Index to Genera. 



517 



Rivina 457 

 Rondeletia 427 

 Rousselia 466 

 Rudbeckia 177 

 Ruellia 452 



Sabal 471 

 Saccharum 475 

 Sagittaria 240, 472 

 Salix xlviii, lxviii, 137 

 Salsola lxvi 

 Salvia 455, 482 

 Sanguinolites 368 

 Sapium 464 

 Sarcophaga 155, 176 

 Sauvagesia 400 

 Savia 461 

 Scatophaga 155 

 Scepsis 176, 178 



Schmidelia 482 



Schultesia 442 



Schwenkia 448 



Sciadophyllum (427) 



Scleria 474-5 



Scolia 175, 177-8 



Scoparia 449 



Sebastiania 464 



Securidaca 401 



Selaginella 479 



Senecio 239 



Seoptera 158 



Sericosomus 167 



Serjania 409 



Sesbania 411 



Sesia 179 



Sesuvium 426 



Setaria 234, 476 



Sida 401 



Silphium 176 



Siphonella 168 



Siphona 172, 176, 179 



Siphophyto 179 

 Siphoplagia 176 

 Siratus (380) 

 Sistrum 389 

 Smilax 470 



Solanum lxvi, 239, 447- 

 Solea 156 

 Solidago 240 

 Sophora 415 

 Sorghum 231, 233 



Sorosporium 229, 234, 240 

 Sparganophorus 432 

 Spamopolius 175, 177-8 

 Spermacoce 431 

 Sphaerodoma 367 

 Spbaerophoria 175, 179 

 Sphecodes 175, 316-321 

 Sphenotus 368 

 Spigelia 442 

 Spilomyia 176 

 Spiraea 165-6, 170 

 Spiranthes 468 

 Spirifer 363 

 Spirifera 367 

 Spiriferina 363 

 Spirorbis 363 

 Spondias 410 

 Sporobolus 232, 477 

 Stachytarpheta 453 

 Stemodia 449 

 Stenandrium 452 

 Stenostomum 429 

 Stenotaphrum 477 



Stigmaphyllon 406 



Stramonita 388 



Straparollus 367 



Strophalosia 363 



Strophomena 367 



Stylogaster 170 



Stylosanthes 163-5, 170, 412 



Suriana 407 



Symbathocrinus 367 



Symphoricarpos 172-4 



Symphynota (8, 58) 



Synedrella 434 



Synhalonia 156, 159, 160, 162, 165, 

 353 



Syringothyris 363, 367 



Syritta 176, 179 



Syrphus 153-5, 158, 175, 178 



Systoechus 177-8 



Systropus 175 



Tabebuia 450-1, 460 

 Tabernaemontana 440 

 Tamarindus 418 

 Tantilla 501 

 Taonurus 363 

 Taxocrinus 367 

 Taxodium lxxiv 

 Tecoma (450) 451 



