374 



PLANT-LIFE 



Naiadeae, 195 

 Naias, 195 



flexilis, 195 



marina, 195 

 Narcissus, 299 

 Naviculce, 31 

 Nectar, 315 

 Nectary, 174, 315 

 Neottia Nidus-avis, 292 

 Nepenthes destillatoria, 286 

 Nettles, 305 



stinging hairs of, 343 

 Neuropteris, 230 

 Nile Lily, 196 



Nomenclature of plants, 351 

 Nostoc, 128 



Linckii, 25 

 Notched-Wrack, 75, 76 

 Nucellus, 176 

 Nucleus, the, 6-7 



Oak, Common, 211 



Cork, 211 



gall on, 350 

 Oaks, 210, 283, 304, 346 

 Oats, 199 

 GMogoniaceae, 40 

 (Edoqonium, 43, 44, 57 



ciliatum, 44 

 (Enothera biennis, 313 

 Oils, ethereal, 273, 337 

 Old Man's Beard, 118 

 Ononis, 345 

 Oogonium, 46, 67, 104 

 Oomycetes, 100, 106 

 Operculum, 136 

 Ophioglossacese, 155 

 Ophioglossum vulgatum, 155 

 Opium Poppy, 337 

 Opuntia, 263 

 Orchids, 194, 202, 266, 284 



fertilization of, 320 



seeds of, 329 

 Orchil, 118 

 Orchis, Bird's-nest, 292 



Butterfly, 312 



Coral-root, 292 



Early Purple, 321 

 Orchis mascula, 321 

 Ornithophyly, 322 

 Orobanche, 294 

 Oryza sativa, 199 

 Osier, 210 



Osmosis, 269, 286 

 Osrnundaceae, 155, 229 

 Osmunda regalis, 155, 229 

 Ovules, 172, 177, 184 

 Ovum, 185 

 Oxalis acetosella, 327 



Palaeozoic Era, 225 

 Palea, 200 

 Palms, 298, 305 

 Pandorina, 59, 63 

 Papaver, 213 

 Papaveraceae, 213 

 Pappus, 217, 329 

 Papyrus, 201 

 Papyrus antiquorum, 201 

 Paraphyses, 84, 111, 116, 135 

 Parasites, 13, 285 

 Parasitism, 100, 293 



partial, 293 

 Parnassia palustris, 319 

 Parsley, 213 



Wild, 347 

 Parsnip, 213, 258 

 Parthenogenesis, 43 

 Passi flora, 281 

 Passion Flower, 281 

 Pea and Bean Tribe, 213 

 Peas, 281, 329 

 Peat, 138 

 Pedicel, 173 

 Pedicularis, 293 

 Pellia, 122 



epiphylla, 129-130 

 Pelvetia canaliculata, 73, 82-85 

 Pepper-Grass, 156 

 Perianth, 194 

 Perichaetium, 126 

 Peridineae, 76 

 Periods, Geological: 



Archaean, 224 



Cambrian, 225 



Carboniferous, 225, 226, 228, 230, 

 244 



Cretaceous, 229, 244, 245 



Devonian, 225, 226 



Jurassic, 229, 245 



Ordovician, 225 



Permian, 225, 228, 230, 244 



Silurian, 225, 227 



Triassic, 229, 245 

 Peristome, 137 

 Periwinkle, Lesser, 280 



