Panax horridum and quinquefolium, 
Pandanacez, 74; pandanus, ib. 
-Pangiea, 154; pangium, ib. 
Panicew, 69. 
Panicle, explanation of the term, 23. 
Punicum, 67, 
Punsy, the, 193. 
Papaveraceze, 197; papaver somnife- 
rum, 198, 
Papaw, the, 201; papaw tree, 154. 
Papayacee, 154. 
Papilionaceze, 165. 
Pappophoree, 69. 
Pappus, the, 25. 
Papyrus antiquorum, 71, 72. 
Paraguay tea, 128. 
Pareuchyma, definition of, 2, 16: per- 
fect and imperfect, 3. 
Parieturia, 97, 
Paris quadrifolia, 86. 
’ Parkiew, 168. 
Parmelia parietina, 61. 
Parnassiez, 193; grass of Parnassus, 
ib. 
Paronychiacee, 152. 
Paropsiee, 153. 
Parrotia, 148. 
Parrya, 49. 
Parsley, fool’s and water, 147; the 
parsley family, 152. 
Yursnip, the, 147. 
Partheniew, 136; parthenium, ib. 
Passerina, 104, 
Passifloracez, 
family, 153. 
Pastinaca, 146; P. sativa, 147. 
Patchouli, 115. 
Paullinia pinnata, 181. 
Pavia, 181. 
Pea family, the, 165. 
Peach, the, 164. 
Pear, the prickly, 150; the common 
pear, 162. 
Peat-moss, 63. 
Pecan nuts, 91. 
Pectideze, 135; pectidopsis, ib.; pectis, 
i 
the passion flower 
b. 
Pedalie, 121; pedalium, ib. 
Pedicels and peduncle, 22, 23. 
Pedicularis, 116; P. palustris, 117. 
Pekea butyrosa. 180. 
Pelargonium, 178. 
Peilicle, the superficial, of plants, 6. 
Pellitory, 98 
Peltandra, 74. 
Penwacee, 104; peneee, ib. 
Pennyroyal, 115. 
Penthorum, 151. 
Pentstemon, 116. 
abe i the, or peponida, definition of, 
Pepper family, the, 93; peppermint, 
115. 
Pepperwort family, the, 64. 
Peraphyllum, 162. 
Perianth or perigone, 24. 
Pericarp, the, 33. 
Periplocee, 125. 
Persea gratissima, 107. 
Persica vulgaris, 164, 
Persimmon, the, 128. 
Personia, 105, 
Peruvian quinoa, 110; bark, 142, 
Petalanthera. 106, 
Pefaloidee, 72. 
Pefals and their modifications, 25. 
Petasiteze, 135. 
Petiole, the, 16. 
Petiveriacezw, 108; petiveriez, ib. 
Petroselinum sativum, 147, 
Petunia, 117. 
Peucedanee, 146. 
Phaca, 166. 
Phacelia, 120. 
Phalaridew, 70; phalaris, ib. 
Phanerogamous plants, 66, 
Phascacee, 63. 
Phaseolew, 166; phaseolus, ib. 
Philadelphacee, 149. 
Philesia, 86. 
Philydrum, 78. 
Phippsia, 40. 
Phleum, 68,70; P. pratense, 69. 
Phlox family, the, 120, 
Phebe, 106; phcebee, ib. 
; Pili. 
INDEX TO BOTANY. 
Phoenicinee, 77. 
Phoenix dactylitera, 76, 77. 
Phormium tenax, 80. 
Photinia, 162. 
Phryma, 114. 
Phycomyces, 60; phycomycetes, ib. 
Phylicew, 171. 
Phyllanthee, 99 ; ee ib. 
Phyllocladus, 88, 89, 90. 
Phyllodium, 20. 
Phyllolobe, 165. 
Phyllophor or phyllogen, 15. 
Physalis, 118. 
Physolobium, 166, 
Physurideee, 85. j 
Phytelephas macrocarpa, 77. 
Phyteuma, 51, 132. 
Phytolaccacew, 108; phytolaccez, 109. 
Phytozoa, or contents of antheridia, 
29. 
Picea, 89. 
Pickeringia, 166. 
Pickneya, 141. 
Pickrena excelsa, 174. 
Pilea, 97. 
See Pairs. 
Pilularia globulifera, 64. 
Pimelea, 104. 
Pimento, 158. 
Pimpernel, 112. 
Pinacee, 88. 
Pinckneya pubens, 142, 
Pine family, the, 88; economical uses 
of, 90. 
Pineapple family, the, 80. 
Pinenchyma, definition of, 2. 
Pinguicula, 113; P. alpina, 48. 
Pink root, 123. 
Pinus abies, &c., 52, 89. 
Pipe, Indian, 131. 
Piperacez, 93; piper nigrum, &c., 94, 
Pippul tree, the, 97. 
Pipsissiwa, 131. 
Piriqueta, 153. 
Pisonia, 111. 
Pistachia vera, terebinthus, and len- 
tiscus, 170. 
Pistiew, 73. 
Pistil, the, position and constituent 
paris of, 29; various modifications 
of, 30. 
