430 



INDEX AND GLOSSARY 



Swarm-spore, 179. 



Sweet alyssum, 336, Fig. 460. 



Sweetbriar, 359. 



Sweet Cicely, 367. 



Sweet pea, 110, 350, Figs. 165, 222. 



Sweet potato, 16, 380. 



Sweet Williain, 321, Fig. 456. 



Sycamore, 273, Fig. 417. 



Symbiosis, 186. 



Symplocarpus foetidus, 295. 



Sympodial: axial growtii continued by 



successive lateral shoots, 1 13 

 Syngenesious: anthers united in a rins, 



(282). 

 Syringa, 363, 389. 

 Tabular, 233. 

 Tamaraclv 294. 

 Tanecetum vulgare, 408. 

 Tangle-berry, 392. 

 Tannin, 246. 

 Tansy, 408. 

 Tap-root, 7. 



Tara.xacum officinale, 403, Figs. 8, 275. 

 Tare, 350. 

 Teasel, 3. 



Tecoma, 10; capsule, 152, Fig. 258. 

 Teleutospore, 184. 

 Telophase, 240. 

 Tendril, 109; roots as, 10. 

 Terrestrial, 199. 

 Teucrium, 370. 

 Thalictrum, 325. 



Thallophyte, 176, 178. Thallus, 178. 

 Thi-stle, 142, 404, 409, Figs. 228-230, 



276; down, 161, Fig. 276; Rus.sian, 



Fig. 99; star, 410. 

 Thorn spines, 104, Figs. 152-155. 

 Thoroughwort, 413, Fig. 159. 

 Thyrse: compound cluster with main 



axis indeterminate and branches de- 

 terminate, (245). 

 Thuja, 294, Fig. 426. 

 Tiarella, 362. 

 Tiers of branches, 54. 

 Tiger-flower, 375, Fig. 487; lily, 298, 



Fig. 30. 

 Tillandsia, 88. 

 Tissues, 252; systems, 257. 

 Toad-flax, 20, 23, 373, 374, Figs. 255, 



485; flower, 137; poUination, 132, Fig. 



211. 

 Toadstools, 180 



Tobacco, 379; cell-sap, 246; Indian,400. 

 Tomato, 121, 378, Fig. 186; fruit, 153; 



graft, 28. 

 Toothwort, 335. 

 Torus: part or organ to which the parts 



of the flower are attached; upper end 



of the flower-stalk. (252). 



Touch-me-not, 343. 



Toxylon pomiferum, 315, Fig. 451. 



Tracheids, 256. 



Tradescantia, 235, 238, 302. 



Tragapogon, 403. 



Transpiration, giving off' of water, (174). 



Trees, forms of, 59; struggle in, 53. 



Trifolium, 350, Figs. 82, 468. 



Trillium, 138, 300, Fig. 221; society, 225. 



Trimerous: in 3's, (271). 



TropiEolum, 342, Fig. 195. 



Trumpet-creeper, 10, 152, Fig. 258. 



Truncate: appearing as if cut off; 



squared, (199), Fig. 141. 

 Tsuga Canaden.sis, 293, Fig. 425. 

 Tuber: short congested part, (77). 

 Tuberose, 304. 



Tulipa Gesneriana, 298; suaveolens. 298. 

 Tulip-tree fruits, 160; leaf. Fig. 141. 

 Tumble-weeds, 163. 

 Turnip, 7, 13; fruit, 152; Indian, 295. 



Fig. 226. 

 Turnip, starch in, 31, Fig. 44. 

 Turtlehead, 374. 

 Tu.ssilago, 410. 

 Twigs, history of, 56; starch in, 32, Fig. 



43. 

 Twiners, 108, 111. 

 Twin-leaf, 328. 



Ulmus, 314, Figs. 146, 448, 449, 450. 

 Umbel: corymbose cluster with branches 



of about equal length and arising from 



a common point, (242). 

 Umbellet: secondary umbel, (242). 

 Umbelliferae, 366. 

 Undergrowth, 224. 

 Undulate: wavy, (200). 

 Uredospore, 185. 

 Urtica dioica, 316; gracilis, 316. 

 Urticaceae, 313. 

 Uvularia, 300. 

 Vacuole, 234. 

 Vaccinium, 392. 



Valves: separable parts of a pod, (278). 

 Variation, 228. 

 Vascular, 233, 256. 

 Vaucheria, 179, 233, Figs. 315, 316. 

 Vegetable mould, 202. 

 Velum, 194. 



Venation: veining, (191). 

 Verbascum, 373, Fig 22; hairs, 270. 

 Verbena, 372; cutting, Fig. 35. 

 Verbenacese, 372. 

 Vernonia, 413 

 Veronica, 376. 

 Verticillate: with three or more leaves or 



flowers at one node, (112). 

 Vervain, 372. 

 Vetch, 360. 



