Abstract
A survey of floral anthocyanins among ten species of Puya shows the predominant pigment to be delphinidin 3,7,3′-triglucoside. This is the first report of the natural occurrence of this pigment in a non-acylated form. The occurrence of this unusual glucosylation pattern in Puya supports a close alliance between the Bromeliaceae and Commelinaceae.
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