Lichen Taxa held in MSC
| Genus | Species | N | MI | WI | S | Aus | E | Af | As | Notes | ||
| Ocellularia | americana | N | . | . | . | . | . | . | . | |||
| Ocellularia | berkeleyana | . | . | WI | . | . | . | . | . | |||
| Ocellularia | cavata | N | . | WI | . | . | . | . | . | |||
| Ocellularia | chionostoma | N | . | . | . | . | . | . | . | |||
| Ocellularia | concolor | N | . | WI | . | . | . | . | . | |||
| Ocellularia | culmicola | . | . | . | . | Aus | . | . | . | Comm. & Imsh. | ||
| Ocellularia | dilatata | N | . | WI | . | . | . | . | . | |||
| Ocellularia | dolichospora | N | . | . | . | . | . | . | . | |||
| Ocellularia | domingensis | N | . | WI | . | . | . | . | . | not NA | ||
| Ocellularia | emersa | . | . | WI | . | . | . | . | . | |||
| Ocellularia | exanthismocarpa | . | . | WI | . | . | . | . | . | |||
| Ocellularia | fecunda | . | . | WI | . | . | . | . | . | |||
| Ocellularia | fernandeziana | . | . | . | S | . | . | . | . | Imsh. | ||
| Ocellularia | fissa | . | . | WI | . | . | . | . | . | |||
| Ocellularia | granulosa | N | . | . | . | . | . | . | . | |||
| Ocellularia | interposita | . | . | WI | . | . | . | . | . | |||
| Ocellularia | leiostoma | N | . | . | . | . | . | . | . | |||
| Ocellularia | maculata | . | . | WI | . | . | . | . | . | |||
| Ocellularia | masafuerana | . | . | . | S | . | . | . | . | Imsh. | ||
| Ocellularia | micropora | . | . | WI | . | . | . | . | . | |||
| Ocellularia | mordnii | . | . | WI | . | . | . | . | . | |||
| Ocellularia | nigropuncta | . | . | WI | . | . | . | . | . | |||
| Ocellularia | olivacea | . | . | WI | . | . | . | . | . | |||
| Ocellularia | papillata | . | . | WI | . | . | . | . | . | |||
| Ocellularia | patagonica | . | . | . | S | . | . | . | . | Imsh. | ||
| Ocellularia | perforata | . | . | WI | . | . | . | . | . | |||
| Ocellularia | praestans | N | . | WI | . | . | . | . | . | |||
| Ocellularia | rhabdospora | N | . | WI | . | . | . | . | . | |||
| Ocellularia | rhododstoma | N | . | WI | . | . | . | . | . | |||
| Ocellularia | rimosa | . | . | WI | . | . | . | . | . | |||
| Ocellularia | sanfordiana | N | . | . | . | . | . | . | . | |||
| Ocellularia | subcavata | . | . | WI | . | . | . | . | . | |||
| Ocellularia | subemersa | . | . | WI | . | . | . | . | . | |||
| Ocellularia | ?sublilauria | . | . | WI | . | . | . | . | . | |||
| Ocellularia | xanthostoma | . | . | WI | . | . | . | . | . | |||
| Ochrolechia | africana | N | . | . | . | . | . | . | . | |||
| Ochrolechia | alectronica | . | . | . | . | Aus | . | . | . | Imsh. | ||
| Ochrolechia | antarctica | . | . | . | S | . | . | . | . | |||
| Ochrolechia | antillarum | . | . | WI | . | . | . | . | . | |||
| Ochrolechia | androgyna | N | . | . | . | Aus | E | . | . | |||
| Ochrolechia | arborea | N | MI | . | . | . | . | . | . | |||
| Ochrolechia | frigida | N | . | . | S | . | E | . | . | |||
| Ochrolechia | gowardii | N | . | . | . | . | . | . | . | |||
| Ochrolechia | inaequatula | N | . | . | . | . | . | . | . | |||
| Ochrolechia | juvenalis | N | . | . | . | . | . | . | . | |||
| Ochrolechia | lactea | . | . | . | . | . | E | . | . | |||
| Ochrolechia | laevigata | N | . | . | . | . | . | . | . | |||
| Ochrolechia | malmei | . | . | . | S | . | . | . | . | |||
| Ochrolechia | mexicana | N | MI | WI | . | . | . | . | . | |||
| Ochrolechia | montana | N | . | . | . | . | . | . | . | |||
| Ochrolechia | oregonensis | N | . | . | . | . | . | . | . | |||
| Ochrolechia | pallescens | . | . | . | S | . | E | . | . | |||
| Ochrolechia | parella | N | . | . | . | . | E | . | . | not in NA | ||
| Ochrolechia | pseudopallescens | N | MI | WI | . | . | . | . | . | |||
