifera | N | . | . | . | . | . | . | . | |||
| Neophyllis | melacarpa | . | . | . | . | Aus | . | . | . | |||
| Nephroma | analogicum | . | . | . | S | . | . | . | . | |||
| Nephroma | antarcticum | . | . | . | S | . | . | . | . | |||
| Nephroma | arcticum | N | . | . | . | . | E | . | As | |||
| Nephroma | australe | . | . | . | . | Aus | . | . | . | |||
| Nephroma | bellum | N | MI | . | . | . | E | . | . | |||
| Nephroma | cellulosum | . | . | . | S | Aus | . | . | . | |||
| Nephroma | chubutense | . | . | . | S | . | . | . | . | |||
| Nephroma | expallidum | N | . | . | . | . | E | . | . | |||
| Nephroma | helveticum | N | MI | WI | . | . | E | Af | . | |||
| Nephroma | isidiosum | N | . | . | . | . | . | . | . | |||
| Nephroma | laevigatum | N | . | . | . | . | E | . | . | |||
| Nephroma | lepidophyllum | . | . | . | S | . | . | . | . | |||
| Nephroma | parile | N | MI | . | . | . | E | . | . | |||
| Nephroma | plumbeum | . | . | . | S | Aus | . | . | . | |||
| Nephroma | pseudoparile | . | . | . | S | . | . | . | . | |||
| Nephroma | resupinatum | N | MI | . | . | . | E | . | . | |||
| Nephroma | rufum | . | . | . | . | Aus | . | . | . | |||
| Nephroma | subparile | . | . | . | . | . | E | . | . | |||
| Nephroma | tangeriense | . | . | . | . | . | E | . | . | |||
| Nephromopsis | asahinea | . | . | . | . | . | . | . | As | |||
| Nephromopsis | ectocarpisma | . | . | . | . | . | . | . | As | |||
| Nephromopsis | endocrocea | . | . | . | . | . | . | . | As | |||
| Nephromopsis | ornata | . | . | . | . | . | . | . | As | |||
| Nephromopsis | pallescens | . | . | . | . | . | . | . | As | |||
| Nephromopsis | pseudocomplicata | . | . | . | . | . | . | . | As | |||
| Nesolechia | vitelliniaria | . | MI | . | . | . | . | . | . | lichenicolous | ||
| Neuropogon | acromelans | . | . | . | S | Aus | . | . | . | |||
| Neuropogon | antarcticus | . | . | . | S | Aus | . | . | . | |||
| Neuropogon | aurantiaco-ater | . | . | . | S | . | . | . | . | |||
| Neuropogon | ciliatus | . | . | . | S | Aus | . | . | . | |||
| Neuropogon | fasiculatus | . | . | . | S | . | . | . | . | |||
| Neuropogon | perpusillus | . | . | . | S | . | . | . | . | |||
| Neuropogon | sphacelatus | N | . | . | S | . | E | . | . | |||
| Neuropogon | subcapillaris | . | . | . | . | Aus | . | . | . | |||
| Neuropogon | taylorii | . | . | . | . | Aus | . | . | . | |||
| Neuropogon | trachycarpus | . | . | . | S | Aus | . | . | . | |||
| Niebla | homalea | N | . | . | . | . | . | . | . | |||
| Niebla | josecuervoi | N | . | . | . | . | . | . | . | |||
| Niebla | pulchribarbara | N | . | . | . | . | . | . | . | |||
| Nodobryoria | abbreviata | N | . | . | . | . | . | . | . | |||
| Nodobryoria | oregana | N | . | . | . | . | . | . | . | |||
| Nodobryoria | subdivergens | N | . | . | . | . | . | . | . | |||
| Normandina | pulchella | N | MI | WI | S | . | E | . | . | |||
| Notolecidea | subcontinua | . | . | . | . | Aus | . | . | . |
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