396 



INDEX 



Pome 322 



Pontederia 131 



Poplar 25-27, 66, 68, 70, 83, 101, 



104, 105, 108, 110, 134, 138-140, 



156, 157 

 Poppy 17, 31, 42, 58-60, 63, 66, 



74, 77, 159, 163 

 Populus 67, 139, 233 

 P. alba 225 



P. Canademis 228, 229 

 P. nigra 226, 228, 229 

 P. tremula 138, 139, 226, 227 

 Pores 151, 191, 334, 337, 341, 



342 



Porogamic 171 

 Porous dehiscence 82, 86 

 Portugal Laurel 20, 108, 313 

 Position 128 



Position of the bracts 13, 15 

 Positions as regards axis 112 

 Posterior petal 149 

 Posterior stamen 150 

 Potentilla 58, 65, 74, 77 

 Pressure 39 

 Prevention of self-pollination 154, 



155 



Prickles 315, 317 

 Prickly scrambler 315 

 Primary axis 11, 12, 31, 32, 34 

 Primary flower 132 

 Primary functions 154 

 Primitive condition 70 

 Primrose 62, 63 

 Primula 123, 127, 131, 164 

 P. acaulis 124 

 Primulaceas 114, 115 

 Privet 36, 37, 71, 72, 78, 80, 108, 



110, 158, 340, 341 

 Production of embryo-sac 154 

 Production of pollen 154 

 Proliferous cone 192 

 Proliferous spikes 182 

 Propagation 3 

 Prostrate shoots 317 

 Protandry 154, 159 

 Protection of pollen and honey 



164 



Protection of pollen from rain 162 

 Proterogynous flowers 159, 167, 



252, 255, 274 

 Proterogyny 154, 159 

 Protoplasm 97-99, 116, 120 



Protuberances 51, 52, 116 



Pruinose 178, 183, 189 



Primus 72, 102, 110, 145-148, 158, 



310 



P. Avium 22, 94 

 P. Cerasus 311, 312 

 P. domestica 310 

 P. insititia 310 

 P. Laurocerasus 20, 313 

 P. Lusitanica 313 

 P. Mahaleb 20 

 P. Padus 20, 313, 314 

 P. spinosa 269, 310, 311 

 Pseud-axis 13, 32 

 Pseudo - hermaphrodite female 



flowers 161 

 Pseudo-hermaphrodite flowers 154, 



158 

 Pseudo-hermaphrodite male flowers 



160, 161 



Pseudo-hermaphroditism 160, 161 

 Pseudotsuga 181 

 Pseudo-whorls 183, 187, 189 

 Pulmonaria 131 

 Pungent leaves 178 

 Punica 115 



Pyrus 72, 109, 111, 145-148, 158 

 P. Aria 37, 53, 324, 326 

 P. Aucu2)aria 37, 327, 328 

 P. communis 322, 323 

 P. Mains 323 

 P. Sorbus 37, 328 

 P. torminalis 37, 324, 325 



Quantities of pollen '156 



Quercus 255 



Q. Cerris 261, 262 



Q. coccinea 261 



Q. Ilex 260, 263 



Q. palustris 259 



Q. pedunculata 256, 257 



Q. pubescens 259 



Q. Robur 256-259 



Q. rubra 260, 261 



Q. sessiliftora 256, 258 



Q. Suber 263 



Quincuncial aestivation 147 



Eaceme 8, 10, 11, 13, 14, 18, 19, 

 20, 22, 25, 27, 28, 30-32, 36-39, 

 264, 295 



Raceme of racemes 28, 29 



