INDEX 



4^5 



Nardia scalaris 350 

 Naucoria badipes 45 



camerina 45 



vernalis 45 

 Navicula apis 210 



cjprinus 209 



elliptica 209 



legumen 210 



major 209 



pupula 210 



radiosa 209 



silicula 209 

 Neckera menziesii 291 



pennata 291 

 Nectria episphaeria 28 



sanguinea 15, 28 

 Nemastoma calif ornica (204) 

 Nephrodium fragrans (383) 



fragrans aquilonaris (384) 



oreopteris (384) 



spinulosum intermedium (385) 

 Nephroma 118 



arcticum 122 



expallidum 122 



laetevirens 122 



laevigatum 121, 123, 129 

 parile 122 



polaris (122) 



tomentosum 122 

 Nephromium parile (122) 

 Nereocystis giganteus 157 



lutkeanus (195) 



priapus 6, 159, 181, 195, 203, 242, 



244, pi. xxv, xxvi 

 Nidularia Candida 41 

 Nitella acuminata subglomerata 180 



opaca 1 80 

 Nitophyllum fryeanum 201 



latissimum 201 



ruthenicum 159, 201 

 Nitschia angularis 210 



closterium 210 



diadema 210 



sigmoidea 210 



vermicularis 210 

 Nolanea juncea 46 

 Nolaviea (46) 



Normandina laetevirens (122) 

 Nostoc commune 161 



Nostoc sphaeroides 162 



Odonthalia aleutica 157, 159, 202 



kamtschatica 159, 202 

 CEdipodium griffithsianum 252 

 CEdogonium concatenatum 176 

 Oligotrichum aligerum 287 



hercynicum latifolium (287) 



integrifolium 287, 306 

 Omphalia campanella 45, 47 



gracillima 48 



montana 47 



pseudo-androsacea 48 



pyxidata hepatica 48 



semivestipes 47 



sphagnophila 47 



umbellifera 47 

 Oncophora suecica 256 

 Oocystis solitaria crassa 173 

 Opegrapha 85 



varia 75 

 Ophioglossum 4 



alaskanum 376 



vulgatum (376) 



alaskanum (376) 

 Oreoweisia serrulata 255 

 Orthothecium chryseum 292 



intricatum 292, 306 

 Orthotrichum anomalum (271) 



arcticum 270, 306 



cribrosum 271 



fenestratum 270, 314, pi. xxxm, f . 2 



pulchellum 271 



speciosum 271 

 Oscillatoria amoena 161 

 Ovularia bulbigera 17 



sommeri 17 



trientalis (17, 35) 



Pallavicinia blyttii 347 



hibernica 345 



lyellii 347 



Paludella squarrosa 275 

 Pannaria brunnea 116 



hypnorum 116 



lanuginosa 116 



lepidiota coralliphora 116 



nigra 117 

 Pannularia nigra (117) 



