On the occurrence of tuliposides in the liliiflorae

Approximately 200 samples of liliiflorous plants were investigated for the presence of tuliposides. Appreciable amounts of tuliposide A were detected in all species of Erythronium, Tulipa, Gagea, Bomarea and Alstroemeria. Large amounts of tuliposide B seem to be restricted to Erythronium and Tulipa. The occurrence of identical post-inhibitins in Tulipa and allied taxa and in Alstroemeria and allied taxa is interpreted as indicating a close relationship between Lilioideae and Alstroemeriaceae. At the same time the allergenic potentialities of all taxa of Alstroemeria are stressed.