CONSTITUENTS OF THE BIOSPHERE 33 



CHa CH, CH. CHj 



\ / \ / 



C CH3 CH^ CHa CHj C 



/ \ I I I I / \ 



CH, CCHi^CH C=CHCH = CHC = CHCH=:CHCH=:C CH = CHCH=C CH = CHCH CH, 



I |\ II 



O H,CC CH, 



11/ \ / 



CH. C CH 



\ / \ 

 CH, CH, 



a-Carotenepoxide 



CH, CH, Cri3 CH, 



\ / \ / 



C CH= CH, CHs CH, C 



/ 1 I I I \ 



CH CHCH=:CH C = CHCH=CHC=CHCH=CHCH=CCH=:CHCH = CCH=CHCH CH 



I il II I 



CH, CCH. HjCC CHOH 



\ / ^ -^^ 



CHa • ^"' 



Lycoxanthin 



CHj CHs CHi CHj 



\ / \ / 



C CH, CH, CH, CH, C 



/ I I I I \ 



CH CHCH = CHC=CHCH=:CH C = CHCH = CHCH = C CHr=CHCH = CCH = CHCH CH 



I !! I! I 



HOCH CCHa H,CC CHOH 



\ / \ / 



CH, CH. 



Lycophyll 



CH. CR, 



\ / 

 CHs CH, CH, CH, CH 



! • I II \ 



CHo CHCHnCHC=CHCH = CHC = CHCH = CHCH = CCH = CHCH = C CH = CHCH CH, 



II I 



H,CC CGCHi 



\ / 

 CH 



Rhodcviolascin (?) 



CH, CH, CH, CH, 



\ / \ / 



C CH, CH, CH, CH. C 



/ \ I I I ' \ 



CH2 CCH=:CHC=CHCH=:CHC=iCHCH=rCHCH = C CH = CHCH=CCH = CH CH CH 



II II I 



HOCH CCHa H,C C CH, 



\ / \ / 



CH. CHj 



Rubixanthin 



D 



