386 
INDEX 
Vaucheria, terrestris, 187 
Vavaea, 301 
Veil, partial, 223 
universal, 225 
Venation, leaf, 120 
Veratrina, 252 
Veratrine, micro-chemic test for, 53 
Veratrum, 251 
viride, 251 
Verbasci Flores, 342 
Folia, 342 
Verbascum, 147, 340 
Blattaria, 340 
Thapsiforme, 342 
Thapsus, 342 
Verbena N. F., 345 
hastata, 345 
Verbenaceae, 345 
Vernation, 118, 119 
Veronica, 148, 340 
Verticillaster, 139 
Viburnum Lentago, 347 
Opulus, 347 
Prunifolium, 347 
Vinca, 157 
Vinum Xericum, 309 
Viola tricolor, 72, 316 
Violaceae, 316 
Viscum, 37 
Vitaceae, 307 
Vitis, 309 
Volatile oils, 60 
Vouacapoua Araroba, 292 
Walnut Family, 264 
Waltheria, 309 
Water Leaf Family, 336 
Watermelon, 347 
seed, 348 
Water stomata, 71, 72 
Weigelia, 347 
Welwitchia, 36 
Weymouth Pine, 24 
Wheat, Fig. of plant, 246 
rust, 2x8 
Wheat, starch, 50 
White Pine, 24-31 
Willow, 260 
Winter’s Bark, 272 
Witchhazel Family, 285 
Wood, defined, 111 
fibers, 71 
heart-, 113 
microscopic characters of angio 
spermous and gymnosper 
mous, 1 13 
parenchyma, 69 
pine, 112 
sap-, 1 13 
Xanthophyll, 61 
Xanthoxyli Fructus N. F., 299 
Xanthoxylum, 299 
americanum, 299 
Clava-Herculis, 299 
Xerophytes, 83 
Xylem, 79, 83 
Yam Family, 252 
Yeasts, bottom, 203 
defined, 200 
Hansen’s classification of, 200 
top, 200 
Yucca, 249 
Zanthoxyleae, 298 
Zea N. F., 248 
Mays, 248 
Zedoaria, 255 
Ziehl’s Carbol-fuchsin, 181 
Zingiber, 255 
officinale, 254, 255 
Zingiberaceae, 253 
Zoogloea, 94 
Zoospore, 42 
Zoospores, 186, 187 
Zygnemaceae, 188 
Zygomycetes, 196 
Zygophyllaceae, 297 
Zygospore, 188, 190 
Zymase, 46, 47, 63 
