790 INDEX 
Tissue, chlorenchyma, 116 Tracheary tissue, 135 
collenchyma, 113, 117 Tracheids, 135, 196, 139 
conducting, 151 Fiber, 214 
conducting parenchyma, 117 Tradescantia, 82, 253 
cork, 129 Tragacanth, 95 
cribriform, 133 Tragacantha, 539 
embryonic, 114 Trailing arbutus, 272, 681 
endodermal, 127 Trama, 407 
epidermal, 122 Transpiration, 65, 226 
fundamental, 116 Stomata, 124 
generative, 113 Stream, 226 
ground, 116 Trape natans, 569 
laticiferous, 131 Trapacea, 569 
mechanical, 151 Tree, defined, 190 
medullary ray, 139 Trees, branching in, 191 
meristematic, 113, 114, 151 Trehalase, 102 
ordinary parenchyma, 113, 116 Trehalose, 75, 102 
parenchyma, 116 Tremellacea, 402 
pericycle, 131 Tremellales, 402 
protective, 151 Treponema, 373 
reserve parenchyma, 116 Treviranus, 17 
sclerenchyma, 113, 118 Tribes, 329 
secreting, 151 Trichogyne, 358 
sieve, 133 Trichomes, 124 
stony, 118 Trichophyton, 412 
storage, 151 Trifolium, 540 
suberous, 129, 130 Trifolium pratense, 540 
tracheary, 135 repens, 536 
Tissues, 8, 111 ; Trigonella Fanum-gracum, 540 
adult, 113 Trilisa odoratissima, 615 
classifications of, 111, 151 Trillium, 490 
complex, 113 Trillium erectum, 490 
primary, 111, 115 Trimorphism, 289 _ 
secondary, 112 Triticum, 485 
simple, 113 Triticum sativum, starch of, 79 
Tobacco, 596, 597 Tropaolum, 267 
Tolu, 539 Tropisms, 32 vi 
Toluifera Balsamum, 539 _ Tropophytes, 617, 619 
: Pereira, 539 True Fungi, 375 a 
Tomato, 304, 596 True Mosses, 426 
Tonga, 487, 593 Truffles, 394 : 
Tooth Fungi, 404 Trumpet Creeper, 291, 313 _ 
Tormentilla, 536 Trunk, defined, 190° a 
Torulacea, 381 Trypsin, 103 
Torus, 262, 265 Tschirch, 96 
Touranose, 75 Tsuga, 465 
Tournefort, 325 Tsuga canadensis, 466 
Toxins, 33 Tuber, defined, 192 
Trachez, 135 Tuber, genus, 394 
