568 



INDEX. 



Page. 



Thalictrum polygamum, i. 24 



pubescens 24 



revolutum 24 



rug o sum 24 



Thapsia tiifoliata i. 273 



Thaspium i. 272 



atropurpureum, 272 



aureum 273 



aureum . 27 1 



barbinode 273 



cordatum 270, 272 



Thesium corymbulosum, ii. 161 



umbellatum 160 



Thimbleberry i. 215 



Thimblcweed i. 8 



Thin grass . . ii. 442 



Tiilaspi . i. 64 



arvense 64 



Bursa-pasloris. 65 



campestre 64 



Thlaspide^ i. 64 



Thorn-apple ii. 101 



Thorn-tree i. 220 



Thoroughwort . . . i. 266, 329 

 Three-awned Grass ii. 434 

 Thiee-leaved Nightshade, 



ii. 295 



Three-seeded Mercury, ii. 173 



Thuya ii. 233 



occidentalis 234 



spharoidalis 233 

 THYMELACE^E -. ii. 163 

 Thymus Virginicus.. ii. 61 



TlARELL A i. 258 



cordifolia 258 



Tickseed Sunflower . . i. 385 



Tilia i. 116 



Americana 116 



Canadensis 116 



glabra 116 



TILIACEiE i. 116 



Tilljda i. 251 



ascendens 251 



simplex 251 



Timothy ii. 418 



Pago. 



Tipularia ii. 272 



discolor 272 



discolor 268 



Toad-flax ii. 31 



Tobacco ii. 100 



Tobacco-pipe i. 456 



Toothwort.. - i. 58 



Touch-me-not i. 125 



Tower Mustard i. 53 



Trachylomia triglomerata, 



ii. 368 



Trachynolia cynosuroides, 



ii. 448 



juncea .... 448 



polyslacltya 448 



Tradescantia ii. 332 



Virginica 333 



Trailing Arbutus i. 432 



Treacle Mustard i. 60 



Trichelostylis ii . 361 



aulumnalis 362 



gembiiflora 362 



mucronulata .. 361 

 Trichodium laxiflorum, ii. 442 



montannm 442 



scabrum 442 



striclum 442 



Trichophorum alpinum, ii. 357 



cyperinum 856 



Hudsonianum . 357 



lineatum 356 



Trichosperma i. 152 



Trichostema ii. 81 



brachiata 55 



dichotoma 81 



Tricuspis .- - ii. 462 



Noveboraccnsis, 463 



seslerioides 463 



Tridens quinquefida. . ii. 463 



Trientalis ii. 11 



Americana 11 



Europaa 11 



Trifolium i- 167 



agrarium 170 



biflorwm 175 



Page 



Trifolium officinale i 170 



Pennsylvanicum, 169 



pratense 168 



reflexum 169 



repens 169 



Triglociiin ii. 261 



elatum 262 



maritimum 261 



palustre 261 



Trillium . ii. 295 



atropurpureum,; 296 



cernuum 295 



erectum 296 



erythrocarpum. 295 



fcetidum 296 



grandiflorum . . 296 



pendulum 295 



pic turn 295 



rhomboideum . . 296 

 undulatum 295 



Triodia cuprea ii. 463 



pallida 461 



Triphora pendula ii. 281 



Triosteospermum i. 302 



Triosteum i. 301 



majus 302 



perfoliatum 301 



Tripolium flexuosum. . i. 350 

 subulalum 350 



Trisetum ii. 452 



molle 452 



palustris 452 



Pennsylvanicum, 452 

 purpurascens. . 453 

 subspicatum 452 



Triticum ii. 474 



caninum 475 



repens 474 



Trollius i. 18 



Americana 18 



laxus 18 



Troximon Virginicum, i. 410 



Trumpet Honeysuckle, i. 296 



Trumpet-flower Tribe, ii. 25 



Tuckermannia Conradi, ii. 5 19 



