Nitella pseudotlabellata—Oligotrichum hereynicum 
Nitella pseudoflabellata 98 
— Roxburghii 98 
— Sonderi 166 
— spanioclema 97 
— Wattii Groves* 98 
Nitellopsis 98 
— obtusa 98, 152 
Nitidulidae 428 
Nitophylleae 111, 234, 237, 239, 240, 
242, 246, 247 
Nitophyllum 108, 112 
— affıne Harv. 239 
— Andersonianum 239 
— condensatum Skottsb. 247 
— endiviaefolium J. Ag. 235 
—  lJaceratum 306 
— Lenormandi 117 
— lobuliferum J. Ag. 235 
—- monanthos 234 
— Sandrianum Zanard. 236 
Nitzschia 67, 68. — N. A. 199 
— acuminata 41 
— (losterium 39 
— — f. minutissima 39, 72 
— frustulum 152 
— granulata Grun. var. hyalina 
Amosse* 155 
— hungarica 122 
— putrida 67 
Noetiluca 59, 64. — N. A. 189 
— miliaris 59 
Noctilueidae 64, 189 
Norantea goyazensis 438 
Nostoc 26, 28, 46, 47, 48, 49, 53, 66, 
126, 154, 344. —N.A, 173 
—- earneum 46 
— commune 41, 46, 53 
— insulare 47 
— Linckia 46 
—- muscorum 119 
— pruniforme Ag. 50, 204, 312 
— punctiforme (Kg.) Hariot 28, 49, 
143 
— — var. populorum Geitler* 46 
— Zetterstedtii J. E. Aresch. 50, 
264 
Notheia anomala 106 
Nothofagus 316 
Notosolenus N. A. 180 
Nueularia Perrini 482 
803 
Nuytsia floribunda 453 
Nyctaginaceae 481 
Nymphaeaceae 385 
Ocellularia N. A. 15 
— = sect. Ascidium: 15 
Ochromonas 55. — N. A. 180 
—. erenata 56 
— granularis 55 
—  vallesiana Chodat* 55 
Ocimum gratissimum 316 
ı — viride 316 
Octoblepharum albidum 695 
Octodiceras Julianum 682 
7 Z57n10V00,,Ohioense 
Emig* 697 
Octokepos 698 
Odina Wodieri 323 
Odontadenia 438 
Odontoglossum 600 
Odontophora 234 
Odontoschisma Macounii 657 
Odyendea 332 
Oedogoniales 30, 151 
Oedogonium 25, 35, 39, 80, 94, 125, 
128, 132, 181, Bla, — Ne: 
DIET, 
— , Braunii 25 
ı — eryptoporum 25 
| — exocostatum 94 
— paucecostatum Trans. var. raus 
Tiffany* 94 
— pluviale 629 
—. trieieum Woronich.* 150 
Oenone 352 
Oenothera 376 
—. biennis 282, 283, 329 
— franeiscana sulfurea 281 
— gigantea 285 
— glauca 294 
— Hookeri 294 
— Lamarckiana 278 
— Zur atam2718 
— — semigigas 297 
—. rosea 294 
ı Oicomonas tetraspora Svarc.* 61 
Oidium lupuli 549 
Oligotrichum 659 
— hereynicum 659 
