i;6 



INDEX. 



Ox-lip, 125. 



Oxygen, 3, 5, 10, n, 19, 7 1 



Oyster, 4. 



P. 



143, 160. 



Pacific, 141. 



Pyeony, 137, 155. 



Palate, 90. 



Pale, 117. 



Palm, 21, 56. 



Palmate, 59. 60. 



Paha itely ; p. cleft, 59 ; p. divided, 59 ; p. 



lobed, 59 ; p. parted, 59. 

 Panicle, 79, 80, 100, 117. 

 Pansy, 63, 75, 76, 88, 96, 98, 104, 121, 127, 



150, 151. 

 Papaveraceae, 155. 

 Papilla, 107. 

 Pappus, 141, 157. 

 Parallel-veined, 56, 152. 

 Parasite, 3, 64, 71. 



Parenchyma, 14, 19, 31, 36, 41, 42, 67, 98, 

 135 ; palisade p., 65, 66, 68; spongy p., 

 66, 67, 91. 

 Parietal, 105, 137, 154, 155 ; p. layer, 32. 

 Parsley, 156. 



Parsnip, 79, 106, 119, 142, 156. 

 Parted, 59. 



Partial; p. involucre, 79; p. peduncle, 76. 

 Passi flora (.see Passion-flower). 

 Passion-flower, 27, 45. 

 Patchouli, 62. 

 Path-pointer, 122. 

 Pea, 61, 82, 88, 95, 100, 101, 102, 106, 114, 



127, 135, i37> I 43. *5°> !56- 

 Peach, 113, 139, 156. 

 Pea-flower family (see Leguminoseas). 

 Pear, 136, 156. 

 Pedicel, 76, 78, 117, 147. 

 Peduncle, 74, 76, 85, 102, 112, 115, 140, 142, 



147. 

 Peel, 139. 

 Peeling ; of potatoes, 26 ; of twigs, 40. 



Pelargonium, 28, 85, 156. 



Peltate, 58. 



Pendent, 99, 123, 147. 



Pendulous, 77, 106, 113, 116, 123. 



Penknife, 74, 145. 



Pentastemon, 94, 97, 157. 



Pepper-castor, 31. 



Perennials, 14, 23, 41, 42, 48, 146, 148, 149. 



Perfoliate, 58. 



Perianth, 74, 81, 83-91, 92, 99, 113, 115, 

 116, 117, 118, 119, 126, 140, 142. 



Pericarp, 136, 137, 139, I 4°- 



Perigynous, 81, 84, 85, 87, 95, ior, 113, 136, 

 i59» 151. i53» T 56- 



Perisperm, 131, 133. 



Periwinkle, 54. 



Permanent slides, 160. 



Persistent, 86. 



Personate, 90, 113. 



Petal, 74, 75, 76, 82, 83, 85, 86-91, 93, 94, 95, 

 103, no, 113, 122, 123, 127, 150, 151, 

 154, 155, 156, 157- 



Petaloid, 76, 86, 87, 88, 120, 125, 126, 156. 



Potaloidese, 152, 154. 



Petiole, 52, 53-54, 56, 59, 60, 61, 63, 64, 66 ; 

 description of, 147. 



Petunia, 157. 



Phanerogams (see Flowering plants). 



Phloem (see Bast). 

 Phosphates, 10, 160. 

 Phosphorus, 5, 10. 

 Phylloclade, 27, 42. 

 Phyllode, 53, 54, 63, 70. 

 Phyllotaxis, 49-51, 83, 147, 149. 

 Physiology ; elementary, 8-10 ; of root, 

 17-20 ; of stem, 41-45 ; of foliage leaf, 

 66-73 > of flower, 111-131 ; of seeds and 

 fruits, 140-143 ; practical, 160. 

 Pigment, 91. 

 Pilose, 28 



Pimpernel (see Scarlet p., Water p.). 

 Pine, 21, 116, 152. 

 Pineapple, 135. 



Pink, 21, 49, 87, 100, 105, 124, 129, 138, 156. 

 Pinnate, 59, 60, 61, 63. 

 Pinnately ; p. cleft, 59 ; p. divided, 59 ; p. 

 lobed, 59 ; p. parted, 59, 62 ; p. veined, 

 56, 57, 59' 

 Pins, 145. 

 Pinus (see Fir). 

 Pip, 132, 136, 141. 



Pistil, 81, 83, 85, 92, 115, 12?, 124, 128, 129, 

 152, i53, i54, i55, 156, 157, 158; de- 

 scription of , 148, 151. 

 Pistillate, 94. 



Pit, 32, 33, 55 ; bordered pit, 35 ; p. mem- 

 brane, 32, 33. 

 Pitcher-plants, 4, 54, 62, 71. 

 Pith, 29, 30, 34, 38, 39, 40, 42, 152, 159. 

 Placenta, 101, 102, 104, 106, 107. 

 Placentation, 102, 104, 105, 106, 137, 154. 

 155, 156, 157, 158 ; description of, 151. 

 Plaited, 49. 



Plane, antero-po.vterior p. (see Median) ; 

 lateral p., 82; median p., 52, 82; 

 oblique p. , 82. 

 Plank, 39. 



Plantago (see Plantain). 

 Plantain, 57, 78, 93, 117, 118, 13S. 

 Plants, how differing from animals, 2-4 ; 

 aquatic p., 11, 18, 19, 23, 43, 68, 112, 

 115, 140; climbing p., 8, 24; creeping 

 p., 24; flowering p., 2, 12, 21, 33; 

 flowerless p., 2 ; green p., n ; insecti- 

 vorous or carnivorous p., 3, 54,61-62, 

 71, 73, 112, 114 ; land p , 17, 19, 43 , 69, 

 70; marsh p., 23 ; multicellular p., 8, 

 12 ; unicellular p., 8. 

 Plum, 42, 139, 156. 

 Plumbago, 84, 112, 142. 

 Plumule, 132, 133, 142, 143. 

 Pod, 102, 137, 140. 

 Point, giowing (see Growing-point). 

 Pollen, 74, 75, 92, 96, 97, 99, in, 114-131 , 

 p. canal, 107, 114; p. grain, 98, 109, 

 114, 116, 118, 123, 131, 158 ; p. sac, 98, 

 109, 152; p. tube, 114, 115, 125. 

 Pollination, 114, 140, 151; by birds, 130; 

 cross, 115-130; by insects, 118-130; 

 self, 115, 130-131 ; by water, 115; by 

 wind, 115-118, 120. 

 Pollinium, 97, 130. 

 Polyadelphous, 95. 

 Polyanthus, 125, 157. 

 Polycarpellary, 101. 

 Polygamous, 99. 

 Polygonaceae, 155. 

 Polygonum amphibium, T12. 

 Polvpetala?, 153, 155, 156. 

 Polypetalous, 87, 88, 114, 153. 



