506 Lake Maxinkuckee , Physical and Biological Survey 



Thanaos persius, 39. 

 thapsus, Verbascum, 40!). 

 tharos, Phyciodes, 39. 



Thaspium barbinode, 37!). 



pinnatifidum, 379. 

 thelypteris, Dryopteris, 201. 

 thelypteroides, Athyrium, 203. 

 theo, Heodes, 39. 

 Thin-grass, 232. 

 Thistle Family, 427. 

 Thistle, Canada, 447. 



Common Bur, 446. 



Roadside, 447. 



Russian, 298. 



Swamp, 447. 



Tall, 447. 

 Thorn-apple, 308. 

 Thorn-headed Worms, 101. 

 Thorn, Downy, 335. 



Red-fruited, 335. 



Scarlet, 335. 



Shining, 335. 

 Three-cornered Bulrush, 186. 

 Thi-ee-leaved Hop-tree, 350 . 



Ivy, 354. 

 Three-seeded Mercury, Virginia, 351. 

 Three-square, 245. 

 Thyme-leaved Pin-weed, 368. 



Sandwort, 300. 



Speedwell, 411. 

 Thymeleaceae, 370. 

 thyroides, Polygyra, 74. 



Polygyra bucculenta, 74. 

 thyi'siflora, Naumburgia, 389. 

 Tick-trefoil, Canadian, 343. 



Illinois, 343. 



Large-bracted, 342. 



Naked-flowered, 342. 



Round-leaved, 342. 



Panicled, 342. 



Pointed-leaved, 342. 



Prostrate, 342. 



Sessile-leaved, 342. 



Showy, 343. 



Smooth Small-leaved, 343. 

 Tickseed, Tall, 440. 



Stiff, 440. 

 Tickseed-sunflower, Tall, 442. 

 Tiliacese, 364. 

 Tilia americana, 364. 

 Timothy, 231. 

 Tiniaria convolvulus, 296. 



Tippecanoe Lake, 62, 64, 72, 123. 

 Tippecanoe River, 15, 16, 21, 42, 43, 

 44, 51, 54, 55, 56, 61, 62, 71, 

 72, 213, 306, 308, 314, 349, 350, 

 356, 366. 

 Tipula, 36. 



tinctorium, Galium, 419. 

 Tithymalopsis corollata, 352. 

 Tithymalus cyparissias, 352. 

 tityrus, Epargyreus, 39. 

 Toad Rush, 261. 

 Toad-flax, Bastard, 291. 



Blue, 409. 



Wild, 409. 

 Tobacco, Rabbit, 444. 

 Tobacco-root, 421. 

 Tokophyra quadripartata, 99. 

 Tolypothrix tenuis, 148. 

 tomentosa, Spiraea, 330. 

 Toothed Spurge, 352. 

 Toothwort, Cut-leaved, 320. 

 Touch-me-not, Pale, 349. 



Spotted, 349. 



Wild, 349. 

 Tovara virginiana, 294. 

 Toxicodendron radicans, 354. 



vernix, 354. 

 Tracaulon arifolium, 296. 



sagittatum, 295, 296. 

 Tradescantia reflexa, 260. 

 Trailing Arbutus, 386. 



Wild Bean, 346. 

 Tramea lacerata, 24, 26. 

 transversum, Musculium, 74. 

 Tree-of-heaven, 350. 

 Trefoil, Bean, 392. 



Marsh, 392. 

 tremuloides, Populus, 276. 

 Triadenum virginicum, 367. 

 Tribonema bombycinum, 149. 

 tribuloides, Carex, 250. 

 tricarinata, Valvata, 73. 

 trichophyllum, Batrachium, 187, 313. 

 Trichoptera, Order, 31. 

 trichosperma, Bidens, 442. 

 tricoccum, Allium, 262. 

 tricolor, Hetaerina, 19. 

 Trientalis americana, 389. 

 trifida, Ambrosia, 426. 

 trifidum, Galium, 419. 

 triflora, Poa, 236. 

 triflorus, Rubus, 332. 



