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l^mbilicaria, 342
Uncinula, 225, 344
Union of cells, 24
l^redinaceae, 347
Uredinales, 232, 347
Urediniospores, 233
Uredo. 234, 347
408
INDEX
Uredospores, 233
Uromyces, 235, 347
Uropyxis, 347
Urtica, 362
Urticaceac, 362
Usnea, 216, 224, 340
Usneaceae, 340
Ustilaginaceae, 347
Ustilaginales, 235, 347
Ustilago, 237, 347
Violet, 302, 363
Viscum, 371
Vitaceae, 371
Vitcx, 367
Vitis, 371
Vochysiaccac, 363
Volvocaceae, 332
Volvoces, 172
-^Volvox, 172, 332
W
Vaccinium, 365
Vacuoles, 17
Valerianaceac, 373
Valonia, 192, 336
Valoniaceae, 336
Valoniales, 336
Valsa, 343
Valsaeeae, 343
Valve, 180
Vanilla, 361
Vanillin, 154
Variations, 112
Vascular Bundles, 55
^aucheria, 185, 334
vaucheriaceae, 334
Vaucherioideae, 185, 334
Vegetable Kingdom, 159
Veins, 257
of leaves, 60
Velloziaceae, 360
Venter, 243
Veratrine, 150
Verbascum, 367
Verbena, 367
Verbenaceae, 367
Vernonia, 376
Vernoniaceae, 376
Veronica, 367
Verpa, 342
Verrucaria, 342
Vcrrucariaceae, 342
Vetches, 326
Viburnum, 373
Vicia, 369
Victoria, 364
Vinca, 367
Viola, 302, 303, 363
Violaceae, 363
Walking-fern, 259
Walnut, 310, 372
Water, 71, 139
Cultures, 97
Ferns, 259, 353
Flannel, 185
-lilies, 364
Molds, 186, 335
Net, 172
Plantain, 289, 357
pores, 77
Weberaceae, 351
Wedge-leaved Calamites, 262, 353
Wcisia, 350
Welv.itschia, 275, 355
Wheat Grasses, 359
rust, 232
Smut, 237
White Pines, 282
Rusts, 187, 335
Whorled leaves, 292
Wild Geranium, 302, 326
Willows, 364
Wings, 308
Winteranaceae, 362
Wood-fibers, 33
Wood Mosses, 252, 350
X
Xanthium, 375
Xanthophyll, 11, 155
Xanthoxylum, 363
Xerophytes, 320
Xylaria, 343
Xylariaceae, 343
Xylem, 55
Xyridaceae, 358
INDEX
409
Yeast-Fungi, 344
Plants, 222
Yellow Pines, 282
Yews, 282, 357
Yucca, 300, 358
Zamia, 274, 355
Zaniiaccae, 355
Zannichoilia, 357
Zea, 300. 360
Zingibcraceae, 360
Zinnia, 375 '
Zonaria, 337
Zoospores, 171
Zostera, 357
Zygnema, 182, 333
Zygnemataceae, 333
Zygnema tales, 333
Zygogonium, 333
Zygomorphic, 322
Zygoniorphy, 309
Zygophyceae, 177, 33i
Zygophyllaceao, 363
Zygospore, 190
Zygote, 109, 171
Zymase, 153
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