Origin: in Placerville, El Dorado County, Calif., by Robert Patterson. Introd. in 1945. Considered to be an open-pollinated seedling of Bartlett; discovered in 1931; Patterson secured grafting wood from the original tree during 1935-40. Tree: growth habit similar to Bartlett. Fruit: large, sometimes larger than Bartlett; skin very smooth, greenish-yellow, not changing to yellow as does Bartlett upon ripening; flesh quality fair to excellent, depending upon time of harvest, storage, and ripening conditions; sweet, with fair balance of sugar to acid; texture smooth, melting, with few grit cells; ripens very late, beginning about the third week in September; keeps well in cold storage at 30 to 32F until May and June; home cans very well; considered as a possible replacement for Anjou.