Diterpenes acycliques de cystoseiracées (phéophycées) de la côte méditerranéenne

Abstract
A set of mediterranean brown algae belonging to Cystoseira family is analysed by a G. L. C. and I. R. method. Easy determination of diterpenic compounds is presented. Among all the samples analysed, the only one Cystoseira elegans contains eleganolone, epoxy eleganolone and elegandiol as the atlantic Bifurcaria bifurcata.