262 



INDEX. 



Page. 



Thyme-leaved Sandwort 69 



Speedwell 102 



Tiarella cordifoUa 12 



Tickseed 91 



Tick-Trefoil 74, 75 



Tilia 70,154 



Tiiiace£e 70 



Timothy 131 



Tin box for collecting, when useful 213 



How to carry 213 



Tipularia 120, 186 



discolor 20, 26 



Toad-Flax 1 01 



Tofleldia 123,188 



puhens 238 



Toothache Tree 71 



Tooth-cup 80 



Toothwort 65 



Touch-me-not 71 



Tower-Mustard 65 



Tradescautia 124, 189 



Trailing Arbutus 95 



Travel, Interest that botany lends to 56 



Trees, Number and distribution of 36 



How to collect 212 



Tre.matodon 140, 202 



Trichocolea 144,206 



Trichostema 104, 177 



lineare 13 



Trichostomum 141, 202 



Tricnspis 132, 196 



sesleroides 50 



Trifolium 74, 156 



Trillium 122, 188 



cemiuim 13 



sessile 23, 30, 33 



Triosteum 84, 163 



angustifolium 23 



Triple-awned Grass 131 



Tripsacum 136, 199 



dactyloides 24 



Trisotum 134, 197 



Triticum 134, 197 



Trowel, Garden, for collecting 213 



Trumpet Honeysuckle 84 



Vine 4fl 



Trumpet-tiower 103 



Trumpet- weed 85 



Tsuga 137, 199 



Canadensis 24 



Tule 126 



Tulip-Tree 48,63 



Tupelo 83 



Turkey -Oak 113 



Turk's-cap Lily 122 



Turtle-head 101 



Tussock Sedge 128 



Twayblade 120 



Twine, Importance of always carrying, when 



in the tield 215 



Twin-leaf 63 



Types, Cuvier's theory of 57 



Typha 117, 185 



Typhaceae 117 



Page. 



TJlmus 110,182 



Americana 29, 48 



fulva 28 



Umbelliferae ! 82 



Umbrella-Grass 125 



TJniola 134,197 



Upland Boneset 86 



Upper Potomac Kegion 21 



Upright Chess 133 



Urtica Ill, 182 



capitata 13 



Urticaceae 110 



' ' Use " of plants in the herbarium 237 



Utricularia 103, 176 



gibba 22 



minor 13 



Uvularia 122,188 



Vacciniaceae 52 



Vaccinium 94, Vtl 



corymbosum 30, 49 



stramimum 32, 49 



vacillans 49 



Valerian 85 



Valeriana 85, 164 



pauciflora 22 



Valerianaceae 51 



Valeriane® 51 



Valerianella 53, 85 



Vallisneria 119, 186 



Variances from descriptions, Habit of noting, 



useful 218 



Variegated Milkweed 97 



Vasey, Dr. George, Valuable aid rendered by 5 

 Revision by, of the forms of Panicum 



dichotomum 135 



Vegetable kingdom, Influence of the, in giv- 

 ing character to a landscape 47 



Velvet-Grass 134 



Velvet-Leaf 70 



Venus's Looking-Glass 94 



Pride 84 



Veratrum 122, 188 



viride 20 



Verbascum 101, 175 



nigrum 13 



Verbena 104, 177 



Caroliniana 13 



hastata 49 



urticsefolia 49 



Verbenaceas 103 



Verbesina 91, 168 



Siegesbeckia 49 



Vernal species 27-31 



Vernonia 85, 164 



Noveboracense 49 



Veronica 102,176 



officinalis 32, 49 



Virginica 49 



Vervaiu 103, 104 



Vetch 75,76 



VetchlLng 76 



Viburnum 83, 162 



acerifolium 49 