| Ochrolechia | quaterna | . | . | . | . | Aus | . | . | . | Imsh. | ||
| Ochrolechia | rhodoleuca | N | . | . | . | . | . | . | . | |||
| Ochrolechia | subplicans | var. | hultenii | N | . | . | . | . | . | . | . | |
| Ochrolechia | subviridis | . | . | . | . | . | E | . | . | |||
| Ochrolechia | szatalaensis | N | . | . | . | . | . | . | . | |||
| Ochrolechia | tartarea | . | . | . | . | . | E | . | . | |||
| Ochrolechia | trochophora | N | MI | . | . | . | . | . | . | |||
| Ochrolechia | trochophora | var. | pruinirosella | . | MI | . | . | . | . | . | . | |
| Ochrolechia | turneri | . | . | . | . | . | E | . | . | |||
| Ochrolechia | upsaliensis | N | . | . | . | . | E | . | . | |||
| Ochrolechia | verrucosa | N | . | . | . | . | . | . | . | ?Megaspora | ||
| Ochrolechia | yasudae | N | . | . | . | . | . | . | . | |||
| Omphalina | hudsoniana | N | . | . | . | . | E | . | . | |||
| Omphalodium | pisacomeris | . | . | . | S | . | . | . | . | |||
| Omphalora | arizonica | N | . | . | . | . | . | . | . | |||
| Opegrapha | astraea | N | . | . | . | . | . | . | . | |||
| Opegrapha | atra | N | . | . | . | . | E | . | . | |||
| Opegrapha | calcarea | . | . | . | . | . | E | . | . | |||
| Opegrapha | centrifuga | . | . | . | . | . | E | . | . | lichenicolous | ||
| Opegrapha | cypressi | N | . | . | . | . | . | . | . | |||
| Opegrapha | demista | N | . | . | . | . | . | . | . | |||
| Opegrapha | falklandica | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | fernandeziana | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | filicina | . | . | WI | S | . | . | . | . | |||
| Opegrapha | flavovirens | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | gyrocarpa | . | . | . | . | . | E | . | . | |||
| Opegrapha | hassei | N | . | . | . | . | . | . | . | |||
| Opegrapha | hebensis | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | herbarum | N | . | . | . | . | E | . | . | |||
| Opegrapha | immersa | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | leucoplaca | N | . | . | . | . | . | . | . | |||
| Opegrapha | lithyrga | . | . | . | . | . | E | . | . | |||
| Opegrapha | longissima | N | . | . | . | . | . | . | . | |||
| Opegrapha | macloviana | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | masafuerana | . | . | . | S | . | . | . | . | Imsh. | ||
| Opegrapha | ?martin | N | . | . | . | . | . | . | . | |||
| Opegrapha | prosodea | N | MI | . | . | . | . | . | . | |||
| Opegrapha | pseudo-aglaea | . | . | . | S | . | . | . | . | |||
| Opegrapha | quisqueseptata | . | . | . | S | . | . | . | . | |||
| Opegrapha | rufescens | . | . | . | . | . | E | . | . | |||
| Opegrapha | rupestris | . | . | . | . | . | E | . | . | |||
| Opegrapha | taxicola | . | . | . | . | . | E | . | . | |||
| Opegrapha | tribulodes | N | . | . | . | . | . | . | . | |||
| Opegrapha | varia | N | MI | . | . | . | E | . | . | |||
| Opegrapha | vermicellifera | . | . | . | . | . | E | . | . | |||
| Opegrapha | viridis | N | . | . | . | . | E | . | . | |||
| Opegrapha | vulgata | N | . | . | . | . | E | . | . | |||
| Opegrapha | vulgata | var. | subsid’lla | . | . | . | . | . | E | . | . | |
| Ophioparma | lapponica | N | . | . | . | . | . | . | . | |||
| Ophioparma | rubricosa | N | . | . | . | . | . | . | . | |||
| Orceolina | kerguelensis | . | . | . | . | Aus | . | . | . | |||
| Oropogon | atranorinus | . | . | WI | . | . | . | . | . | |||
| Oropogon | bicolor | . | . | WI | . | . | . | . | . | |||
| Oropogon | caespitosum | N | . | . | . | . | . | . | . | |||
| Oropogon | loxensis | . | . | WI | . | . | . | . | . | |||
| Orphniospora | moriopsis | N | . | . | . | . | E | . | . |
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