300 
Ceesia, Fr. (Physcia), 218, 246. 
Ceesio-rufus, Sm. (Lichen), 265. 
Ccespititia, Ach. (Cladonia), 113, 160. 
Calicaris, Fr. (Ramalina), 126, 127, 128, 129, 130, 
131, 132. 
Calicaris, Fr. (Lichen), 128. 
Callopismum, Mér. (Placodium), 262. 
Canariensis, Nyl. (Sticta), 194, 196. 
Candelaria, Ach. (Physcia), 250, 252. 
Candicans, Dub. (Placodium), 262, 263. 
Candicans, Dicks. (Lichen), 262, 263. 
Canescens, Ach. (Lecidea), 255. 
Canina, Hoffm. (Peltigera), 174. 
Caperata, Ach. (Parmelia), 207, 210, 231, 232, 233. 
Capitellata, Bab. (Cladonia), 166. 
Caracensis, Tayl. (Parmelia), 218. 
Carnosa, Scheer. (Parmelia), 256. 
Carpoloma, Del. (Sticta), 191, 192, 198. 
Carporrhizans, Tayl. (Parmelia), 214, 215. 
Cellulosum, Ach. (Nephromium), 135. 
Cenotea, Scheer. (Cladonia), 158. 
Centrifuga, Ach. (Parmelia), 232, 233, 234. 
Ceratina, Fr. (Usnea), 123. 
Ceratites, Fr. (Siphula), 142. 
Ceratophylla, Wallr. (Parmelia or Imbricaria), 221, 
225. 
Ceruchis, Ach. (Ramalina), 127, 131. 
Cervicornis, Scheer. (Cladonia), 154, 158, 159, 160. 
Chalazanum, Ach. (Collema), 274. 
Chalybcea, Scheer. (Lecanora), 262, 264. 
Chalybzeum, Duf. (Placodium), 262, 264. 
Cheileum, Ach. (Collema), 275. 
Chrysoleuca, Sm. (Squamaria), 259, 260. 
Chrysophthalma, DC. (Physcia), 239, 250, 252. 
Chrysophthalma, DC. (Parmelia), 252. 
Ciliare, Ach. (Platysma), 177, 180, 181, 182, 237. 
Ciliaris, DC. (Physcia), 239, 240, 241, 243, 247, 249, 
254, 259. 
Cinereo-glauca, Tayl. (Sticta), 191, 193. 
Cincinnata, Ach. (Parmelia), 226. 
Circinatum, Pers. (Placodium), 111, 262, 263, 268. 
Citrinum, Tayl. (Platysma), 180. 
Cladoniaria, Nyl. (Liecidea), 112, 163. 
Coccifera, Hook. (Cladonia or Cenomyce), 163. 
Cocciferus, Hook. (Lichen), 163. 
Cocées, Ach. (Lecidea), 255. 
Cocées, Ach. (Pyxine), 255. 
Collodes, Tay). (Dufourea), 170. 
Colpodes, Ach. (Parmelia), 220. 
Compressum, Ach. (Spherophoron), 132, 146, 147, 
148, 149, 150, 151. 
Concolor, Ram. (Squamaria), 259, 260. 
Confinis, Ag. (Lichina), 113, 268, 269, 
Confluens, Fr. (Physcia), 246. 
Conspersa, Ach. (Parmelia), 112, 113, 116, 163, 206, 
209, 210, 216, 219, 220, 231, 232, 233, 234, 261. 
Coralloides, Pers. (Spheerophoron), 146, 147, 448, 149, 
150, 151. 
Coriacea, Tayl. (Ricasolia), 202, 204. 
Corniculatum, Wallr. (Obryzum), 280. 
INDEX OF SPECIES. 
Cornucopioides, Fr. (Cladonia), 163, 164. 
Cornuta, Fr. (Cladonia), 157, 159, 163, 164. 
Corrosa, Ach. (Ricasolia), 201, 205. 
Corrugata, Ach. (Parmelia), 234, 235. 
Corrugatus, Sm. (Lichen), 234. 
Crassa, DC. (Squamaria) 259. 
Crenulata, Hook. (Ricasolia), 201, 202, 204. 
Cretaceum, Sm. (Leptogium), 278. 
Cribellata, Tayl. (Parmelia), 233. 
Crinita, Ach. (Parmelia), 213. 
Crispata, Ach. (Cladonia), 168. 
Crispum, Ach. (Collema), 273, 274, 275. 
Cristatum, Scheer. (Collema), 272, 273, 275. 
Crocata, Ach. (Sticta), 200. 
Crocea, Ach. (Cornicularia), 253. 
Crocea, Ach. (Solorina), 175. 
Cucullatum, Hoffm. (Platysma), 177, 178, 179. 
Oyclosetis, Ach. (Parmelia), 247. 
Cylindrica, L., Fr. (Umbilicaria), 182, 187, 188, 190. 
Damecornis, Ach. (Sticta), 161, 191, 192, 194, 195, 
196. 
Dameecornis, Ach. (Cladonia), 161. 
Deformis, Hoffm. (Cladonia), 163, 164. 
Degenerans, Flk. (Cladonia), 157, 163. 
Denticulata, Linds. (Parmelia), 112, 203, 206, 211, 
212, 213, 277. 
Denudatum, Flk. (Stereocaulon), 153. 
Depressa, Schrad. (Umbilicaria), 190. 
Deusta, Ach., Flk. (Umbilicaria), 185. 
D’Urvyillei, Del. (Sticta), 191, 200. 
Diadenata, Tayl. (Parmelia), 242. 
Diaphanum, Ach. (Leptogiwm), 278. 
Diatrypa, Ach. (Parmelia), 225. 
Dichotoma, Del. (Sticta), 194, 196. 
Digitata, Hoffm. (Cladonia), 163, 164. 
Digitata, Linds. (Parmelia), 212. 
Discolor, Ach. (Ricasolia), 204. 
Dissecta, Ach. (Ricasolia), 201, 202, 205. 
Domingensis, Mont. (Physcia), 242. 
Dubia, Sch. (Parmelia), 231. 
Echinata, Tayl. (Parmelia), 242. 
Eecmocyna, Ach, (Cenomyce), 158. 
Elegans, DC. (Placodium), 262, 266. 
Elegans, Ach. (Parmelia), 266. 
Encausta, Ach. (Parmelia), 112, 115, 206, 220, 224 
225, 236. 
Endivieefolia, Fr. (Cladonia), 161. 
Endochrysa, Del. (Sticta), 191, 192, 200. 
Enteromorpha, Ach. (Parmelia), 220, 223, 224. 
Epiblastematica, Wallr. (Spheria), 193, 234. 
Epigea, Ach. (Parmelia), 263. 
Epiphyllum, Leight. (Collema 2), 276. 
Ericetorum, Sm. (Lichen), 146. 
Erosa, Hoffm. (Umbilicaria), 182, 186, 187, 226. 
Erosa, Borr. (Parmelia), 246. 
Erratica, Linds. (Parmelia), 216, 218. 
Erythrocarpia, Fr. (Parmelia, Lecidea, or Blas- 
tenia), 265. 

