814 



INDEX TO STRUCTURAL AND PHYSIOLOGICAL BOTANY. 



Offset, 105 

 Omphalodium, 326 

 Oophoridia, 366 

 Oospore, 381 

 Oosporangia, 366 

 Operculate, 222, 255 

 Operculum, 368 

 Opposite leaves, 134 

 Orbicular, 161 

 Organic constituents, 791 

 — products, 755 

 Organisable matter, 729 

 Organography, 1, 5 

 Organs of nutrition, 12, 



63 

 reproduction, 12, 



179 



vegetation, 12, 63 



Origin of stomata, 742 

 Orthotropus, 324 

 Osmose, 737 

 Ostiole, 376 

 Oval, 159 

 Ovary, 209, 260 

 Ovate, 159 

 Ovulary-spore, 364 

 Ovule, 209, 318, 364 



Palfeontological botany, 2 

 Palate, 227 

 Palene. 184, 185 

 Palmate, 165, 165 

 Palmated root, 123 

 Palmately-cleft, 155 



— -veined, 145 

 Palmatifid, 155 

 Palmatipartite, 155 

 Palmatisected, 155 

 Panduriform, 155 

 Panicle, 195 

 Panicled cyme, 202 

 Papillae, 58 

 Papilionaceous, 225 

 Pappose, 219 

 Pappus, 219 

 Papulfe, 58 



Parallel formation of 



leave?, 762 

 Parallel-veined. 145 

 Paraphyses, 367, 379 

 Parasites, 119 

 Parenchyma, 35 

 — , complete, 36 

 — , incomplete, 36 

 — , functions of, 739 

 Parenchymatous cells, 16, 



35 



— system, 46, 64, 70 

 Parietal cell-formation, 



732 



— placenta, 276 

 Pari-pinnate, 163 



Parthenogenesis, 765 

 Partial involucre, 182 



— petiole, 150, 167 

 Partite, 153 

 Partitions, 153 

 Patent, 102 

 Patulous, 215, 224 

 Pectinate, 154 

 Pedate, 156 

 Pedicel, 185 

 Peduncle, 185 



— , duration of, 187 

 Peloria, 230 

 Peltate hairs, 55 



— leaves, 133 

 Pendulous, 102 

 Pentastichous, 137 

 Pepo, 314 

 Perennial leaves, 127 



— roots, 120 

 Perfoliate, 133 

 Perianth, 208, 215 

 Pericarp, 292 

 Pericha3tial, 366 

 Pericladium, 173 

 Periderm, 80 

 Peridium, 379 

 Perigone, 208, 371 

 Perigynous, 248 

 Peripherical, 342 

 Perisperm, 334 

 Perispore, 382 

 Peristomium, 368 

 Persistent, 127 

 Personate, 227 

 Petaloid, 219 

 Petals, 208, 222 

 Petiolar stipiiles, 171 

 Petiolate, 133 

 Petiole, 128, 166 

 Petiolule, 150, 167 

 Phanerogamous, 10 

 Phsenogamous, 10 

 Phragmata, 271 

 Phyllaries, 182 

 Phyllocj-anin, 28, 758 

 Phyllode, 175 

 Phylloid peduncle, 187 

 Phylloxantheine, 758 

 Phylloxanthine, 28, 758 

 Physiological botany, 1 

 Physiology, 728 



— of the root, 743 

 Phytons, 96 

 Phytozoon, 367, 370 

 Pileorhiza, 113, 116 

 Pileus, 378 

 Pilose, 219' 

 Pinnaj, 162 

 Pinnate, 162 



Pinna telv-veined, 145 

 Pinnatifid, 153 

 Pinnatipartite, 153 



Pinnatisected, 153 

 Pinnules. 164 

 Pistil, 209, 259 

 Pistillidia, 366, 370 



— sporangia, 364 

 Pitchei-s, 176 

 Pitcher-shaped, 227 

 Pith, 69 

 Pitted cellular tissue, 37 



— cells, 20 



— vessels, 40 

 Placenta, 260, 275 

 Placentation, 275 'I 

 Placentiform root, 125 '' 

 Plaited, 141 



Plicate, 141 

 Plumose, 219 

 Plumule, 11, 335 

 Pod, 304 

 Podetium, 375 

 Podosperm, 318 

 Pollen-sporangia, 366 



— spores, 364 



— tube, 257 

 Pollinia, 253 

 PolUnaria, 379 

 Polyadelphous, 249 

 Polycotyledonous, 339 

 Polyembryonic, 337 

 Polygamous, 233 

 Polypetalous, 224 

 Polyphyllous, 215 

 Polysepalous, 215 

 Polystemonous, 246 

 Pome, 315 



Pore, 376 

 Porous cells, 20 

 Prtefloration, 143, 210 

 PrajfoUation. 95, 141 

 Prsmorse, 157 



— root, 126 

 Prepotent, 780 

 Preserving seeds, 785 

 Prickles, 56 

 Primary root, 112 

 Primine, 323 

 Primordial leaves, 733 



— utricle, 25 

 Procumbent, 100 

 Pro -embryo, 359 

 Proliferous, 97 

 Prolification, 347 

 Prosenchyma, 38 



— , functions of, 739 

 Proseuchymatous cells, 16 

 Prostrate, 100 

 Prothallium, 359, 361, 369 

 Prothallus, 359 

 Protonema, 369, 765 

 Protoplasm, 25 

 Pseudo-bulb, 100 

 Pseudo-embryo, 770 

 Punctated cells, 22 



