Origin: in Covina, Calif. Introd. in 1947. Parentage unknown; Mexican type; discovered in the early 1940s; propagated by Harry Mayo and promoted by Stuart Coulter. Tree: quite resistant to frost; upright grower; production extremely heavy and consistent; not grown commercially. Fruit: 4-8 oz; oval; skin light green with a tendency for brown blemishes, very thin, peels easily from flesh; season early October through November; rather low oil content by California standards, but seems to taste good at 7% and will obtain at least 10% oil content.