XANTHOPHYLL 



199 



Ranunculus arvensis 



Ranunculus Steveni 

 Rudbeckia Neumannii 



Sarothamnus scoparius 



Tagetes erecta T. 



Tagetes grandiflora 

 Tagetes nana 

 Tagetes patiila 

 Taraxacum officinale 



Tragopogon pratensis 

 Trollius europaeus 

 Viola tricolor 

 Winter asters 



References 

 P. Karrer and A. Notthafft, Helv. chim. Acta 15 

 (1932) 1195. 



H. H. EscHER, Helv. chim. Acta 11 (1928) 752. 

 R. KuHN, A. WiNTERSTEiN and E. Lederer, Z. 

 physiol. Chem. igj (1931) 141. 



P. Karrer and E. Jucker, Helv. chim. Acta 2^ (1944) 

 1586. 



R. KuHN, A. WiNTERSTEiN and E. Lederer, Z. 

 physiol. Chem. igy (1931) 141. 

 do. 

 do. 

 do. 



P. Karrer and H. Salomon, Helv. chim. Acta 13 

 (1930) 1063. — P. Karrer and J. Rutschmann, Helv. 

 chim. Acta 25 (1942) 1144. — R. Kuhn and E. 

 Lederer, Z. physiol. Chem. 200 (1931) 108. 

 P. Karrer and A. Notthafft, Helv. chim. Acta 13 

 (1932) 1195. — P. Karrer and co-workers, Helv. chim. 

 Acta 28 (1945) 1146. 



P. Karrer and A. Notthafft, Helv. chim. Acta 13 

 (1932) 1195. — P. Karrer and E. Jucker, Helv. 29 

 (1946) 1539. 



R. Kuhn and A. Winterstein, Ber. 64 (1931) 326. — 

 P. Karrer and co-workers, Helv. chim. Acta 25 (1942) 

 1624; 2j (1944) 1684. 



P. Karrer and E. Jucker, Helv. chim. Acta 26 (1943) 

 626. 



b) Fruit: 

 Ananas sativus 

 Arbutus 

 Capsicum annuum 



Citrus aurantiutn 

 Citrus madurensis 



Convallaria majalis 



Cranberries 



Cucurbita maxima 



Luffa-species 

 Mangifera indica 

 Moniordica Balsamina 



O. C. Magistad, PlayU. Physiol. 10 (1935) 187. 



K. ScHON, Biochem. J. 2g (1935) 1779. 



L. Zechmeister and L. v. Cholnoky, Ann. sog 



(1934) 269. 



L. Zechmeister and P. Tuzson, Ber. 6g (1936) 1878. 



L. Zechmeister and P. Tuzson, Z. physiol. Chem. 



221 (1933) 278; 240 (1936) 191. 



A. Winterstein and U. Ehrenberg, Z. physiol. 

 Chem. 2oy (1932) 25. 



H. Willstaedt, Svensk Kemisk. Tidskr. 48 (1936) 212. 



H. SuGiNOME and K. Ueno, Chem. Centr. igji, II, 



2892. — L. Zechmeister and P. Tuzson, Ber. 6j 



(1934) 824. 



T. N. Godnew and S. K. Korschenewsky, Chem. 



Centr. igji, I, 1299. 



R. Yamamoto, Y. Osima and T. Goma, Chem. Centr. 



1933, I, 441. 



G. and F. Tobler, Ber. bot. Ges. 28 (1910) 365, 496. — 



B. M. DuGGAR, Washington Univ. Stud, i (1913) 22. 



