300 



INDEX 



Net-veined > 37 



Neutral flower 310 



Node 5° 



Nucleus 9 



Numerical plan 288 



Nut 87 



Obcordate 45 



Oblique 36 



Obovate 30 



Obsolete 295 



Obtuse ■ 41 



Oospore 367 



Opposite leaves 50 



Organ 8 



Organs of reproduction 151 



Organs of vegetation 151 



Orthotropous 130 



Osmose 227 



Oval 29 



Ovary 73i 285, 287 



Ovule 287 



Paleobotany i 



Palmate veining 38 



Panicle 270 



Papilionaceous 298 



Pappus 88 



Parallel veining 37 



Parapliyses 394 



Parasitic plants 184 



Parenchyma 213 



Parietal 103 



Pedicel 264 



Peduncle 75, -103, 264 



Peltate 34 



Pentamerous 296, 302 



Pepo 78 



Perennial 181 



Perfect flower 291 



Perfoliolate 24 



Perianth 282 



Pericarp 74 



Perigynous 297 



Persistent 32 



Personate 30S 



Petals 282 



Petiole 3I1 33 



Phanerogams 355 



Photosynthesis 24 



Phyllotaxy 50-S3 



Pileus 392 



Pinna 360 



Pinnate veining 38 



Pinnule 360 



Pistil ; . , 283, 28s 



Pistillate 310 



Pitcher plant 70 



Pith 191, 219 



Placenta 75, 103, 287 



Plicate 124, 254 



Plumule 118, 121 



Pollen 284 



Pollen grains 284 



Pollen sac 284 



Pollen tubes 325 



Pollination 286 



Polycotyledons 120 



Polymorphic 407 



Polymorphism 386, 407, 408 



Polypetalous 304 



Pome 74 



Prefloration 290 



Prefoliation 254 



Primary root 170 



Pronuba 334 



Protection 72, 335 



Prothallium 366 



Protoplasm 9, 213 



Pteridophytes 3S9 



Pubescent 36 



Puccinia 400 



Raceme 267 



Rachis 45, 264 



Radial roots 172 



Radial section 237 



Raphe 122, 131 



Ray flowers 307 



Receptacle 74, 75, ^°3> 282 



Red rust 399 



Region of growth 148, 153, 157 



Regular flower' 291 



Respiration 28 



Revolute 261, 392 



Rhizoids 372 



Rhizoma 189 



Ribs 39 



Ringent 308 



Rings of growth 221, 223, 224 



Root cap 150 



Root growth 148, 150, 153, 172 



Root hairs 149 



Root pressure 229 



Root pull 165 



Rootstock 188 



Rosette 55 



Rostelia 406 



Rotate 420 



Rudimentary organs 314 



Rugose 36 



Runcinate 53 



Runner 20B 



Sagittate 35 



Salver-shaped 421 



