fimbriatum Hoftm. (Collema) 70 

 fimhriatus Linn. {Lichen) 135 

 fimbriatus Sm. [Scyphophorus) 135 

 firma Nyl. (Gladoma) 128 

 fissa Tayl. (Vemicaria) ii. 311 

 fissum Leight. (Endocarpon) ii. 311 

 flaccidum Ach. (Collema) 44 

 flaccidutn Gray (Lathagrium) 44 

 flaccidiis Aoh. (Lichen) ii 

 flaccidus Mudd {Synechoblastus) ii 

 flavesccns Huds. (iicft«m) 359 

 flavicans Hook, (fiorreia) 295 

 flavicans Sw. (Lichen) 295 

 flavicans With. {Lichen) 361 

 flavicans Tayl. (Parmelia) 295 

 flavicans DC. (Phyacia) 295 

 fl^vicunda Ach. (Lecidea) ii. 68 

 flavocitrina Nyl. (Lecanora) 8Y2 

 flavida Hepp (Lecanora) 478 

 flavortibescens Huds. (Lichen) 373, 374 

 flavovirescens Anzi (Bacidia) ii. 164 

 fl^vovirescens Borr. (Lecidea) ii. 164 

 flavovirescens Dicks. (Liclien) ii. 164 

 flavovirescens Koerb. (iJop/iiospora) 



ii. 164 

 flexella Ach. (iimiorm) ii. 222 

 flexella A. Zahlbr. (Lithogr.) ii. 222 

 flexella Fr. (Xylographa) ii. 222 

 flexuosa Xyl. (Lecidea) ii. 27 

 flexitosa Fr. (Biatora) ii. 27 

 flocculosa Turn. & Borr. (Gyroph.) 333 

 flocculosa Cromb. (XJmbilicaria) 333 

 flocculostis Wulf. (Lichen) 333 

 Ploerkeana Fr. (Cladonia) 172 

 florida Ach. (Usnea) 202 

 floridus Linn. (Liclien) 202 

 FlotoTii Koerb. (Gyalecta) ii. 8 

 Flotooii Carroll (Lecidea) ii. 8 

 flticiigena Nyl. (Vemicaria) ii. 326 

 fluviale Gray (Enchylium) 60 

 fluyiatUe Nyl. (Collemodium) 60 

 fluviatile Sm. (Collema) 60 

 fluviatile DC. (Endocarpon) ii. 269 

 fluviatile Nyl. (Legtogium) 60 

 fluviatilis Huds. (Licften) 60 

 fluviatilis Web. (Lichen) ii. 269 

 foliacetis Huds. (Lichen) 127 

 fossarum Th. Fr. (Biatorella) ii. 107 

 fossarum Duf. (iccwfea) ii. 107 

 foveolaris Mudd. (Gyalecta) ii. 7 

 foveolaris Schaer. (Gyalecta) ii. 6 

 foveolaris Nyl. (Lecidea) ii. 6 



foveolaris Ach. ( D7ceoto-ia) ii. 6 

 foveolata A. L. Sm. (Arthopyrenia) 



ii. 325 

 fragile Tayl. (Collema) 59 

 fragile Nyl. (GoUemodium) 59 

 fragile Nyl. (Leptogium) 59 

 fragilis Huds. (Lichen) 104 

 fragilis Linn. (Lichen) 106 

 fragilis Ach. (Sphasrophorus) 106 

 fragrans Sm. (Collema) 58 

 fragrans Tayl. (CoZZema) 66 

 fragrans Cromb. (Leptogium) 58 

 fragrans Mudd (icptojmm) 66 

 fraxinea Ach. (Bamalina) 190 

 fraxineus Linn. (Lichen) 190 

 Friesii Ach. (Lecidea) ii. 14 

 frigida Gray (iJino(fin<i) 459 

 frigidus Sw. (ijc/ifiji) 459 

 fruticulifuscum, etc. Dill. (Corall.) 218 

 /jMficaM specie, e<c. Dill. (CoraW.) 153, 



154, 175, 219. 

 frustulosa Ach. (Lecanora) 442 

 frustulosa Gray (Eino(Zi7Ki) 442 

 frustiilostcs Dicks. (Lichen) 442 

 fucata Stirton (Lecidea) ii. 106 

 fuciforme tinctorium, etc. Dill. (Lichen- 

 oides) 183 

 fudformis Linn, (iic/ie?!) 183 

 fuciformis DC. (Koccella) 183 

 fucoides Dicks. (Lichen) 182 

 fugax Deakin (yerrucaria) ii. 288 

 fugiens Nyl. (Lecanora) 436 

 fulgens Ach. (Lecanora) 357 

 fulgens Sw. (lAchen) 357 

 fulgens Gray (Placodium) 357 

 fulgens Sm. (Squamaria) 357 

 fuliginea Ach. (Lecidea) ii 31 

 fuliginosa Tayl. (Lecidea) ii. 60 

 fuliginosa Nyl. (Parmelia) 254 

 fuliginosa Gray (Sticta) 267 

 fuliginosa Nyl. (Stictina) 267 

 fuliginosum et pulverulentum, etc. 



DUl. (Lichenoides) 267, 268 

 fuliginosus Dicks. (Lichen) 267 

 fulvus Dicks. (Lichen) 299 

 fulvus Linn. (Mmcoc) 100 

 fumago Mudd (Arthopyrenia) ii. 321 

 fumosa Ach. (Lecidea) ii. 84 

 fumosa Hofim. (T'ejTMcaria) ii. 85 

 fumosus Aoh. (Lichen) ii. 85 

 fungiforme, etc. Dill. (Coralloides) 134 

 fungiformis With. (Lichen) 110 



