Lichen Taxa held in MSC
| Genus | Species | N | MI | WI | S | Aus | E | Af | As | Notes | ||
| Farnoldia | jurana | N | MI | . | . | . | E | . | . | |||
| Farnoldia | micropsis | N | . | . | . | . | E | . | . | |||
| Fellhanera | boutellii | N | . | WI | . | . | E | . | . | |||
| Fellhanera | rhapidophylla | . | . | WI | . | . | . | . | . | |||
| Fellhanera | subtilis | . | . | . | . | . | E | . | . | |||
| Flakea | papillata | N | . | . | . | . | . | . | . | |||
| Flavocetraria | cucculata | N | . | . | . | . | . | . | . | |||
| Flavocetraria | nivalis | N | . | . | S | . | E | . | . | |||
| Flavoparmelia | baltimorensis | N | . | . | . | . | . | . | . | |||
| Flavoparmelia | caperata | N | MI | WI | S | Aus | E | . | . | |||
| Flavoparmelia | ecuadoriensis | . | . | . | S | . | . | . | . | |||
| Flavoparmelia | hysonii | . | . | . | . | Aus | . | . | . | |||
| Flavoparmelia | haywardiorum | . | . | . | . | Aus | . | . | . | |||
| Flavoparmelia | papillosa | . | . | . | S | . | . | . | . | |||
| Flavoparmelia | rutidota | N | . | . | S | Aus | . | . | . | |||
| Flavopunctelia | darrowii | N | . | . | . | . | . | . | . | |||
| Flavopunctelia | flaventior | N | MI | . | S | . | . | Af | . | |||
| Flavopunctelia | praesignis | N | . | . | . | . | . | . | . | |||
| Flavopunctelia | sordica | N | MI | . | . | . | . | . | . | |||
| Frutidella | caesioatra | N | . | . | . | . | E | . | . | |||
| Fulgensia | bracteata | N | . | . | . | . | E | . | . | |||
| Fulgensia | fulgens | N | . | . | . | . | . | . | . | |||
| Fuscidea | asbolodes | . | . | . | . | Aus | . | . | . | |||
| Fuscidea | austera | . | . | . | . | . | E | . | . | |||
| Fuscidea | cyathoides | . | . | . | . | . | E | . | . | |||
| Fuscidea | gothobergensis | . | . | . | . | . | E | . | . | |||
| Fuscidea | lowensis | N | . | . | . | . | . | . | . | |||
| Fuscidea | lygaea | . | . | . | . | . | E | . | . | |||
| Fuscidea | mollis | . | . | . | . | . | E | . | . | with Schaereria cinereorufa | ||
| Fuscidea | recensa | N | . | . | . | . | . | . | . | |||
| Fuscidea | subreagens | N | . | . | . | . | . | . | . | |||
| Fuscoderma | amphibolum | . | . | . | . | Aus | . | . | . | |||
| Fuscopannaria | leucophaea | N | MI | . | . | . | . | . | . | |||
| Fuscopannaria | leucosticta | N | . | WI | . | . | . | . | . | |||
| Fuscopannaria | praetermissa | N | MI | . | . | . | E | . | . | |||
| Fuscopannaria | saubinetii | N | . | . | . | . | . | . | . | |||
| Fuscopannaria | subimmixta | . | . | . | . | Aus | . | . | . |
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