INDEX 



395 



Physiologically female condition 



159, 160, 168 



Physiology of the flower 154 

 Pimpernel 18, 77 

 Pine-forests 157 

 Pinellia 112 

 Pines 27, 43, 56, 83, 93, 134, 136, 



154-157, 170 

 Pinks 72, 74 

 Pinus 88 

 P. Cembra 189 

 P. Coulteri 188 

 P. excelsa 190 

 P. Lambertiana 190 

 P. Laricio 185, 186 

 P. montana 183 

 P, monticola 190 

 P. Pinaster 187 

 P. Pinea 187 

 P. Strobus 189, 190 

 P. sylvestris 183, 184 

 P. Tceda 188 

 Piper 67, 115 

 Pistil 43, 58, 65, 101, 103, 104, 



108, 129, 130-133, 139, 144, 



145, 155, 161, 163 

 Pistillate 26 

 Pistillate flowers 105, 110, 111, 



155, 160 



Place of origin of the ovule 115 

 Placenta 51, 101, 103, 104, 107, 



114, 169, 171, 185 

 Placental scales 136, 137, 175, 



181, 189 

 Placentation 101, 103, 104, 109, 



115 



Placentation axile 108, 109 

 Placentation parietal 108 

 Plan of arrangement 126 

 Plan of inflorescence 288 

 Plan-diagrams 132, 237, 245, 248, 



251, 254, 265, 280, 292 

 Plan-diagrams of buds 122 

 Plane 36, 71, 93, 107, 110, 126, 



238, 263, 273 



Planes of symmetry 123, 124, 126 

 Plantago 25, 131, 159, 163 

 Plastic mechanism 131 

 Platanus occidentalis 273, 274 

 P. orientalis 273 

 Plum 79, 102, 103, 108, 145, 147, 



164 



Pod 102, 149, 305 



Pole 118 



Pollen 3, 4, 83, 87-89, 104, 157, 



159, 162, 163, 166, 167, 178- 



181, 191 



Pollen and spores 99 

 Pollen carried from one flower to 



another 155 

 Pollen -chambers 84 

 Pollen-dusted head 167 

 Pollen-grain a spore 96, 98 

 Pollen-grains 84, 87-89, 91, 93-99, 



121, 154, 158, 169, 184 

 Pollen incapable of germination 



160 



Pollen-laden 107 

 Pollen-laden anthers 167 

 Pollen-laden wind 156 

 Pollen mother-cells 89, 90, 92 

 Pollen of gymnosperms 89 

 Pollen-sacs 82, 84, 89-92, 135-137, 



154, 176, 185, 191 

 Pollen-tubes 88, 89, 91, 92, 94, 96, 



97, 99, 112, 118, 154, 162, 169, 



170 

 Pollen -tubes resemble parasitic 



fungi 170 

 Pollination 87 



Pollination by insects 107, 158 

 Pollination of stigma 166 

 Pollinia 82, 88, 89, 91 

 Polyadelphous 87 

 Polyandrous 86 

 Polycardla 38 



Polycarpellary 101, 103, 107 

 Polychasium 30, 31, 34, 37, 39 

 Polygala 86 

 Polygamous flowers 131, 155, 160, 



269 



Polygamy 122, 154, 264, 275, 341 

 Polygoiiacese 68, 113, 163 

 Polygonum 115 

 P. Bistorta 160 

 Polymorphic flowers 122 

 Polymorphic grains 93 

 Polymorphy 130 

 Polypetalous corolla 54, 62-64, 72, 



78, 81, 282 



Polypetalous flowers 67, 144 

 Polysepalous calyx 54, 63, 72 

 Polysepalous flowers 67 

 Polysepaly 63, 72 



