276 



Matricaria 110,261 



Medeola 142 



Medicago 92, 208 



Melampyrum 1 19 



Melampsora 208 



Melanconis 229 



Melanconium .202 



Melanospora 226 



Melica 150, 256, 268 



Mehlotus 92 



Melissa 121 



Melogramma 227 



Melosira 244 



Menispermum 79, 198 



Mentha 120 



Menyanthes 126, 209 



Meridiem 250 



Merismopedia 243 



Mertensia 123 



Merulius 182, 186 



Microstylis 72, 141 



Microsphseria 215 



Microthyrium 235 



Milium 152 



Mimulus 118 



Mitchella 104 



Mitella ..." 97, 205 



Mitrula 191, 216, 217 



Mnium 161 



Mollugo 87, 258, 267 



Monarda 121, 262 



Moneses 71, 115 



Monotospora 211 



Monotropa 116 



Montelia (Acnida) 263 



Morchella * 216 



Moms 132 



Mucor 214 



Muhlenbergia 149 



Mulgedium (Lactuca) 113 



Mycoporum 173 



Myosotis 123, 268 



Myriangium 171 



Myrica 133 



Myriophyllum 98, 260 



Myxosporium 203 



Nabalus (Prenanthes). ... 112, 200, 205 



Nsematelia 192 



Naias 138, 257 



Nardosmia (Petasites) 105 



Nasturtium ' 81 



Navicula 248 



Neckera 163 



Nectria 225, 226 



Neillia 94 



Nelumbium -. . ..70, 80, 257 



Nemopanthes 116, 212, 223 



Nepeta 121 



Nephroma 168 



Nessea 99 



Nicandra 125 



Nicotiana 125 



Nigella 78 



Nitella 235 



Nitschkia 231 



Nitzschia 247 



Nitzschiella 247 



Nodularia ..190, 220 



Nostoc 242 



Nummularia 227 



Nuphar 80 



Nymphaea So 



Nyssa 102, 234 



Oakesia 143 



Odontia 187 



Odontidium 246 



CEdogonium 236, 237 



CEnothera 99, 201 



Onobrychis 93 



Onoclea 155, 200 



Onopordon ill 



Onosmodium 122, 234 



Onygena 214 



Opegrapha 172 



Ophioglossum 153 



Orchis 139 



Origanum 257, 262 



Orthotrichum 159 



Oryzopsis 150 



Oscillaria 242 



Osmorrhiza - 101, 205 



Osmunda 155, 228 



Ostrya 133, 235 



Ovularia 212 



Oxalis. 89, 215 



Palmella 239 



Palmoglcea 239 



Panicum 152, 266, 268 



Pannaria 169 



Panus 177, 181 



Papaver 80 



Pardanthus 142 



Parmelia 167, 269 



Parnassia 71, 97 



Pastinaca 100 



Patellaria 219, 220 



Paxillus fSo 



Peckia 197 



Pediastrum ... .239 



Pedicularis 119, 206 



Pellaea 154 



Pellia 165 



Peltandra 137, 207 



Peltigera 168, 210 



Penthorum 98 



Pentstemon -72, 118 



Perichaena 196 



Periconia 211, 269 



Peronospora. 212 



Pertusaria 170 