Pistillidia, nature of, 31. 
Pitavia, 174. 
Pitcairniez, 80. 
Pitcher-pJant family, the, 10]. 
Pitchera, 166. 
Pith, nature and object of the, 12. 
Pittosporacez, the pittosporum family, 
WTS. 
Placenta, the, or projection to which 
the ovules are attached, 30. 
Plane tree and tribe, the, 92, 182. 
Plantaginacee, the plantain family, 
Lbr 
Plantain, the, 83. 
Plants, difference between the vital 
actions of, and animals, 1; requisites 
for the existence of, ib.; elementary 
organs of, 2; compound organs of, 
6; the axis of, and its appendages, 
8; distinction between  caules- 
cent and acaulescent, 10;  stipu- 
late and exstipulate, 20; phane- 
rogamous and cryptogamous, 22, 57, 
66; dichlamydeous, monochlamy- 
deous, and achlamydeous, 24; re- 
productive organs of flowerless, 37 ; 
chemical constituents of, 38; pro- 
ducts and secretions of plants, 39; 
circulation and elaboration of fluids 
in, 413 geography of, 42: Balfou’s 
arrangement of, according to their 
station, viz. A. plants growing in 
water—B. land plants rooting 
in the earth and growing in 
the atmosphere—C. plants growing 
in special localities, 42-46; classifi- 
cation of, according to the horizon- 
tal range of vegetation, 47-49—ac- 
cording to the vertical, 50, 51; 
classes and orders of, according to 
Linneeus, 52-54. 
Platanez, the plame tribe, 92. 
Platylepis, 71. 
Platypetalum, 49. 
Platystemonez, 198. 
ix 
| Plectritis, 140. 
| Pleiotrachez, nature of, 5. 
Pleurenchyma, or woody fibre, 4. 
Pleurocarpi, 63. 
Pleurorhizee, 196. 
Pleurothallidew, 85. 
Pluchea, 136; plucheine, ib. 
Plum, the, 164. 
a aac: 11]; plumbaginez, 
Plume-nutmeg family, the, 95. 
Plumeriew, 124. 
Poa annua, compressa, &c., 69. 
Podalyriew, 166. 
Podocarpus, 88, 89, 90. 
Podophyllum peltatum, 200, 
mh oT abo the podoustemon fami- 
y; 96. 
Poederiew, 141. 
Pogonia, 85; pogonidez, ib, 
Pozostemon patchouli, 115. 
Pokeberry, the, 109. 
Pokeweed family, the, 108. 
Polanisia, 195.. 
Polemoniacee, 120; polemonium cw- 
ruleuin, 121. 
Payee nature of, 28; pollen grains, 
6 
Pollinaria, nature of, 29. 
Polyachyridew, 138. 
Polycarpon, 152. 
Polygalacee, 192; polygala senega, 
ib. 
Polygamia wqualis, &c., 54, 135. 
Polygonacee, 107: polygonum amphi- 
bium, &c., 43, 47, 108. 
Polypodinew, 65 ; polypodium vulgare, 
ib. 
Polyporus destructor and perennis, 60. 
Polytrichacez, 63 5 polytrichum, 48. 
Pomaderree, 171. 
Pomax, 141. 
Pome, the, definition of, 34. 
Pome, 162. 
Pomegranate, 158. 2 
Pondweed family, the, 72, 78; com- 
mon pondweed, 73. 
Pontederiacee, 78. 
Poplar, the, 46, 93, 201. 
Poppy family, the, 197. 
Populus, 93, 201. 
Porewort family, the, 192. 
Porophyllez, 137; porophyllum, ib. 
Portwacacez, 152. 
Potamez, 72 ; potamogeton, ib. 
Potash, prevalence of, in plants, 39. 
Potato, the, 118; the sweet. 120. 
Potentilla anserina, 164. 
Pothos, 45. 
Pottiacee, 63. 
Pounce, or sandarach, 90. 
Pourretia, 80. 
Preefloration or estivation, 24. 
Prasiez, 115 ; prasium, ib. 
Prepusa, 122. 
Prickles, difference 
thorns, 7. 
Pride of China, the, 180, 
Primulacee, the primrose family, 112; 
P. veris, &c., ib. 
Prince’s feather, 110. 
Prinos, 128. 
Prismenchyma, definition of, 2. 
Privet, 126. 
Products of plants, 39. 
Prosenchyma, definition of, &c., 2, 3, 
2 
Proserpinaca, 156. 
Prostantherew, 115. 
Proteacez, the protea family, 105. 
Proteine. the base of gluten, fibrine, 
caseine. and albumen, 40, 
Protoplasm, nature of, 3. 
Prunella, 115. 
Prunus domestica, spinosa, &e., the 
prune, 164, 
Pseudo bulb, the definition of, 11. 
Psiadiez, 135. 
Psidium pyriferum, 158. 
Psoralea, 166. 
Psychinee, 196. 
Psycotriew, 141. 
Ptelea, 174. 
Pteris esculenta, 65. 
Pterocarpus erinaceus and santalinus, 
167. 
9365 
between, and 
