Gattungen assoziierter Organismen: Faba [12 Taxa], Fabiana [2 Taxa], Fadogia [10 Taxa], Fagara [50 Taxa], Fagopyrum [55 Taxa], Fagraea [8 Taxa], Fagus [2458 Taxa], Falcaria [217 Taxa], Falcipennis [5 Taxa], Fallopia [63 Taxa], Faramea [17 Taxa], Farlowiella [2 Taxa], Farsetia [1 Taxon], Fatsia [3 Taxa], Faurea [16 Taxa], Favolaschia [1 Taxon], Favolus [5 Taxa], Feijoa [21 Taxa], Felis [11 Taxa], Feltgeniomyces [1 Taxon], Fenestraria [1 Taxon], Fennellia [7 Taxa], Feretia [1 Taxon], Feronia [9 Taxa], Feronia [1 Taxon], Ferraria [3 Taxa], Ferrarisia [2 Taxa], Ferrisicoccus [2 Taxa], Ferula [18 Taxa], Ferulago [2 Taxa], Festuca [283 Taxa], Fevillea [9 Taxa], Fezia [1 Taxon], Fibigia [4 Taxa], Ficaria [93 Taxa], Ficus [1328 Taxa], Fidicina [2 Taxa], Fieldia [3 Taxa], Filago [4 Taxa], Filicium [3 Taxa], Filipendula [160 Taxa], Fimbriaria [1 Taxon], Fimbristylis [141 Taxa], Fingerhuthia [6 Taxa], Firmiana [11 Taxa], Fischeria [16 Taxa], Fissicalyx [2 Taxa], Fitzroya [20 Taxa], Flabellaria [1 Taxon], Flacourtia [41 Taxa], Flammulina [2 Taxa], Flaveria [2 Taxa], Flavobacterium [1 Taxon], Flavocetraria [1 Taxon], Flavocetrariella [1 Taxon], Flavoparmelia [10 Taxa], Flemingia [37 Taxa], Fleurya [2 Taxa], Flindersia [1 Taxon], Flotovia [6 Taxa], Flourensia [3 Taxa], Flueggea [19 Taxa], Foeniculum [75 Taxa], Fomes [17 Taxa], Fomitopsis [6 Taxa], Fontanesia [1 Taxon], Forchhammeria [2 Taxa], Forestiera [5 Taxa], Forsteronia [9 Taxa], Forsythia [65 Taxa], Fortunella [3 Taxa], Fothergilla [1 Taxon], Foveostroma [2 Taxa], Fragaria [406 Taxa], Francoa [6 Taxa], Francolinus [2 Taxa], Frangula [276 Taxa], Frankenia [4 Taxa], Franklandia [1 Taxon], Franseria [1 Taxon], Frasera [1 Taxon], Fraserula [2 Taxa], Fraxinus [1424 Taxa], Freesia [20 Taxa], Fritillaria [5 Taxa], Frullania [1 Taxon], Fuchsia [23 Taxa], Fucus [13 Taxa], Fuirena [36 Taxa], Fulgensia [1 Taxon], Fuligo [10 Taxa], Fulvia [8 Taxa], Fumago [8 Taxa], Fumaria [14 Taxa], Funaria [3 Taxa], Funastrum [3 Taxa], Funtumia [35 Taxa], Furcaspis [2 Taxa], Furcraea [31 Taxa], Fusariella [2 Taxa], Fusarium [231 Taxa], Fuscophialis [6 Taxa], Fuscoporia [2 Taxa], Fusicladium [21 Taxa], Fusidium [1 Taxon], Fusoma [1 Taxon]