x 
Pterocarya, 91. 
Pterogonacez, 63. 
Pterospora, 131. 
Puccoon, 198, 
Pulmonaria, 119. 
Pulque, 81. 
Pulsatilla pratensis, 203. 
Pultenea, 166. 
Pumpkin, the, 155. 
Punica granatum, 158. 
Purshia, 163. 
Purslane family, the, 152. 
Putamen, the, or stone, 33. 
Putoriez, 141. 
Pygeum, 164. 
Pyrolee, 131. 
Pyrularia oleifera, 102. 
Pyrus malus, communis, and corona- 
ria, 162. 
Pyxidanthera, 120. 
Qualea, 160. 
Quassia family, the, 173, 
Quercitron, 93. 
Quercus, 92; Q. virens, ib.; Q. tincto- 
ria, 93. 
Quina, 142. 
Quince, the, 162. 
Quitajez, 164. 
Raceme, explanation of the term, 
23. 
ne the, definition of the term, 15, 
Radiola, 177. 
Radish, the, 197. 
Rafflesiacez, 101. 
Rafinesquia, 138. 
Ramenta, nature of, 7. 
Ranunculacee, 202; ranunculus acris, 
&c., 43, 48, 203. 
Raphanewe, 196, 
Raphe, explanation of the term, 32. 
Raphides, nature of, 4, 
taspberry, the, 163. 
Rattlesnake-grass, 69. 
Ravengla, 82. 
Rectembryee. 118. 
. coloring matters, whence derived, 
Rep-top, 69. 
Relhaniez, 137. 
Renealmia., 83. 
Reproduction, organs of, 22; office of 
the stamens and the pistil, 26; of 
flowerless plants, 37. 
Resedacew, 194: reseda odorata and 
luteola, 195. 
Resins, varieties of, 41. 
Restiaceze, 72; restias, ib. 
Reticulum, definition of, 7. 
Rhamnacee, 171; rhamnus catharti- 
cus, ib. 
Rheum palmaium, compactura, and 
rhaponticum, 108. 
Rhexiew, 159. 
Rhinanthidew, 116; rhinanthus, ib. 
Rhizanthee. 100. 
Rhizobolacee, 180. 
Rhizocarpee, 64, 
Rhizogen family, the, 100. 
Rhizome, the, or root stock, 11. 
Rhizophoracee, 160. 
Rhododendrons, 131. 
Rhodoree, 131. 
Rhubarb, 108. 
Rhus toxicodendron, venenata, &c., 
170. 
Rhynchosia, 166. 
Rhynchosporee, 71. 
Ribesiacez, 149; ribes grassularia, ru- 
brum, &c., 150. 
Ribsonia, 150. 
Ricciew, 62. 
Rice tribe, the, 70. 
Ricinus communis, 99. 
Riddellia, 137. 
Rings, number of concentric, not an 
exact indication of the age of a tree, 
12} 
Rivinee, 108. 
Robinia pseudo-acacia, 167. 
Rocella tinctoria, 61. 
Rochea, 151; rochee, ib. 
Rock-rose family, the, 193. 
Rolandree, 135. 
936 
INDEX TO BOTANY. 
Roots, the, of plants, various kinds, 
forms, and objects of, 9; explanation 
of scientific terms expressive of dif- 
ferent characters of, ib.; difference 
between true roots and subterranean 
stems, 11; crown of the root, ib. 
Rosacee, the rose family, 161. 
Rotbeelliacez, 68. 
Royena, 128, 
Rubia tinctoria, 142. 
Rubiacew, 140. 
Rudbeckia, 137. 
Rue family, the, 174. 
Ruellia formosa, 114. 
Rumex, 108, 
| Ruppia, 73. 
Rushes, the, 77. 
Rutacew, 174; ruteze, ib.; rutosma 
texensis, 175. 
Rye, 69. 
Rytisma acerinum, 182. 
Sabal, 77; sabalinee, ib. 
Sabbatia, 122. 
Saccharum officinale, &c., 68. 
Safflower, 139. 
Saffron, 82. 
Sage, 115. 
Sageretia, 171. 
Sagittaria, 43, 75; sagittifolia, 75. 
Sago, of commerce, 76; the sago palm, 
77; impure, 88. 
Salacia, 183. 
Salaxidez, 130; salaxis, ib. 
Salicineze, 93; salix, 51, 93. 
Salicorniez, 109. 
Salpiglossidee, 116. 
Salsify, 139. 
Salsolez, 110. 
Salvadora persica, 110. 
Salvia, 115. 
Sambucee, 142; sambucus, ib. 
Samolez, 112; samolus, ib. 
Samydacee, the samyda family, 103. 
Sandalwood family, the, 102; red san- 
dalwood, 167. 
Sandarach, or pounce, 90. 
Sanguinaria canadensis, 198. 
Sanguisorbee, 163 : 
Saniculee, 145. 
