160 



Sporobolus, 65 

 Sporocybe, 53 

 Sporotrichum, 32 

 S|i\ ridia, 16 

 Stachyobotrys, 32 

 Stachys, 133 

 Staphylea, 114 

 Staurastrum, 3 

 Stauroneis, 24 

 Steironema, 126 

 Stemonitis, I 

 Stenophyllus, 70 

 Stereodon, 56 

 Stereum, 36 

 Stichococcus, 5 

 Sticta, 47 

 Stilophora, 10 

 Stipa, 65 

 Streptococcus, 26 

 Striaria, 9 

 Striatella, 21 

 Strobilomyces, 39 

 Strophostyles, no 

 Stylosanth.es, 107 

 Surirella, 26 

 Symphoricarpos, 141 

 Symphytum, 131 

 Synchytrium, 27 

 Syndesmon, 95 

 Synedra, 22 

 Syntherisma, 63 

 Syringa, 127 



'PABELLARIA, 21 

 -*- Tanacetum, 153 

 Taraxacum, 143 

 Taxus, 60 

 Tecoma, 138 

 Terpsinoe, 21 

 Tetraspora, 4 

 Teucrium, 131 

 Thalesia, 138 

 Thalictrum, 96 

 Thaspium, 121 

 Thelephora, 37 



Thelia, 56 



Theloschistes, 44 

 Thlaspi, 97 

 T ilia, 115 

 Tissa. 93 

 1 huidium, 54 

 Thuja, 60 

 Toxylon, 85 

 Tradescantia, 75 

 Trametes, 38 

 Trapopogon, 143 

 Tremella, 36 

 Trentepohlia, 6 

 Triadenum, 116 

 Triceratium, 20 

 Trichia, 1 

 Trichocolea, 48 

 Triclioloma, 42 

 Trichostema, 131 

 Trientalis, 126 

 Trifolium, 107 

 Triglochin, 62 

 Trillium, 78 

 Triosteum, 141 

 Tripsacum, 63 

 Trollius, 94 

 Tsuga, 60 

 Tubercularia, 33 

 Tubulina, I 

 Tunica, 91 

 Tussilago, 153 

 Typha, 61 



TjLMUS, 85 

 ^ Ulota, 51 

 Ulothrix, 6 

 Ulva, 6 

 Uncinula, 29 

 Unifolium, 78 

 Uredo, 36 

 Uromyces, 35 

 Urtica, 86 

 L'rticastrum, 86 

 Usnea, 46 

 Ustilago, 34 



(Jstulina, 31 

 (Jtricularia, 138 

 Uvularia, 77 



TTACCARIA, 91 

 ' Vaccinium, 125 



Vagnera, 78 

 Valeriana, 142 

 Vain ianella, 142 

 \'allisneria, 62 

 Valsa, 31 

 Vaucheria, 8 

 \eratrum, 77 

 Verbascum, 135 

 Verbena, 131 

 Vernonia, 145 

 Veronica, 136 

 Viburnum, 141 

 Vicia, 108 

 Vinca, 128 

 Viola, 117 

 Vitis, 115 

 Volvox, 4 



^yASHINGTONIA,i2i 



' Weisia, 49 

 Willughbaea, 146 

 Woodsia, 57 

 Woodwardia, 58 



V"ANTHIDIUM, 3 

 '**" Xanthium, 145 

 Xanthorrhiza, 94 

 Xanthoxylum, III 

 Xolisma, 124 

 Xylaria, 32 

 Xyris, 75 



7ANNICHELLIA, 62 

 *-^ Zizania, 64 

 Zizia, 122 

 Zostera, 62 

 Zygnema, 4 

 Zygogonium, 4 



