3i6 



[45S 



References to the Flora are in brackets [ ] 



Trumpet flower [210] 



TUBIFLORALES [l94] 



Tumbleweed [134] 



Turnip [ 144] 



Turtle-head [207] 



Typha 12, 29, [83] 



latifolia 19. 28, 29, [83] 



Typhaoeae [83] 



Udora [84] 



Canadensis minor [84] 



TTliglnosae 30 



agrostidoides 30 



ambrosioides 33 



caricoides 31 



caricinae 31 



cyperinae 31 



coreopsidoides 32 



juncoides 31 



polygonoides 31 



Uliginose plants 30 



' 25] 

 25] 



Ulalaceae 



Ulmus 38, 



Americana 



8, 25, 34, 41, 45, 48, 



fulva 25, 34, 41, 45, 58, 



lacemosa 25, 34, 



Umbelliperae 20, 35, 



Umbelliflorales 



Umbrella-wort 



Uniola 



latifolia 36, 46, 59, 



Urtica 



dioica 



gracilis 36, 



Urticaceae 



Urticalbs 



Urticastrum 



divaricatum 



Uvularja 39, 



grandiflora 46, 



Vaccinium 



vacillans 60, 



Vag'nera 



racemosa 



stellata 



Valerian, Greek 



Valerian family 



Valerianaceae 



Valerianella 



ciienopodifolia . . 



radiata 23, 



Validallium 



tricoccum 



Velvet leaf 



Venus' looking-glass 



Veratrum 



viride 



25] 



25] 

 25] 

 84] 

 84] 

 34] 

 96] 

 96] 

 26] 

 27] 

 27] 

 26] 



25] 

 27] 

 27] 

 ■3] 

 13] 

 89] 

 89] 

 IS] 

 IS] 

 IS] 



96] 

 215] 



215] 



215] 

 253] 

 215] 

 113] 

 113] 

 175] 

 217] 

 113] 

 247] 



Woodii 47, 59, [112], 



Verbascum 67, 



Blattaria 



Thapsus 55t 69, 



Verbena 32, 69, 



angustifolia 



Aubletia.43, 47, 52, 62, 65, 



bracteosa 



Canadensis 



hastata 



striata 55, 64, 



urticifolia 



Verbena, wild 



Verbenaceae 32, 



Verbesina 



alternifolia 



Vernonia 2, 69, [218], 



acauhs 



altissima [220], [222], 



^randijiora 221, 



marginata 



pubescens 



altissima [260], 



angustifolia 



puTnila 



scaberrima 



Texana 



Arkansana [218], 



Baldwinii 55, [218] 



[219], [220], [221], 



Blodgettii 



chrysopappa [222], 



corymbosa 



crinita [218], 



Drummondii 



29, [220], [221], [222], 



X V. interior 



Duggariana [218], 



fasciculata [223], 



corymbosa 



fasciculata 



flaccidifolia 



flavipapposa [218], 



gigantea 



praealta 



gigantea [222], 



glauca 



graminifolia 



Guadalupensis 



Harperi 



Illinoensis 



interior 



5S. [220], [221], [222], 



Baldivinii 



Jamesii 



Lettermanii 



Lindiieimeri 



