Robert’s Freestone 1.
Fruit of medium size, oblong, flattened; suture a line; light greenish-yellow overlaid with purplish-red; skin thick, tough; flesh moderately firm, sweet but not rich; stone nearly free.
Roby Yellow. Domestica. 1. Downing Fr. Trees Am. 944. 1869.
A seedling raised by H. R. Roby, Fredericksburg, Virginia. Tree moderately vigorous; fruit small, round; suture broad, shallow; cavity small; greenish-yellow; bloom heavy; flesh greenish-yellow, juicy, sweet; good; clingstone; mid-season.
Rockford. Americana. 1. U. S. D. A. Rpt. 392. 1891. 2. Waugh Plum Cult. 161 fig. 1901. 3. Ia. Hort. Soc. Rpt. 128. 1906.
Introduced in 1889 by C. G. Patten of Charles City, Iowa, who found the variety in 1871 on the farm of O. J. Green who, in turn, had brought it as a young tree from a grove near Rockford. Tree productive; fruit medium in size, roundish; cavity medium; suture shallow; skin thick, tough; dark and somewhat purplish-red; bloom thick; dots small; flesh yellow; good; stone large, oval, flattened, clinging; mid-season; listed by the American Pomological Society since 1897.
Rocky Mountain. Species? 1. Can. Hort. 15:157. 1892. 2. Cornell Sta. Bul. 38:80. 1892.
Rocky Mountain Seedling 2.
Reported in the Canadian Horticulturist as a “heavy cropper and of first quality.” Bailey mentions a “Rocky Mountain Seedling” in an unclassified list. The Rocky Mountain described by Waugh is not to be confused with these two varieties as it is undoubtedly a Sand Cherry.
Rodney. Domestica. 1. Lond. Hort. Soc. Cat. 152. 1831.