fimbriatum Hofim. [Collema) 70
fimbriatus Lìnn. (Lichen) 135
fimbriatus Sm. (Scyphophorus) 135
firma Nyl, (Cladonia) 128
fissa Tayl. (Verrucaria) ii. 311
fissimi Leiglit. (Endocarpon) ii. 311
flaooidum Ach. (Collema) 44
fiaccidum Gray (Laihagrium) 44
fiaccidus Aoh. (Lichen) 44
flaccidus Mudd (Synechoblastus) 44
fiavcscens Huds. (Lichen) 359
jlavicans Hook. (Borrera) 295
fiavicans Sw. (Lichen) 295
fiavicans With. (Lichen) 361
fiavicans Tayl. (Parmelia) 295
fiavicans DO. (Physcia) 295
flavicunda Ach. (Lecidea) ii. 68
flavocitrina Nyl. (Lecanora) 372
flavida Hepp (Lecanora) 478
fiavorubescens'Bxià.?,. (Lichen) 373,374
flavovirescens Anzi (Bacidia) ii. 164
flavovirescens Borr. (Lecidea) ii. 164
flavovirescens Dicks. (Lichen) ii. 164
flavovirescens Koerb. (Baphiospora)
ii. 164
flexclla Aoh. (Limhoria) ii. 222
flexella A. Zahlbr. (Lithogr.) ii. 222
flexclla Pr. (Xylographa) ii. 222
flexuosa Nyl. (Lecidea) ii. 27
flexuosa Vr. (Biatora.) ii. 27
floeonlosa Turn. &Borr. (Gyroph.) 333
flocculosa Cromb. (Vmbilicaria) 333
flocculosus Wulf. (Lichen) 333
Floerkeana Fr. (Cladonia) 172
florida Ach. (Usnea) 202
floridus Linn. (Lichen) 202
Flotovii Koerb. (Gyalecta) ii. 8
Flotovii Carroll (Lecidea) ii. 8
fluctigena Nyl. (Verrucaria) ii. 326
fluviale Gray (Enchylium) 60
fluviatile Nyl. (Gollemodium) 60
fluviatile Sm. (Collema) 60
fluviatile DG. (Endocarpon) ii. 269
fluviatile Nyl. (Legtogium) 60
fluviatilis Huds. (Lichen) 60
fluviatilis Web. (Lichen) ii. 269
foliaceus Huds. (Lichen) 127
fossarum Th. Pr. (Biatorella) ii. 107
fossarum Duf. (Lecidea) ii. 107
foveolaris Mudd. (Gyalecta) ii. 7
foveolaris Schær. (Gyalecta) ii. 6
foveolaris Nyl. (Lecidea) ii. 6
foveolaris Ach. (Vrccolaria) ii. 6
foveolata A. L. Sm. (Arthopyrenia)
ii. 325
fragile Tajd. (Collema) 59
fragile Nyl. (Gollemodium) 59
fragile Nyl. (Lcptogmm) 59
fragilis Huds. (Lichen) 104
fragilis Linn. (Lichen) 106
fragilis Ach. (Sphærophorus) 106
fragrane Sm. (Collema) 58
fragrane Tayl. (Collema) 66
fragrans Cromb. (Leptogium) 58
fragrans Mudd (Leptogium) 66
fraxinea Ach. (Ramalina) 190
fraxineus Linn. (Lichen) 190
Friesii Ach. (Lecidea) ii. 14
frigida Gray (Binodina) 459
frigidìis Sw. (Lichen) 459
fruticuli fuscum, etc. Dill. (Coì'all.) 218
fruticuli specie, etc. Dill. (Corali.) 153,
154, 175, 219.
frustulosa Ach. (Lecanora) 442
frustulosa Gray (Binodina) 442
frustulosus Dicks. (Lichen) 4.42
fucata Stirton (Lecidea) ii. 106
fuciforme tinctorium, etc. Dill. (Lichenoides)
183
fuciformis Linn. (Lichen) 183
fuciformis DC. (Roocella) 183
fucoides Dicks. (Lichen) 182
fugax Deakin (Verrucaria) ii. 288
fugiens Nyl. (Lecanora) 436
fulgens Aoh. (Lecanora) 357
fulgens Sw. (Lichen) 357
fulgens Gray [Placodium) 357
fulgens Sm. (Sguamaria) 357
fuliginea Ach. (Lecidea) ii. 31
fuliginosa Tayl. (Lecidea) ii. 60
fuliginosa Nyl. (Parmelia) 254
fuliginosa Gray (Sticta) 267
fuliginosa Nyl. (Stiotina) 267
fuliginosum et pulverulentum, etc.
