Tillza, 68. 
Tillandsia, 33, 66, 261, 279. 
Tinus, 60. 
Tissa, 54, 91, 234. 
Tithonia, 62, 384. 
Totieldia, 63, 245. 
Topobea, 279. 
Tounatea, 135. 
Touroulia, 138 
Tovara, 63. 
Tovaria, 63. 
‘Toxicodendron, 55. 
Tradescantia, 90, 138, 384. 
Tragacantha, 54. 
Tragus, 64. 
Triactina, 307. 
Tribulus, 9.. 
‘Trichlora, 64. 
Trichloris, 64,99- 
Tricholoma, 25. 
‘Trichomanes, 138. 
Trichospira, 150. 
Trichostelium, 70. 
Trichostomum, 275. 
Tridax, 151. 
Trientalis, 184, 243. 
Trifolium, 9, 209, 234, 240, 258. 
Triglochin, 246. 
Trillium, 168. 
Triodia, 65, 91, 99» 385. 
Triplaris, 343. 
Triplasis, 91. 
Tripsacum, 64, 131, 164. 
Tripterocladium, 7, 8. 
Trisetum, 99, 386 
Triteleia, 348. 
Tritellaria, 234. 
Trixis, 266. 
Tropzolum, 2098. 
Tropeolum, 232. 
Troposporium, 321. 
Troximon, 58, 243. 
Tryblidiella, 198. 
Tsuga, 231, 281. 
Tulipifera, 53. 
Tupa, 37}. 
Tussilago, 140. 
Tylimanthus, 198. 
Ulmaria, 57. 
Ulmus, 30, 268, 332, 376. 
Ulota, 168, 247, 318. 
othrix, 278. 
eewine aes 281. 
ngnadia, 383. 
Unifolium, ce. 
Uragoga, 58. 
Uraspermum, 57. 
Urera, 232. 
Urocystis, 277. 
Uromyces, 97, 235. 
Urospermum, 58. 
Urticastrum, 62. 
XV 
Usnea, 180, 
Ustilago, 95- 
Utricularia, 89, 91, 194. 
Uvifera, 62. 
Vaccinium, 140, 181, 245. 
Valeriana, 183, 223, 242, 384. 
Valerianella, 242. 
Valsaria, 162, 108. 
Vaucheria, 75, 119. 
Veratrum, 183, 245, 312. 
Verbascum, 10, 143, 260. 
Verbena, 45, 98, 193, 381- 
Verbesina, 70, 150, 384. 
Vernonia, 58, 67, 383. 
Veronica, 98, 133, 244- 
Vesicaria, 53. 
Vexillum, 159. 
Viburnum, ag 181, 235, 242, 331- 
Viburnites, 389. 
Vicia, 9, 45. 
Vigna, 384. 
Viguiera, 149, 233- 
Villanova, 151. 
Vinca, 87. 
Viola, 82, 89, 240, 376, 384. 
Vitis, 31, 331, 380. 
Vitex, 50. - 
Volvulus, 61. 
Vriesia, 262. 
Wahlenbergia, 374. 
Walchia, 197. 
Waluewa, 262, 277. 
Washingtonia, 64, 160 
Webera, 79, 100, 247. 
Wedelia, 149- 
Werneria, 265. 
Williamsonia, 160. 
Willoughbya, 59. 
Wistaria, 56. 
Wittmackia, 68. 
Woodwardia, 2&9. 
Wulfia, 149. 
Xanthidium, 122, 319. 
Xanthium, 10, 46, 138, 144, 149- 
Xanthocephalum, 346, 384. 
y, 1 50. 
Xyris, 35, 260. 
Yucca, 261, 278, 324. 
Zaluziankya, 65. 
Zamia, 196. 
Zea, 65, 380. 
Zexmenia, 149, 233- 
Zinnia, 58. ‘ 
Zygia, 56. 
Zygodon, 275, 392+ 
Zygopetalum, 324. 
