Origin: in Davis, Calif., by M.N. Wood (1883 to 1953), U.S. Dept. of Agriculture, and W.P. Tufts, California Agr. Expt. Sta. Introd. in 1938. Nonpareil × Harriott; cross made in 1926; first crop in 1930; selected in 1932; tested as Calif. 8/31; sibling of Jordanolo. Nut: large; generally elliptical; hulled nut plump; shell soft, outer shell very thin, often spongy or crumbly, medium brown; inner shell very thin, hard; Kernel: large, sometimes produces doubles, moderately plump, wide ovate, blanches well; pellicle: rather light to medium brown, rather thick and tough; easily harvested and hulled; quality not as good as Jordanolo. Tree: vigorous; bears heavily but not as regularly as Jordanolo; not as susceptible to brown rot as Drake; blooms early after Jordanolo; pollen compatible with Ne Plus Ultra, I.X.L., Peerless, Nonpareil, Drake, and Mission; incompatible with Jordanolo. The name Harpareil is coined from its parents’ names. Very susceptible to noninfectious bud failure. Fruit: