A variety of alkaline lavas from the Dunedin Volcano have been analyzed for the rare earth elements (REE) La-Yb. The compositions analyzed were: basalt-hawaiite-mugearitebenmoreite; basanite, nepheline hawaiite, nepheline trachyandesitc and ncpheline benmoreite; trachytc; phonolite. The series from basalt to mngearite shows continuous enrichment in the REE, consistent with a crystal fractionation model involving removal of olivine and clinopyroxene. From mugearite to benmoreite there is a depletion in the I~EE which is explained by the appearance of apatite as a liquidus phase. The chondrite normalized P~EE patterns for the phonolites are characterized by strong enrichment and fractionation coupled with a sharp depletion in Eu. Removal of plagioclase from benmoreite magma is suggested for the derivation of the phonolites. The series basanitc-nephcline hawaiite, and basanite-nephetine hawaiite-nepheline benmoreite appear to be high pH20 analogues of the series basalt-benmoreite, with enrichment of the REE being achieved by removal of clinopyroxene, kaersutite and olivine. Compared with other lavas the trachyte has low gEE abundances and is characterized by a striking positive Eu anomaly.