502 ÍNDICE 



Spermacoie glabra Micli 41 



■• verbenoides Hook. y .Tacks 47 



Spilanthes arnicoides DC 341 



Staelia uruguaya Arecli 51 



Stenacliaenium megapotamioum Kaker ^ 267 



Stevia saturaefolia Sili-Eip ' 137 



Sylibum marianum Gaertu 413 



Symphoricarpus orbiculatus Moench 18 



Tagetes minuta L 363 



Tessaria absinthioides DC 263 



Thelesperma scabiosoides Less 344 



Trichocline incaua Cass 429 



Trixis ( Cleanthe ) Hieronymi Arech 448 



" Lorentzii ( Hier. )• Arech 446 



» stricta Less 440 



Valerianopsis salicariaefolia ( Vahl. ) O. A. Muell 73 



Verbesina australis Baker 338 



Vernonia mucrocephala Less 116 



megapotainica Spreng 124 



» rubricaulis Less 114 



Viguiera ancliusaefolia Baker 334 



Vittadinia trifurcata Griseb 213 



Xanthium canadense Mili 308 



» spinosum L 310 



