INDEX 



217 



Spermolepis 160 



Sphenopholis 32 



Spiranthes 50 



Sporobolus 44 



Spirodelia 16 



Stachys 120 



Stanleya 60 



Staphylea 153 



Staphyleaceae 153 



Steironema 93 



Stenosiphon 148 



Stenophyllus 18 



Stenotus 172 



Stephanomeria 194 



Stipa 46 



Strawberry 125 



Strobilophyta 5 



Strophostyles 139 



Sumach 155 



Sun-flower 182 



Symphoricarpos 165 



Syndesmon 54 



Syntheris 113 



Syntherisma 41 



Talinum 70 



Taraxicum 194 



Tea, New Jersey 152 



Tetraneuris 187 



Teucrium 118 



Thalamiflorae 51 



Thalesia 115 



Thalictrum 53 



Thaspium 161 



Thelesperma 184 



Thelypodium 60 



Thermopsis 131 



Thistles 192 



Thlaspi 60 



Tickseed 183 



Tiliaceae 89 



Timothy 44 



Toadflax Ill 



Townsendia 174 



Tradescantia 13 



Tragopogon 194 



Triadenum 87 



Tribulus 82 



Tricuspis 34 



Trifolium 132 



Triglochin 7 



Trillium 12 



Triosteum 165 



Triplasis 34 



Tripsacum 48 



Tumble-weed 71, 74 



Turritis 63 



Typha 16 



Typhaceae 16 



Ulmaceae 90 



Ulmus 90 



Umbellales 158 



Umbelliferae 158 



Urtica 91 



TJrticaceae 91 



Urticastrum 92 



Utricularia 115 



\accaria 66 



Vagnera 12 



Velvet leaf 90 



Venus' looking-glass 167 



Verbascum Ill 



Verbena 116 



Verbenaceae 116 



Verbesina 183 



Vernonia 168 



Vernonieae 168 



Veronica 113 



Vervain 117 



Vetch 141 



Viburnum 165 



Vicia 141 



Viola 87 



Violaceae 87 



Violets 88 



Violet, dog's tooth 11 



Virginia creeper 153 



Vitaceae 152 



Vitis 152 



Wake robin 12 



Walnut, black 155 



Washingtonia 160 



Water hemlock 161 



Water-parsnips 161 



Water-plantain 7 



Willow 69 



Wintergreen 95 



Wolf-berrv 165 



Wolffia 16 



Wormwood 189 



Xanthium 186 



Xanthoxylem 82 



Yucca 12 



Zannichellia 9 



Zizania 47 



Zizia 161 



Zygadenus 10 



Zygophyllaceae 82 



