oo — ee 
MORPHOLOGICAL, STRUCTURAL, AND PHYSIOLOGICAL BOTANY. 879 
Tripinnate, 176 
Tripinnatifid, 167 
Tripinnatipartite, 167 
Tripinnatisected, 167 
Triple-rlbbed, 160 
Triplicostate, 160 * 
Trisected, 165, 167 
Trisepalous, 225 
Trispermous, 334 
Tristichous, 152 
Triternate, 178 
True arillus, 338, 339 
— bast tissue, 90 
— dichotomy, 103 
— fruit, 846 
— netted venation, 160 
— raphides, 35 
— root, 125, 134 
Truncate, 169 
Truncated root, 139 
Trunk, 115 
Tryma, 318 
Tube, 226, 233 
Tuber, 120 
Tuberculated root, 137 
Tubercule, 137 
Tubular, 227, 231, 233 
— leaf, 174 
Tuft, 149 
Tufted leaves, 149 
— root, 137 
Tunic, 122 
Tunicated bulb, 122 
Turgescence, 782 
Turgidity, 782 
Turpentine vessels, 72 
- Twigs, 108 
Twining, 115 
Twisted zstivation, 220 
— corolla, 221, 222 
— root, 139 
— vernation, 156 
Two-celled, 246, 276 
— cleft, 165, 288 
— lobed, 165, 280 
— membered, 354 
— paired, 175 
= ranked, 151, 354 
— seeded, 334 
— valved, 301 
Tyloses, 52 
Tympanum, 374 
UMBEL, 208 
Umbelliferous, 208 
Umbellule, 209 
Uncinate, 64 
Undershrub, 115 
Undulated, 164 
Unequal leaf, 170 
Unequally pinnate, 176 
Unguiculate, 231 
Unguis, 231 
Unijugate, 175, 176 
Unilateral, 215 
Unilocular, 246, 276, 298 
Union of stamens, 255 
Uniparous, 215 
Unisexual, 20, 240, 360 
Unlining, 356 
Unsymmetrical, 353 
Uovili, 112 
Urceolate, 235 
Uredo-fruits, 380 
Uredo-spores, 380 
Urn-shaped, 174, 235 
Utricle, 311 
Utricuiar vessels, 57 
} 
VACUOLES, 22 
Vaginule, 373, 377 
Valvate, 156, 219, 221 
Valves, 301 
Valvular dehiscence, 253, 
302 
Varieties of estivation, 219, 
220 
— — bracts, 193 
Vascular bundles, 76 
— — closed, 78 
— — definite, 78 
— — indefinite, 77 
— — open, 77 
— — progressive, 77 
— plants, 8 
Vaucheria, 394 
Vegetable histology, 1, 5, 
21 
— mucilage, 771 
— respiration, 801 
Veil, 382 
Veins, 140, 143, 144, 157, 
158 
Veinless, 157 
Veinlets, 158 
Velamen radicum, 132 
. Venation, 144, 157 
—of leaves of 
phytes, 161 
cormo- 
— modifications of, 158, | 
159 
— true netted, 160 
| 
| 
i 
i 
| 
| Venation, varieties of, 159, 
160 
Ventral suture, 268, 300 
Vernation, 155, 200, 218 
Versatile, 248 
Vertical system, 57, 74 
— chorisis, 358 
Verticil, 148 
Verticillaster, 216, 217 
Verticillate, 148 
Vesicular vessels, 57, 786 
Vessels, 51 
— functions of, 785 
Vexillary, 220, 221 
Vexillum, 221, 233 
Vital force, 24 
Vitality of seeds, 850 
Vitellin-globulin, 37 
Vitellus, 337 
Vitte, 72 
Volatile constituents, 813, 
$14 
Volva, 382 
WALL of pollen-cell, 260 
Wardian cases, 806 
Warts, 69 
Water-pores, 789, 799 
Watery vapour, exhalation: 
of, 796 
Wavy, 164 
Wedge-shaped, 172 
Weeping, 116 
Wheel-shaped, 235 
Whorl, 148, 362 
Whorled, 148, 149, 153, 201 
Wing, 182, 233 
Winged, 182, 336 
Wood-cells, 50 
Wood, structure of, 79 
81 
— formation of, 794 
— functions of, 794 
Woody fibres, 49 
— parenchyma, 91 
— tissue, 49, 50 
— — of the liber, 50, 90 
XANTHIC, 828 
Xylem, 76, 81, 794 
ZONES of wood, 82 
Zoogonidia, 395 
Zoospores, 379, 395, 398 
Zy gospore, 394, 777, 830 
Zymogenous, 387 
