Instant Notes: Plant Biology

Urticaceae, 212
Utricularia, 224–5

Vacuole, 2–3, see alsoTonoplast
Vanilla, 230
Variation, geographical, 196
Variety, 315
Varnish, 239
Vascular bundle, vascular
cylinder, 27, 31–2
Vascular rays, 36
Vavilov Centers, 228–9
Vector, disease, 218
in plant genetic engineering,
253–4
Vegetative form, evolution of, 311
Vein, 37
Venus Fly-Trap, 224–5
Vernalization, 72, 102, 190
Vesicle, 12, 13
Vessel element, 25
Vicia faba, 92
Vinblastine, Vincristine, 237
Vir (Virulence) Region, 253
Virus, 218, 256

Viscaceae,seeMistletoe

Viscose, 233

Vision, insect, 43

Volcanoes, in plant distribution,

164

Volvox, 263

Wasps, as pollinators, 308, 310

Water, as seed disperser, 188

channels, 6, 125

conservation, 144

potential, properties, 115–6

transport, 115–20

Water hyacinth, see Eichhornia

crassipes

Waterlily, 308–9, 312

Waterlogged environments, 162

Waterlogging, 99

Waterwheel plant, 224–5

Weevil, 303

Welwitschia, 258, 304

Wheat, 50, 99, 182, 228

Rust, 213

Willow, 106, 172, 188, 204

Wilt, bacterial, 217

Winteraceae, 312

Witchweed, see Striga,220–221

Woad, 239

Wood, 7, 34–36, 232–4

Woodland, 172, 205

Wrack, 259, 262, 262–3

Xanthophyll,seePigment-Accessory

Xerophyte, 122–123

Xylem, 25–28, 33 , 35, 232, 297, 304

parenchyma, 33, 130

water flow, 117

Yam, 228–9

Yeast, 230

Yew, 52, 237, 297, 299–300

Yucca, 311

Zea mays,seemaize

Zea perennis, 231

Zeatin, 73–4

Zostera, 47

Zosterophyllopsida, 258, 275

Zosterophyllum, 273, 275

Zygomorphic flower, 309

332 Index