Tuberales, 394 
Tubercles, 176, 179 
Tubiflore, 590 
Tubuliflore, 613 
Tulip, 260, 266 
Tulip Poplar, 516 
Tung Oil, 551 
Turgor, 155 
Turnera aphrodisiaca, 566 
diffusa, 566 
Turneracee, 566 
Turnip, 162, 240 
Turpentine, 465 
Bordeaux, 466 
Turpeth Root, 591 
Tussilago Farfara, 612, 615 
Twig, 190 
Twin crystals, 90 
Tyloses, 213 
Typha, 282 
Ulmacee, 507 
Ulmus, 507 
Ulmus fulva, 221, 223, 506, 507 
Ulothrix zonata, 341 
Fig. of, 338 
Ulva lactuca, 342 
Umbel, 258 
compound, 258 
Umbbellales, 575 
Umbellifera, 243, 266, 303, 576 
Umbelliflorz, 575 
Unit characters, 643, 644 
Uredinales, 399 
Uredinium, 400 
Uredo linearis, 401 
Uredospore, 400 
Urginea maritima, 490 
Urtica urens, stinging hair of, 126 
Urticales, 507 
Usnea, 414, 417 
Ustilaginales, 397 
Ustilago Maydis, 397 
Ustilago Zea, 397, 398 
Utricle, defined, 304 
Utricularia, 248, 638, 639 
Utriculariacee, 640 
Uva, defined, 304 
INDEX 
Uva Ursi, 581 
corolla of, 273 
Vaccinea, 581 
Vaccinium, 581 
Vaccinium corymbosum, 581 
Vacuole, contractile, 27 
food, 26 
Vacuoles, sap, 19, 40 
Valerian Family, 608 
Valeriana, 609 
Valeriana officinalis, 608, 609 
Valerianacea, 608 
Valerianales, 608 
Vallisneria, 291 
Valves of fruits, 298 
Vanilla, 496 
Vanilla planifolia, 496 
Figs. of plant, 495 
histology of fruit, 307 
roots of, 161 
Vanilla Leaf, 615 
Variations, 652 
Varieties, 327 
naming of, 331 
Variety epithet, 331 
Vascular bundles, 140 
Vascular rays, 199 
Vaucheria, 95, 346 
Vaucheria sessilis, Fig. of, 345 
Vaucheria terrestris, Fig. of, 341 
Vegetable Kingdom, 1 
Vegetative Multiplication, 46 
Veil, partial, 406 
universal, 408 
Veins, 222, 230 
Velamen, 161 
Venation, leaf, 230 
Venter, 69, 70 
Venus fly-trap, 36, 625 
Figs. of, 35, 626 
Veratrina, 491 
Veratrum viride, 490 
Verbasci Flores, 600 
- Verbasci Folia, 600 
Verbascum, 275, 599 
Blattaria, 599 
phlomoides, 600 
91 
