394 



nolens Nyl. (Pertusaria) 508 

 NOEMANDINA Nyl. ii. 272 

 notha S. P. Gray (Alyxorw) ii. 240 

 notha Ach. {Opegrapha) ii. 240 

 nothiza Nyl. (Opegrapha) ii. 236 

 nothus Ach. {Lichen) ii. 240 

 Nylanderi Hepp (Sa^edia) ii. 298 

 Nylanderi Krempelh. (Thelid.) ii. 298 

 Nylandet-iana Mass. (Liecania) 448 

 Nylanderiana Nyl. (Lecanora) 448 



oblongans Nyl. (Collemopsis) 79 

 OBEYZUMWallr. ii. 265 

 ohsaura Mudd (Borrera) 318 

 obscjira Pers. {Opegrapha) ii. 850 

 obsciira Nyl. (Physcia) 318 

 ohscura Tayl. (Verrucaria) ii. 259 

 ohsciirata Schaer. (Lecidea) ii. 197 

 obsciiratum Massal. (Rhizocarpon) ii. 



196 

 obscurum A. L. Sm. (MycoporeUum) 



u. 350 

 obscurum Almqu. {Mycaporum) ii. 350 

 obscurus Ehrli. (Lichen) 318 

 obscunis Sm. {Lichen) ii. 258 

 obscurus With. {Lichen) 310 

 obsoleta Nyl. (Lecidea) ii. 97 

 obturbans A. L. Sm. (Biatorin.) ii. 131 

 obturbans Nyl. (Lecidea) ii. 131 

 occulta Koerb. (Buellia) ii. 167 

 occulta Leight. (Lecidea) ii. 167 

 ocellata Koerb. (Buellia) ii. 172 

 ocellata Floerke (Lecidea) ii. 172 

 ochracea Duf. (Arthonia) ii. 211 ' 



ochracea Mudd (Aspidlia) 4TS I 



ochracea Hepp (Biatord) ii. 41 

 ochracea Nyl. (Lecanora) 875 \ 



ochracea Wedd. (Lecidea) ii. 41 

 ochracea Schaer. (Lecidea) 375 ' 



ochraceum Mudd (Gallopisma) 375 

 ochrocheila Nyl. (Opegrapha) ii. 232 

 ochrochlora Floerke (Cladonia) 142 

 ochrococca Nyl. (Lecidea) ii. 36 

 ochroleuca Nyl. (Alectoria) 208 

 ochroleuca Hook. (Cornicularia) 208 

 ochroleucus Ehrh. (Lichen) 208 

 ochroleucus With. (Lichen) 210 

 ochrophora Th. Pr. (BiatoreUa) ii. 107 

 ochrophora Nyl. (Lecidea) ii. 108 

 ochrostoma Borr. (Sagedia) ii. 284 

 ochrostoma iludd (Verrucaria) ii. 284 

 ochrothalamia Nyl. (Melasp.) ii. 227 



oculata Ach. (Lecanora) 465 

 oculata Gray (Binodina) 465 

 oculatum Turn. & Borr. (Isidiuvi) 465 

 oculalus Dicks. (Lichen) 465 

 oculafiis E. Bot. 1. 1&33 (Licheii) 493 

 odonteUa Ach. (Cetraria) 219 

 odontellus Ach. (Lichen) 219 

 CEderi Tayl. (Lecidea) 476 

 (Ederi Ach. (Lecidea) ii. 188 

 (Eden Web. (Lichen) ii. 188 

 (Ederi E. Bot. t. 1117 (Licheji) 476 

 OSderi Koerb. (Bhizocarpon) ii. 187 

 olivacea Mudd (Arthopyrenia) U. 337 

 olivacea Ach. (Parmelia) 251 

 olivacea Gray (Parmelia) 251 

 olivacea A. L. Sm. (Porina) ii. 337 

 olivacea Pers. (Verrucaria) ii. 337 

 oZJroceiiTO, scutellis etc. Dill. (XiicA«n- 



oides) 251, 252, 254 

 olivcuxus Huds. (Lichen) 251 

 olivetorum Nyl. (Parmelia) 234 

 omphalodes Xiinn. (Lichen) 243 

 omphalodes Ach. (Parmelia) 243 

 OPEGRAPHA Humb. ii. 229 

 ophthahuiza Nyl. (Pertusaria) 496 

 oreina Ach. (Lecanora) ii. 352 

 oreina Wainio (Biiiodina) ii. 352 

 oribata Nyl. (Lecidea) ii. 160 

 orosthea Ach. (Lecanora) 429 

 orosthea Gray (Lecidea) 429 

 orostheus Ach. (Lichen) 429 

 orostheus E. Bot. 1. 1549 (Zric/ien) 432 

 orphnaeUla Stirton (Lecidea) ii. 93 

 ostreata Schaer. (Lecidea) ii. 14 

 ostreata HofEm. (Psora) ii. 14 

 ovata Deak. (Verrucaria) ii. 286 

 oxyspora Mudd (Artliapyrenia) ii. 330 

 oxyspora Nyl. (Lecidea) ii. 103 

 oxysponis Tul. (Abrothallus) ii. 103 



pachycarpa Pr. (BiatorcC) ii. 198 

 pachycarpa Massal. (Bomby.) ii. 198 

 pachycarpa Duf. (Lecidea) ii. 198 

 pallesnens Nyl. (Lecanora) 462 

 pallescens With. (Lichen) 423 

 pallescens Linn. (Lichen) 463 

 pallida Pr. (Coniocybe) 100 

 pallida Nyl. (Verrucaria) ii. 275 

 pallidum Pers. (Caiiciitm) 100 

 pallidum Mudd (Dermatocarp.) ii. 275 

 pallidum Ach. (Endocarpon) ii. 275 

 pallidtis Dicks. (Lichen) 417 



