Euryopsol, isolated from the resin of Euryops spp., has been shown to be 1α,6β,10β-trihydroxyfuranoeremophilane. Euryopsol, C15H22O4, m.p. 173-174°, occurs together with euryopsonol, C15H20O3, m.p. 230-231°, in the unsaponifiable fraction of the resin of Euryops floribundus (Compositae).1* We have also obtained the former from E. tenuissimus. © 1969.