Dill. (Lichenoides) 267, 268
fuliginosus Dicks. (Lichen) 267
fulvus Dicks. (Lichen) 299
fulvus Linn. (Mucor) 100
fumago Mudd (Arthopyrenia) ii. 321
fumosa Ach. (Lecidea) ii. 84
fumosa Hofim. (Verrucaria) ii. 85
fumosus Ach. (Lichen) ii. 85
fungiforme, etc. Dill. (Coralloides) 134
fungifarmis With. (Lichen) 110
furcata Hook. (Cenomyce) 150
furcata Gray (Cladonia) 150
furcata Hoffm. (Cladonia) 149
furcata Sm. (Cladonia) 152
furoatiformis Nyl. (Cladonia) 155
furcatus Huds. (Lichen) 152
furfuracea Gray (Borrera) 230
furfuraoea Ach. (Coniocybe) 99
furfuracea Fr. (Fvernia) 230
fzcrfuracea Tayl. (Parmelia) 230
furfuracea With. (Trichia) 99
furfuracczcm Turn. & Borr. (Calicium)
99
furfuraceus Tayl. (Boeomyces) 99
furfuraceus Linn. (Lichen) 230
furfuraceus Linn. (Mucor) 99
furfurea Nyl. (Pyrenopsis) 25
furfurella Nyl. (Collemopsis) 79
furfurellum Nyl. (Collema) 79
furfureum Nyl. (Collema) 25
furvella Nyl. (Lacidea) ii. 94
furvescens A. L. Sm. (Porina) ii. 338
furvescens Nyl. (Verrucaria) ii. 338
furvum Ach. (Collema) 43
furvum Gray (Lathagrium) 43
furvus Ach. (Lichen) 43
fusca Cromb. (Lecidea) ii. 37
fuscai a Nyl. (Lecanora) 483
fuscatula Nyl. (Pyrenopsis) 24
fuscatus Schrad. (Lichen) 483
fuscella Mndd (Lecania) 448
fuscella Pr. [Sagedia) ii. 290
fuscella Ach. (Verrucaria) ii. 289
fuscellum Ach. (Endocarpon) ii. 290
fuseellus Turn. (Lichen) ii. 290
fuscescens Nyl. (Lecanora) 423
fuscescens Somm. (Lecidea) 423
fuscoargiUacea Anzi (Polyblastia) ii.
301
fuscoargiUacea Oromb. (Verrucaria)
ii. 301
fuscoater L. (Lichen) ii. 85
fuscoatra Nyl. (Lecanora) 377
fuscoatra Ach. (Lecidea) ii. 84
fusco-cinerascens Nyl. (Verrucaria)
ii. 286
fuscocinerea Nyl. (Lecidea) ii. 91
fuscolutea Ach. (Lecidea) ii. 199
fuscoluteolina Mudd (Lecanora) 389
fuscoluteum Mudd (Lopadium) ii. 199
fuscoluteus Dicks. (Lichen) ii. 199
fuscorubella Arnold (Bacidia) ii. 153
fuscorubella Cromb. (Lecidea) ii. 153
fuscorubellaHo&vii. (Verrucar.) ii. 153
fuscorubens Nyl. (Lecidea) ii. 39
fuscorubens Nyl. (Biatora) ii. 89
fuscum, peltis, etc. Dill. (Lichen.) 284
fuscus Huds. (Lichen) 310
fusiformis Leight. (Verrucar.) ii. 334
Gagei Hook. (Lecidea) ii. 128
Gagei A. L. Sm. (Lecidea) ii. 21
Gagei Sm. (Lichen) ii. 21
Gagei Borr. (Verrucaria) ii. 21
galactina Ach. (Lecanora) 404
galactina Ach. (Parmelia) 405
ga.lactinaria’Leight. (Arthonia) ii. 219
galactites Duf. (Arthonia) ii. 211
galactites DG. (Verrucaria) ii. 211, 318
galbulus Ramond (Lichen) ii. 181
gangaleoides Nyl. (Lecanora) 416
Garovaglii Mudd (Dermatocarpon)
ii. 274
Garovaglii Mont. (Verrucaria) ii. 274
gelasinatus With. (Lichen) 83
gelatinosa Floerke (Lecidea) ii. 28
gelatinosa Chev. (Arthonia) ii. 347
gelatinosa Nyl. (Melanotheca) ii. 347
gelatinosa Th. Fr. (Polyblast.) ii.'303
gelatinosa Ach. (Verrucai'ia) ii. 303
gelatinosum atro-virens, etc. Dill.
(Lichenoides) 43
gelida Ach. (Lecanora) 356
gelida Sm. (Squamaria) 356
gelidaria A. L. Sm. (Didymosphæria)
ii. 344
gelidaria Mudd (Sphæria) ii. 344
gelidarium Berl. & Vogl. (Ticothecium)
ii. 344
gelidum Gray (Placodium) 356
gelidus Linn. (Lichen) 356
gelidus Huds. (Lichen) 456
geminata Flot. (Lecidea) ii. 198
geminatum Koerb. (Rhizooarp.) ii. 197
geminipara Fr. (Lecanora) 463
gemmata Koerb. (Acrocordia) ii. 313
gemmata S. F. Gray (Lejophlea) ii.
313
gemmata Aoh. (Verrucaria) ii. 313
gemmatum Mudd (Thelidium) ii. 313
gemmatus Ach. (Lichen) ii. 313
gemmifera Tayl. (Verrucaria) ii. 343
gemmiferum Koerb. (Ticothecium)
ii. 343