228 



\ 



Oricellarii, 5 

 Orseille, 5, 85 

 Osmotic action, 44 



pALISADE cells, 47 

 Pannaria, 207 



Pannaria lanuginosa, 208 



Pannaria lurida, 208 



Pannariaceae, 197 



Paper, 5 



Paraphyses, 63 

 • Parasitism, 26, 31 

 \ Parmelia, 45, 132, 167 



Parmelia parietina, 17, 21 



Parmelia perforata, 89 

 ■J Parmelia perlata, 169 



Parmelia rudecta, 90 



Parmeliaceae, 159 



Patellariaceae, 98 



Peltigera, 11, 47, 209 



Peltigera aphthosa, 23, 41, 55, 56, 58, 83 



Peltigera canina, 10, 23, 210 



Perfumes, 5 



Persoon, C. H., 11 



Pertusaria, 5, 186, 218 



Pertusaria communis, 33, 77, 187 



Petiver, J., 7 



Peziza confluens, 77 



Pezizaceae, 98 



Phacidiaceae, 98 



Phthisis, 10 



Phylloclades, 68 



Physarum mucoroides, 33 



Physcia, 11, 156 



Physcia speciosa, 158 



Physcia stellaris, 61, 92 



Physciaceae, 151 



Physiology, 26, 40 



Physodin, 22 



Picroerythrin, 22 



Pilophoron, 122 



Pilophoron cereolus, 123 



Pilophoron robustus, 55 



Placodium, 8, 11, 152, 154, 218 



Placodium elegans, 155 



Plagiotropism, 72 



Platysma, 8 



Pleurococcus, 21, 69 



Pleurococcus punctiformis, 39 



Pleurococcus vulgaris, 24, 100 



Plinius, 3, 5 



Plukenet, L., 7 



Podetia, 82, 105, 119, 126 



Pollen, 12 



Pollen dust, 9 



Polychidium, 204 



Polychidium muscicolum, 205 



Polycoccus punctiformis, ioi, 124 



Polyphylogeny, 29, 96 



Polyps, 14 



Poor trash, 9 



Porcher, P., 27 



Pores, 52, 53 



Porta, J. B., 4 



Priestley, substance of, 16, 17 



Primary cortex, 53 



Primary thallus, ng, 122, 125 



Promycelium, 71 



Propagation, 87 



by soredia, 92 



vegetative, 93 

 Propagative organs, 4, 62, 67 

 Propagines, 13 

 Proper exciple, 66 

 Protonema, of moss, 34 

 Protothallus, 71 

 Pseudocyphellae, 54 

 Pseudolichenes, 39, 217 

 Psora, 47, 133, 140 

 Psora Russellii, 141 

 Psoroma, 205 

 Psoroma hypnorum, 206 

 Pulling tension, 6r 

 Pulveraria, 218 

 Pulvis antilyssus, 10 

 Pulvis Cyprius, 5 

 Purgative, 23 

 Pycnidia, 21, 32 

 Pyrenothea, 218 

 Pyrenomycetes, 99 

 Pyrenula, 15, 180 

 Pyrenula nitida, 181 

 Pyxidium, 8 

 Pyxine, 144, 155 

 Pyxine picta, 156 



Q 



UININE, 17 



, -pAMALINA, 172 

 *i Ramalina calicaris, 173 K i 



Range, of lichens, 219 



