r9 



diffusa Leight. (Melauotheca) ii. 348 

 diffusa Gray (Parmelia) 222 

 diffusa Mudd (Parmelia) 263 

 difiusum Nyl. (Platysma) 222 

 diffusus Web. (Lichen) 222 

 digitata Hook. (Cenomyce) 170 

 digifcata Hoffm. (Cladonia) 166 

 digitata Gray (ScijpTwphM-a) 166 

 digitatum cinereum, etc. Dill. (Lichen- 

 oides) 287, 290 

 digitatum laete-virens, etc. Dill. 



(Lichenoides) 278 

 digitatum rufescens, etc. Dill. (Lichen- 

 oides) 289 

 digitatus Lightf. (Lichen) 170 

 digitatus Linn. (Z/ic?icM) 166 

 digitatus Sm. (Scyphophorus) 170 

 Dilleniana Koerb. (Leoauaotis) ii. 203 

 DilUniana Aoh. (Lecidea) ii. 203 

 Dillenianus Ach. (Lichen) ii. 203 

 Dillenii With. (Lichen) 325 

 diluta Th. Pr. (Biatorina) ii. 113 

 diluta Leight. (Lecidea) ii. 114 

 diluta Pers. (Pezisa) ii. 113 

 dilutiuscula Nyl. (Lecidea) ii. 98 

 dimera Nyl. (Lecanora) 449 

 diplasiospora A. Zahlbr. (Melaspilea) 



ii. 227 

 diplasiospora Nyl. (Opegrapha) ii. 



227 

 diplinthia Nyl. (Lecanora) 401 

 diploeUum Nyl. (Galicium) 96 

 DIPLOICIA Massal. ii. 165 

 DIPLOTOMMA Plot. ii. 187 

 DIRINA Pr. 490 

 diaciformis Mudd (Buellia) ii. 176 

 disciformis Nyl. (Lecidea) ii. 176 

 discolor Koerb. (BueUia) ii. 168 

 discolor Hepp (Lecidea) ii. 168 

 discolorella Leight. (Lecaworo) ii. 57 

 disoolorella Nyl. (Lecidea) ii. 57 

 (discrete Leight. (LccffiMOj-a) 485 

 discreta Nyl. (Lecanora) 485 

 discreta Nyl. (Parmelia) 256 

 dispansa Nyl. (iecidea) ii. 100 

 disparata S. P. Gray (Hysterina) 



ii. 230 

 dispersa Nyl. (Arthonia) ii. 212 

 dispersa Duf. (Arthonia) ii. 220 

 dispersa Nyl. (Lecanora) 406 

 dispersa Sohrad. (Opegrapha) ii. 212 

 dispersa DC. (Opegrapha) ii. 220 



dispersum Mudd (Arthothel.) ii. 220 

 dispora A. L. Sm. (Miorothel.) ii. 331 

 dissecta Nyl. (Parmelia) 247 

 dissepta A. L. Sm. (Mioroth.) ii. 332 

 dissepta Nyl. (Terrucaria) ii. 332 

 dissidens Nyl. (Lecanora) 361 

 dissipata Nyl. (Lecanora) 405 

 distinctum Th. Pr. (Rhizocarpon) 



ii. 196 

 divergens Nyl. (Aleotoria) 210 

 divergens Ach. (Cornicularia) 210 

 dolichotera Leight. (Verruc.) ii. 266 

 dolichoteron Nyl. (Obryzum) ii. 266 

 dolomitica Massal. (Verruo.) ii. 294 

 dolomiticum Massal. (Amphoridium) 



ii. 294 

 dolosa A. L. Sm. (Biatorina) ii. 128 

 dolosus Sm. (Lichen) ii. 128 

 dubia Hook. (Lecidea) ii. 50 

 dubiella A. L. Sm. (Pharcidia?) 



ii. 344 

 dubiella Nyl. (Verrucaria) ii. 344 

 dubius Sm. (Lichen) ii. 51 

 Dufourei Nyl. (Stiotina) 269 

 Dufourei Aoh. (Lecidea) ii. 143 

 Dufourei Del. (Sticta) 269 

 Dufourii DO. (Verrucaria) ii. 291 

 Dufourii Borr. (Verrucaria) ii. 297 



ebenea Dillw. (Conferva) ii. 3 

 ebeneum A. S. Sm. (Coengonium) ii. 3 

 ebeneus Ag. (Chroolepus) ii. 3 

 ebeneus Thwaites (Cystocoleus) ii. 3 

 efiusa Arnold (Bacidia) ii. 154 

 effusa Ach. (Lecanora) 441 

 effusa Leight. (Lecidea) ii. 154 

 effiosa Mudd (Lecidea) ii. 34 

 effusus Pers. (Lichen) 441 

 effusus Sm; (Lichen) ii. 113, 154 

 egenula Th. Pr. (Bacidia) ii. 157 

 egenula Nyl. (Lecidea) ii. 157 

 EhrhartianaMnidL (Biatorina) ii. 117 

 Ehrhartiana Aoh. (Lecidea) ii. 117 

 Ehrhartianus Aoh. (Lichen) ii. 117 

 elaborata Leight. (Platygramma) ii. 



260 

 elachistophora Nyl. (Verrucaria) ii. 



296 

 elacista Ach. (Parmelia) ii. 23 

 elaiina Gray. (Parmelia) 320 

 elceina Sm. (Squamaria) 321 

 elceina Borr. (FeJTMcoria) ii. 327 



