INDEX 



219 



Nostocotheca, 94 

 Nothopatella, 124 

 Nothostroma, 50 

 Nowakowskia, 10 

 Nowakowskiella, 11 

 Nummularia, 30 

 Nyctalis, in 



Obelidium, 11 

 Ocellaria, 63 

 Ocellis, 80 

 Ocellularia, 80 

 Ochrolechia, 79 

 Octaviania, 120 

 Odontia, 108 

 Odontotrema, 65 

 Odontura, 65 

 Oedemium, 148 

 Oedocephalum, 139 

 Oedomyces, 101 

 Ohleria, 35 

 Ohleriella, 35 

 Oidiopsis, 139 

 Oidium, 139 

 Oleina, 93 

 Ollula, 130 

 Olpidiae, 9 

 Olpidiopsis, 10 

 Olpidium, 10 

 Olpitrichum, 141 

 Ombrophila, 67 

 Omphalia, 111 

 Oncopodium, 153 

 Oncospora, 134 

 Onygena, 96 

 Onygenaceae, 96 

 Oochytriae, 11 

 Oomyces, 47 

 Oospora, 139 

 Opegrapha, 59 

 Opegraphella, 59 

 Ophiobolus, 37 

 Ophioceras, 38 

 Ophiochaete, 38 

 Ophiocladium, 138 

 Ophiodictyum, 36 

 Ophiodothis, 50 



Ophiogloea, 68 

 Ophiognomonia, 37 

 Ophiomassaria, 37 

 Ophiomeliola, 25 

 Ophionectria, 47 

 Ophiopeltis, 52 

 Ophiotrichum, 152 

 Orbicula, 23 

 Orbilia, 67 

 Oropogon, 82 

 Orphniospora, 76 

 Oscarbrefeldia, 94 

 Ostreium, 57 

 Ostropa, 57, 65 

 Ostropae, 65 

 Otidea, 88 

 Otidella, 88 

 Otthia, 32 

 Otthiella, 31 

 Oudemansiella, 112 

 Ovularia, 142 

 Ovulariopsis, 142 

 Oxydothis, 50 

 Ozonium, 164 



Pacbybasium, 143 

 Pachyphiale, 80 

 Pachyphloeus, 97 

 Pactilia, 158 

 Paepalopsis, 139 

 Pampolysporium, 23 

 Panaeolus, 114 

 Pannaria, 83 

 Pannariae, 83 

 Panus, 112 

 Papulospora, 140 

 Paranectria, 46 

 Paraspora, 145 

 Parathalle, 70 

 Paratheliae, 41 

 Parathelium, 41 

 Parmelia, 81 

 Parmeliaceae, 78 

 Parmeliae, 81 

 Parmeliella, 83 

 Parmeliopsis, 81 

 Parmenteria, 42 



Parmularia, 55 

 Parmulariella, 55 

 Parodiella, 24, 32 

 Paryphedria, 67 

 Passalora, 151 

 Passeriniella, 34 

 Passerinula, 45 

 Patellaria, 70 

 Patellariaceae, 68 

 Patellea, 69 

 Patellina, 130, 158 

 Patellinae, 130 

 Patinella, 69 

 Patouillardia, 159 

 Patouillardiella, 161 

 Paulia, 73 

 Paurocotylis, 119 

 Paxillus, 114 

 Pazschkea, 85 

 Pazschkella, 125 

 Peccania, 73 

 Peckia, 123 

 Peckiella, 40 

 Pedilospora, 146 

 Pedisordaria, 29 

 Pellicularia, 142 

 Pellioniella, 125 

 Pelodiscus, 90 

 Peloronectria, 46 

 Peltidium, 91 

 Peltigera, 75 

 Peltigeromyces, 88 

 Peltophora, 75 

 Peltophoraceae, 75 

 Peltophorae, 75 

 Peltophoromyces, 88 

 Peltosphaeria, 36 

 Peltostroma, 131 

 Pemphidium, 51 

 Penicilliopsis, 44 

 Penicillium, 141 

 Peniophora, 107 

 Pentagenella, 60 

 Penzigia, 29 

 Perforaria, 79 

 Peribotryum, 156 

 Pericladium, 99 

 Periconia, 147 