Sanseviera, 79. 
Santalaceze, 102; 
&ce., ib. 
Sap, course of the, 41; sap wood, 13; 
sap green, 171. 
Sapindacee, 180; sapindus saponaria, 
181. 
Sapodilia family, the, 127. 
Saponaria officinalis, 191. 
Sapotacee, 127. 
Sapsago cheese, cause of the peculiar 
flavor of, 167. 
Sarcanthidee, &5. 
Sarcocephalus, 141. 
Sarcocarp, the, 33; sarcoderm, 35. 
Sarcocol family, the, 104. 
Sarcoleena, 186. 
Sarcolobee, 165. 
Sargassum bacciferum, 42. 
Sarmenta, definition of the term, 10. 
Sarraceniacez, 198. 
Sarsaparilla, 71, 86; the false, 144. 
Sassafras officinale, 107. 
Satureinez, 115; satureia, ib. 
Satyriadez, 85. 
Saururacee, 94; saururus cernuus, 
ib. 
Saussurea, 138. 
Savia, 99. 
Savory, 115. ; 
Saxifragaceze, the saxifrage family, 
148. 
Scabiosa, 140. 
Scevolee, 133. 
Scammony, 120. 
Scandicinee, 146. 
Scepacez, 99. 
Schangina, 110. 
Scheuchzeria, 75. 
Schillera, 188. 
Schizandree, 201. 
Schizanthus, 116. 
Schlechtendalia, 138% 
Schleidenia, 119. 
Schcenus, 71. 
Schollera, 78. 
santalum album, 
Schouwia, 196. 
Schwalbea, 116. 
Sciadopitys, 90. 
Scientific Terminology. See Defini- 
tions. . 
Scilleze, 79. 
Scirpee, 71; scirpus, ib. 
Scitaminee, 83. 
Scleranthee, 152 
Scleriez, 71. 
Sclerogen, composition of, 3. 
Sclerolepsis, 135. 
Scolobus, 166. 
Scolopendrium officinarum, 65. 
Scolymez, 138; scolymus, ib.. 
Scorzonereze, 138. 
Screw pines, the, 74. 
Scrophulariacez, 115. 
Scutellarines, 115. 
Scythian lamb, 65. 
Seakale, 197. 
Sea-weed family, the, 57; process of 
congugation in, 58; the sea-wrack 
tribe, ib. : 
Sebesten plums, 119. 
Secale cereale, 69. 
Secamonee, 125. 
Secretions of plants, 39. 
Securidaca, 192, 
Sedee, 151. 
Sedge family, the, 70; uses of various 
sedges, 71. 
Sedgwickia, 141, 148. 
Sedum acre, 151. 
Seed, the, nature and component parts 
of, 35; scientific terms employed to 
designate the varieties of form and 
composition of, as well as those of 
the component paris, 35, 37. 
Selagine, 114; selago, ib. 
Selaginella, 63. 
Selinum, 145. 
Semecarpus anacardium, 170. 
Sempervivum tectorum, 151. 
Senebieriez, 196. 
Seneca snake root, the, 192. 
Senecionidez, 136; senecionez, 137. 
Senna, 168. 
Sensitive plants, cause of the motions 
of, I. 
Sepals, the, 25. 
Sequieria, 108. 
Serapiadee, 85. 
Seringia, 188. 
Seriphiew, 137; seriphium, ib. 
Serratula tinctoria, 139. 
Service berry, the, 162. 
Sesamum, 121. 
Seseli, 44. 
Seselinez, 145. 
Sessea, 118. 
Sesuveze, 151; sesuvium, ib. 
Sete, or bristles, 7. 
Setaria germanica, 68. _ 
Sethia, 183. 
Seymeria, 116. 
Shaddock, the, 185. 
Shea butter, 127. 
Sheep-sorrel, 108. 
Shepherdia argentea, 105. 
Shorea robusta, 51. 
Shoot, structure of a young, during the 
first and second years, 11, 12. 
; scleranthus, ib. 
Shrubs, distinction between, and 
trees, 10. 
Sibbaldia, 163. * 
Sibthorpia, 116; sibthorpiez, ib. 
Sicyoidez, 155; sicyos, ib. 
Sida, 189; sidew, ib. 
Sidesaddle-flower family, the, 198. 
Sileneze, 190. 
Siler. 146; silerines, ib. 
Silica, abundance of, in the grasses, 
39 
Siliqua, the, definition of, 34. 
Silk cotton family, the, 188. 
Silphiez, 136; silphium, ib. 
Silver weed, 164. 
Silybee, 138; silybum, ib. 
Simarubacee, the simaruba family. 
173. 
Sinapis nigra and alba, 197. 
Siphocampylus, 132. 
Siphonia elastica, 99, 100. : 
Sisymbriez, 196; sisymbrium, ib 
Sium latifolium, 147. 
