INDEX 
Pinnati-fid, 53 ; -partite, 53 ; -sect, 
.53 
Pinweed, Lechea 
Pipe-wort, Elaiine 
Pipul, Ficus religiosa L. 
Pisang, Musa 
Pistachio nut, Pistacia 
Pistil, 82 
Pistillate flowers, 68 
Piston-mechanism, 97, Lotus 
Pitch, Canada, Tsuga ; -pine, 
Pinus 
Pitcher-plant, 178, Cephalotus , 
Darlingtonia , Dischidia , ’ Heli- 
amphora, Nepenthes , Sarracenia 
Pith-tree, Herminiera 
Plac., placenta 
Placentation, 79, 82, 84, 123 
Plagiotropic, 36 
Plane tree, Platanus 
Plant associations, 179, 185 
Plant dispersion, 109 seq. 
Plant-formations, 179 
Plant society, 179 
Plantain, Musa, Plantago ; water-, 
A lisma 
Plants and insects, 115, 146, and 
see under Flowers 
Plants, insectivorous, 177 
Plants, ornamental, 207 
Platy- (Gr. pref.), broad 
Pleio-, pleo- (Gr. pref.), several 
Pleiochasial cyme, 63 
Pleuranthous, Orchidaceae 
Pleuro- (Gr. pref.), side- 
Pleurorhizal, Crucifer ae 
Plicate, 53 
Pit., Plant 
Plum, Prunus ; coco-, Chrysoba- 
lanus ; date-, Diospyros ; hog-, 
Spondias ; Madagascar-, Fla- 
conrtia', Sapodilla-, Achras ; 
tamarind-, Dialium 
Plum., Plunder 
Plumose, feathered 
Plumule, 36, 105, 1 12 
Pltiss, 156 
Pneumatophores, 161 
Po (flower class), 88 
Podo- (Gr. pref.), stalk - 
Poir., Poiret 
657 
Poison, 203, Abuta, Acokanthera , 
Aconitum , Toxicodendron ; 
bikh-, Aconitum ; curare-, 
Strychnos\ -ivy, Rhus ; wourali-, 
Strychnos 
Poisoning plants, 12, 14 
Poke weed, Phytolacca 
Polish v/heat, Triticum 
Pollards, Salix ; flora of, 174 
Pollen, 79, 61, 86; as food, 61, 
88 ; -cup, 97, Goodeniaceae ; 
-grains, 56, 77 ; insects collect- 
ing, 88 ; plants providing, 206 ; 
prepotency of, 95 ; protection 
of, 73> 86; -sacs, 55, 77; -tube, 
81 
Pollinating agents, 58 
Pollination, 58, 56, 85, 86, 87, 
162 ; legitimate and illegitimate, 
95 . 
Pollinia, 79, Orchidaceae 
Poly- (Gr. pref.), many 
Polyadelphous, 78 
Polyandrous, 70, 78 
Polycarp, Poly car pon 
Polycarpellary, with many cpls., 
82 
Polycarpic, fruiting several times 
Polyembryony, formation of > 1 
embryo in ovule 
Polygamy, 68 
Polymorphism, 29 ; of fir., 74 
Polynes., Polynesia 
Polypet., Polypetalae 
Polypetalous, 70, 76 
Polyphyletic, 30, 146 
Polyphyllous, 70, 76 
Polyphyly, 122 
Polypody, Polypodium 
Polysepalous, 70, 76 
Polystely, Gunnera 
Pome, 108, Pyrus 
Pomegranate, Punica 
Pomelo, Citrus 
Pomiform, apple-like 
Pompion, pumpkin 
Pond, 8, 6 
Pond-weed, Potamogeton ; Cape-, 
Aponogeton 
Poonac, crushed seeds, after oil 
extraction 
W. 
42 
