xil 
Trilepis, 71. 
Trilliacez, the trillium family, 86. 
Triostez, 142. 
Tripe de roche, 61. 
Tripsacum dactyloides, 68. 
‘Triraphis, 69. 
Triticum vulgare, 69. 
Trixidez, 138. 
Trollius, 202. 
ae a 176 ; tropzolum, ib. 
Truffle, 45, 60. 
Trumpet creeper, 121. 
Truncus, the definition of the term, 10. 
Trymalium, 171. 
Tsuga, 89. 
Tuber, the, how produced, 11. 
Tuber cibarium, 60. 
Tubuliflore, 135. 
Tulip tree, the, American, 201. 
Tulipa, 80; tulipeze, ib. 
Tupelo family, the, 102. 
Turio, meaning of the term, 22. 
Turneracee, the turnera family, 153. 
Turnip, the Indian, 74; the common 
and Swedish, 197. 
Turpentine, Chian, 170. 
Tussac grass, 68. 
Tussilaginez, 135; tussilago, ib. 
Typhinez or typhacee, 73. 
Udora, 86. 
Ulmacez, 97; ulmus fulva, ib. 
Ulva ther ‘malis, 45. 
Umbel, definition of the term, 23. 
Umbelliferze, the umbelliferous family, 
144, 
Umbilicee, 151. 
Ungnodia, 181. 
Upas poison, the, of Java, 97. 
Urceola, 124. 
Uredo, 60. 
Urenee, 189. 
Urn mosses, organs of reproduction in, 
Ursinia, 137. 
Urticacee, 96; urticez, ib. 
Usnea florida, 61. 
Ustilago, 60. 
Utricularia, 113. 
Uvulariee, 78. 
Vacciniaceze, 130; vaccinium oxycoc- 
cas and macrocarpum, ib. 
Vahea, 124, 
Valerianaceze, the valerian family, 
140. 
Vallisneria spiralis, 86. 
Vandee, 85 
Vanilla, 85. 
Varronia, 119. 
Vascular system, the, of the exogenous 
stem, 11. 
938 
INDEX TO BOTANY. 
| Vascular tissue, 4. 
Vegetable life, distinction between, 
and animal, 1. 
Vegetable marrow, the, 155. 
Vegetation, organs of, 6; divisions of 
the horizontal range of vegetation 
according to Meyen, 47-49; classifi- 
cation of the vertical range of, ac- 
cording to Meyen, 50, 51. 
Velleze, 196. 
Velleia, 133. 
Vellosia, 80; vellozieze, ib. 
Venation of leaves, 17. 
Ventilago, 171. 
Venus’s fly-trap, 193. 
Veratrine, 79; veratrum album, ib. 
Verbascex, 116; verbascum thapsus, 
ib. 
Verbenacee, 114; verbenez, ib. 
Verbesinee, 136. 
Vernoniacee, 135; vernonie, ib. 
Veronica officinalis, 117. 
Verruce, or warts, &. 
Vervain family, the, 114. 
Vestia, 118; vestieze, ib. 
Vetches, 166. 
Viburnum, 47, 48, 142. 
Viciez, 166. 
Victoria, 199. 
Vigna, 166. 
Vilfa, 69. 
Villi. See Hairs. 
Vine, poison, 170; 
178; the Alleghany, 197. 
Violacez, the violet family, 193. 
Viscum album, 143. 
Vitacee, 178; vitis vinifera, 179. 
Vitex agnus castus, 114, 
Vittee, 144 
Vivianiacee, the viviania family, 190. 
Vochysiacee, the vochysia family, 
1; 160: 
Volatile oils, 40. 
Vouay, 77. 
Wake robin, the European, 74. 
Waldsteinia, 163. * 
Wallflower, the, 43. 
Walnut family, the, 91. 
Waltheria, 188. 
Warts, nature of, 8. 
Water, office of, with respect to plants, 
2 
Water-bean family, the, 198. 
Water hemlock, 147. 
Water leaf family, the, 120. 
Water lily family, the, 199. 
Water melon, the, 155. 
Water-parsley, 147. 
Water-pepper family, the, 191. 
the vine family, | 
Virginian snake root, 102; creeper, | 
178. 
Water-plantain family, the, 74. 
Water-shield family, the, 199. 
Wax, vegetable, 40; obtained from 
several species of Load 76; the 
wax plant, 125. 
W einmannia, 48. 
Weissiacez, 63. 
Weld, or dyer’s rocket, 195. 
Wettinia, 74. 
Wheat, 69. 
Wicopy, 104. 
Widringtonia, 89. 
Willdenovia teres, 72. 
Willow herb, the, 157. 
Willow strife family, the, 160. 
Willow tribe, the, 93. 
Wine, principal varieties of, 179. 
Winter’s bark, 20 
paper aromatica and granatensis, 48, 
Wintergreen, 131. 
Wistaria, 166; wistariez, ib. 
Witch-hazel family, the, 143. 
Witsenia, 82. 
Woad, 197. 
Wood sorrel family, the, 176; wood 
sorrel, 177. 
Woodrush, Tile 
Woody fibre, or ligneous tissue, 4; 
woody layers, 12. 
' Wormwood, 139. 
Wourali, the, or ourari. 123. 
Wrightiew, 124. 
Xanthisma, 135; xanthium, 136. 
Xanthorrhea, 47. 
Xanthorrhiza, 203. 
Xantophyllum, 192. 
'| Xeranthemee, 137. 
Xyloma acerinum, 182. 
Xyridacez, 77; xyris, 78. 
Yam tribe, the, 87. 
Yellow coloring matter, sources whence 
derived, 41. 
Yellow-eyed grass family, the, 77. 
| Yerba maté, 128. 
Yew tribe, the, 89; 
ropean yew, 90. 
the common Eu- 
| Zamia elliptica, 88. 
| Zannichellia, 73. 
Zanthoxylacez, the zanthoxylon fami- 
| “Jy, 174. 
| Zea mays, 70. 
| Zebrawood, 169. 
| Zilla, 196 ; zillez, ib. 
_ Zingiberacee, 83. 
| Zizania aquatica, 68, 70. 
| | Zizyphus jujuba, &e., I: 
Zostera marina, 72, 73. 
| | Zygophyllacez, 175; ; zygophyllum, ib. 
