Abstract
Eleven species and varieties of flowers of Compositae have been investigated for their carotenoid contents. Epoxy-carotenes and xanthophylls were found in fairly large amounts and were the main pigments in some cases. Carotenoid compositions are reported for the first time for flowers of Gerbera jamesonii, Hypochoeris radicata and Senecio scandens. Yellow flowers tended to have more xanthophylls while orange ones had a large amount of one carotene, except in Tagetes erecta where the only difference between the yellow and orange seemed to be in the total carotenoids. Lutein, universally present in leaves, was not always found in the flowers studied, while β-carotene was always found in fairly small quantities; flavoxanthin and chrysanthemaxanthin were usually present in fairly large amounts.
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