XI 



Spergularia, 131. 



pha;ralcea, 80, 244, 246, 263. 

 Sphaerella, 81, 

 Sphseropsis, 215, 

 Sphaerozosma, 41. 

 Sphagnum, 296. 

 Spilanthes, 79. 

 Spinacea, 95, 266, 

 Spiraea, 291, 314, 325. 

 Spiranthes, 70. 

 Spirocoleus, 19. 

 Spirogyra, 115, 116, 121. 



Spironema, 108. 



Sporidesmium, 265, 



Sporobolus, 71. 80, 246. 



Sporotrichum, 322. 



Stachybotrys. 322. 



Stachys, 41. 



Staphylea, 45, 137. 



Staurastrum, 41, 



Stella, 132. 



Stellaria. 34, 38, 69, 157, 172, 268. 



Stemodia, 80. 



Stenostephanus, 265, 



Streptanthus, 291. 



Streptopus, 318. 



Sticta, 182. 



Stigmatomyces, 165. 



Stipa, 184. 



Straggaria, 19. 



Stramonium, 179. 



Streptopus, 318. 

 Strophostyles, 265. 



Stylophorum, 166. 

 Styrax, 188. 

 Subularia, loi, 102. 



Swietenia, 330. 

 Symphoricarpus, 188. 

 Synchytrium, 25, 108. 



Tacoanthus, 223. 



Tacsonia, 281. 



Talinum, 312. 



Tanacetum, 34. 



Taenia, 300. 



Taphrina, 290 



Taraxacum, 34. 



Taxodium, 19, 42, 44, 128, 135. 



Taxus, 31. 



Tecoma, 245. 



Tephrosia, 80, 164. 



Terminalia, 245. 



Tetragonia, 79, 



Tetraphls, 126, 



Tetraplacus, 223. 



Teucrium, 328. 

 Thalictrum, 24. 32, 96. 

 Thamnosma. 263. 

 Thelia, 222. 

 Thelypodium, 68, 246. 

 Theobroma, 47. 

 Thisma, 24. 

 Thrinax, 81. 

 Thuidium, 222, 277. 

 Thuja, 29, 65, 126. 

 Thurberia, 207. 

 Tiarella, 192, 

 Tibouchina, 54. 

 Tigridia, 81. 

 Tiiia, 140, 330. 

 Tillandsia, 135, i8g, 290, 

 Tilletia, 47, 188, 299. 

 Tissa, 28, 131, 



Tococa, 94. 



Tournefortia, 179, 



Tradescantia, 108, 117, 120, 121, 125. 



Tragopogon, 176, 237, 238, 244. 



Trapa, 41, 322. 



Trematodon, 84, 100. 



Trichodon, 88. 



Tricholoma, 322. 



Trientalis, 137, 



Trifolium, 31, 34, 46, 140, 201. 



Triglochin, 28, 174. 



Trillium, 23, 32, 137, 13S, 166, 224, 299. 



Triodia, 246. 



Triosteuin, 70. 



Triplaris, 223. 



Trisetum, 246. 



Triteleia, 158. 



Triumfetta, 268. 



Tropa;olum, 79. 



Troximon, 167. 



Tsuga, 81. 



Tubercularia, 323. 



Tuomeya, 189. 

 Turnera, 246, 281. 

 Tylodendron, 80. 

 Tylostoma, 130. 



UUucus, 79. 

 Ulmus, 183, 264. 

 Uncinula, 2^9. 

 Underwoodia, 323. 

 Unifolium, 25. 



Uniola, 184. 



Urocystis, 130. 



Uroglaena, 135. 



Uromyces, 239. 



Uropyxis, in. 



Urtica, 76, 248 



Ustilago, 47, 130, 188, 298. 



Utricularia, 33, 39, 52, 70, 116, 173, 174, 245, 287 



Vaccinium, 27, 45, 104, 295, 319. 

 Vaginaria, 3, 

 Vallesia, 80. 

 Vancouveria, 185. 



Vaucheria, 112. 



Veratrum, 33, 71. 



Verbascum, 31. 



Vermicularia, 130, 265. 



Veronica, 31, 32, 96, 124, 137, 139, 190. 



Viburnum, 47, no, in, 138, 140. 



Vicia, 29, 82, 291. 



Viguiera, 80. 



Vinca, 183. 



Viola, 38, 82, 123, 137, 168, 224. 



Vitis, 43, 236, 269, 290, 294. 



Washingtonia, 327. 

 Webera, 222, 273. 

 Weinmannia, n, 223. 

 Weissia, 84. 

 Woodsia, 30, 32, 139. 



Xanthidium, 20. 

 Xanthoxylum, 165, 330. 



Yucca, 25, 80, 224, 332. 



Zephyranthes, 80, in. 

 Zi/ania, 71, 171. 



Zizyphus, 42. 

 Zonaria, 299. 

 Zygodesmus, 151. 



