Syncephalis, 543. 
Sycopodium, 57. 
Synedra, 412, 502. 
Syrrhopodon, 215, 314. 
Systephania, 502. 
Tabellaria, 412. 
Talinella, 178. 
Talinopsis, 178. 
Talinum, 178, 324. 
Tapesia, 281. 
Targionia, 515. 
Taraxacum, 480. 
Taxus, 451. 
Teichospora, 127, 278, 323, 459. 
Tephrosia, 266. 
Tetraplodon, 367. 
Teucrium, 156, 163, 490. 
Thalesia, 313, 540. 
Thallocarpus, 322. 
Thalloidima, 238. 
Thamnium, 314, 586. 
Thamnolia, 241. 
Thaspium, 164. 
Thelocarpon, 239. 
Thelephora, 206. 
Theloschistes, 239. 
Thelotrema, 239. 
Thermutis, 240. 
Therofon, 247. 
Thielavia, 506. 
Thlaspi, 343. 
Tholurna, 238. 
Thuidium, 214, 215, 427. 
Thyronectria, 458, 467. 
Thysanella, 47, 167. 
Thysanothecium, 239. 
Tilia, 280, 288. 
Tillandsia, 163. 
Tilmadoche, 342. 
Tissa, 284. 
Tolypothrix, 538. 
Tolysporella, 537. 
Toninia, 238. 
Tormentilla, 10. 
Torula, 481, 539. 
Toxylon, 440. 
Tradescantia, 164, 228, 327, 487, 560. 
Tragopogon, 474. 
Trametes, 340. 
Tremellodon, 340. 
Trevoria, 485. 
Tribulus, 207. 
Triceratium, 502, 504. 
Trichia, 69, 342. 
Tricholoma, 139, 326, 
Trichomanes, 58. 
Trichosteleum, 215. 
Trichopeziza, 467. 
Triclinum, 577. 
Trifolium, 162, 251, 461, 568. 
mY: 
Trillium, 169, 327, 450. 
Tripsacum, 96, 583. 
Triumfetta, 208. 
Trogia, 340. 
Tsuga, 61, 437. 
Tubercularia, 458, 510. 
Tubulina, 69, 342. 
Tylophoron, 238. 
Typha, 542. 
Ulmus, 39, 289, 330- 
Umbilicaria, 239. 
Uncaria, 539. 
Uncinula, 484. 
Uragoga, 60 
Urceolaria, 239. 
Uredo, 209, 284, 323, 391. 
Uroglena, 166 
Uromyces, 209, 282, 323, 540, 591. 
Urtica, 191, 326. 
Usnea, 239, 341- 
Ustilago, 86, 162, 162, 282, 457. 
Vaccinium, 25, 31, 64, 251, 353; 407, 441, 
570. 
Valeriana, 60. 
Valsa, 132, 280, 323. 
Valsaria, 280, 362. 
Varicellaria, 239. 
Vaucheria, 485, 539- 
Velezia, 165. 
Veratrum, 424. 
Verbascum, 286. 
Verbesina, 212. 
Vermicularia, 370. 
Vernonia, 58, 208. 
Verrucaria, 240, 448, 539. | 
Vesicaria, 247. : 
Viburnum, 27, 211, 324, 454, 569, 573. 
Vicia, 490. 
Viegaria, 56. 
Villaresia, 80. 
Viola, 92, 163, 211, 404, 494, 569. 
Vitex, 333. 
Vitis, 364, 570. 
Waldsteinia, 176. 
Webera, 215. 
Weisia, 214. 
Wistaria, 48. 
Woodsia, 352. 
Xanthiopyxis, 503. 
Xanthium, 574. 
Xanthoria, 239. © 
Xanthoxylum, 280. 
Xolisma, 24. 2 
Xylaria, 470. ; 
Xylographa, 238. 
Yucca, 273. 
