Rios, r.. A. Ronu) dc Vi\;ii and .1. Romo. 1967. Stc\iii, a new pseudogua- 



ianolidc isolated from Sicvia r/n)i)ihi/olia HBK. 'I'ctrahcdron 23: 4265 

 4269. 



Robinson, B. 1.. 1930a. 'I he Stc\ias of the Argentine Republic. Conn. Gray 



Herb. 90: 5H 79. 



1930 b 



I he Sie\ias ot l'aragua\. Conli. (irav Herb. 90: 79 90. 



I93()c. Tlic Sic\ias dC North America. Contr. Cirav Herb. 90: 



90 159. 



1931a. The Slc\ias of Colombia. Contr. Gra_\ Herb. 96: 28 36. 



1931b. Ihe Sievias of V'eiKvuela. CotUr. (iray Herb. 96: 37 43. 



1931c. The Stevias of Fcuador. Contr. Gray Herb. 96: 43 49. 



1932a. Ihe Stevias ol Wvu. Contr. Gray Herb. 100: 20 36. 



1932b. I he Ste\ias of Boli\ia. Contr. Gray Herb. 100; 37 69. 



F<odrigiic/, F.,(i. H. N. Towers and J. C. MitchelL 1976. Biological acti\i- 



ties of sesquiterpene lactones. IMi\tochemistry 15: 1573 1580. 

 Rodriguez. F. 1977. Sesquiterpene lactones: chemota.\onomy. biological 



activity and isolation. Rex. I,aiinoamer. Quim. 8: 56 62. 

 Roig y Mesa, .1. T. 1953. Diccionario Boianieo de Nonibres Vulgares 



Cubaiios, \i)l. I. p. 381. Seoane, Fernandez \ Cia. 

 Ruiz. F. F. 1905. Descripcion botanica de la \erba del borrego (Sicvia 



cupatoria). An. Insl. Med. \ac. (Mexico) 7: 5. 

 Sahagiiiu F. B. de. 1961. Florentine Codex: General History of the Things 



ol New Spam, Fdited and translated b\ A. J. I). Anderson and C. E. 



Dibble. Monograph No. 14, part IF p. 152. Ihe school of American 



Research and the Fniversity o\ FUah, Santa Fe. New Mexico. 



1963. Florentine Codex: (icneial Histor\ of the Things of New 



Spain. Monograph No. 14. part 12, pp. 167, 178, 197. 



Sakaguchi, M. and T. Kan. 1982. As pesquisas Japonesas com Sicvia 



Rchauiliafia (Bert.) Berloni e o este\ iosideo. Cienc. Cult. 34: 235 248. 



Salmon. \F. F. Diaz and A. Ortego. 1973. Chrislinine, a new epoxy- 



guaianohde from Sicvia scrraia Caw J. Org. Chem. 38: 1759 1760. 



Salmon, M., F. Diaz and A, Ortego. 1977. Epoxilactonas de Sicvia scrrata 



C\iv. Rev. Fatinoamer. Quim. 8: 172 175. 



Scluiltes, R. F. 1962. I he role t)l the ethnobolanisl in the search for new 



medicinal plants. Flovdia 25: 257 266, 



Sesse, M. and .F M. Mocino. 1893. F^lantae Novae Hispaniae, p. 120. Ofi- 



cina 1 ipografica de la Secretaria de Fomento. Mexico. 



Soejarto, D. [).. C. M. Compadre, P. J. Medon, S. K. Kamath and A. D. 



Kinghorn. 1983. Potential sweetening agciits of plant origin. U. Field 

 search for sweet-tasting Sicvia species. Fcon. Bot. 37: 71 79. 



Soukup. .F 1970. Vocabulario de los Nombres Vulgares de la Flora Peru- 

 ana, Colcgio Salesiano, Fima. p. 329. 



Slichcr, O. 1977. Plant mono-, di-and sesquiterpenoids with pharmacolog- 

 ical or therapeutical activity. /// New Natural Products and i'lanl Drugs 

 with [Pharmacological. Biological or Iherapeulical Activity, H. Wagner 

 and P. Woin, eds., p. 137 176. Springer-Verlag, Berlin, New York. 



Sumiila, I". 1973. Reports on Sicvia Rchaiu/iana Bertoni iiUrtuluced from 



[irazil as a new sweetness resource in Japan. Miscell. Publ. Hokkaido 

 Natl. Agr. i:xp. Sta. No. 2. p. 69 83. 



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