GENERIC INDEX 70 
Sida, 507 
Silene, 147, 487 
Sinningia, 148 
Sitanion, 233-235 
Smilacina, 614 
Smilax, 692 
Solanum, 147 
Solidago, 11, 584, 610, 618 
Spartina, 580, 581, 585, 591, 601, 616, 
620 
Spathularia, 100 
Sphacele, 495, 496 
Sphaeria, 432, 433 
Sphaerocarpus, 215, 217 
Sphaerocionium, 681 
Sphenopteridium, 443 
Spiraea, 181, 407 
Sporobolus, 289, 323, 371, 385, 577, 581; 
589, 600, 616, 618-620 
Spraguea, 486 
Stanleya, 252 
Staurastrum, 514 
Stegania, 677, 678 
Stenanthium, 27! 
Stenochlaena, 677, 678 
Stenophyllus, 580, 581, 592, 601, 617, 619 
Stenosemia, 679 
Stenotaphrum, 371, 384 
Stereum, 203 
Stictis, 86 
Stillingia, 323 
Stipulicida, 324 
Strepsilejeunea, 544, 560, 562 
Strophostyles, 582, 583, 617 
Struthiopteris, 677 
Stylosanthes, 294 
Symphoricarpos, 119, 497-500 
Syngramma, 677 
Syntherisma, 371, 378, 577, 581, 586, 619 
Synthyris, 278-281 
Syringa, 148, 152, 163, 511, 519, 525 
Taenitis, 674, 675 
Taxilejeunea, 562 
Taxodium, 287, 290, 32! 
Tectaria, 357, 679 
Teichospora, 84 
Tephrosia, 583 
Thalictrum, 83, 582 
Thallocarpus, 215 
Thamnopteris, 677, 678 
Theloschistes, 413 
Thelypodium, 253 
Thinfeldia, 444 
Thinnfeldia, 438-445 
Thysanocarpus, 253 : 
Tichosporium, 83, 84 
Tiedemannia, 403 
Tiedmannia, 403 
Tillandsia, 435, 436 
Tissa, 578 
ico) 
Tmesipteris, 682 
Tolypella, 176 
Torreya, 276 
Touterea, 236, 275-277, 280 
Toxicoscordion, 272, 273, 280 
Trachylejeunea, §44, $45, 555» 560-563 
‘lrachyphytum, 277 
Trametes, 227, 230 
Trautvetteria, 181 
Triadenum, 290 
Trichachne, 371, 378 
Trichomanes, 681 
Trichostema, 575, 577) 534, 609, 618-620 
Trifolium, 254, 503, 507 
Trillium, 294 
Triphlebia, 677 
Tripsacum, 373 
Triticum, 147 
| Tritonia, 144 
Tropaeolum, 143 
Troximon, 502 
Uniola, 372, 389 
Urceolaria, 416, 417 
Uredo, 4, 5 
Urnula, 87 
Uromyces, 13 
Urtica, 507, 692 
Usnea, 413 
Utricularia, 325, 328 
Uvularia, 294 
Vaccinium, 294, 580, 584 
Vagnera, 603, 614, 618 
Veratrum, 271 
Verbascum, 134, 145, 147, 584, 595, 596, 
609, 615, 617 
Vernonia, 294, 342 
Veronica, 278, 279 
Verrucaria, 417, 418 
Viburnum, 294, 341, 342 
| Vicia, 507 : 
| Vincetoxicum, 178, 179 
Viola, 10, 145, 292, 583, 607 
Vittaria, 674 
Waldsteinia, 180 
Wislizenia, 490, 491 
Woodsia, 357, 358 
Woodwardia, 320, 354, 677 
Wulfenia, 278-280 
Xanthochrous, 114, 120 
Xerophyllum, 181 
Xolisma, 284 
Xyris, 325, 326 
Yeatesia, 292 
Yucca, 84, 294 
Zingiber, 642 
Zygadenus, 271-273, 280, 483 
