Roscngarten. F. 1977. Bot. Mus. Leaflets, Harvard University 25 (7): 



184 215. 

 Schultcs. R. E. 1957. ihitl. 17 (9): 247 264. 

 Snead.O. C. 1978. Neurology, July, 636 641. 

 Standley, P. C. 1930. Field Mus. Nat. Hist. 3: part 3, 354. 

 Sulser, H. ei al. 1972. Zeit. Lebensm. Untersuch.-Forsch. 148: 215-220. 

 Takahashi. K. ei al. 1976. Agr. Biol. Cliem. 40 (2):325-330. 

 Tokimoto, Y. e{ al. 1980. Proc. Japan Acad. 56, Ser. B (7): 457 462. 

 Vischer, W. 1919. Bull. Soc. Bot. Geneve, Ser, 2: 1 1 . 

 Wasson, R. G. 1982. Personal Communication. 

 Wieland, T. ('Z fl/. 1968. Ann. Chem. 717; 205. 



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