Origin: in Davis, Calif., by E.F. Serr and H.I. Forde, California Agr. Expt. Sta. lntrod. in 1968. Conway Mayette × Payne. Cross made in 1952; selected in 1958; tested as UC 53-113. Nut: large; shell heavy, seal fair; kernel 50% of nut; 70% of those tested had light-colored kernels; matures midseason to late. Tree: leafs out 18 days after Payne; consistently produces many catkins and sheds pollen over a long period; can be used as pollenizer for most early varieties such as Ashley, Lompoc, Marchetti, Serr, Gustine, and Vina; can be used as a main producing variety where moderately late leafing is desired; very high summer temperatures have injured shell and kernel quality some years in hotter districts. Name was suggested in keeping with Spanish names for varieties that are good pollenizers. Fruit: