Idall. Munsoniana × Hortulana mineri. 1. Cornell Sta. Bul. 38:56. 1892. 2. Am. Gard. 19:234. 1898. 3. Waugh Plum Cult. 173. 1901.
Idal 2. Idol 1. Idol 1, 2.
According to the originator, D. B. Wier, of Illinois, the Idall is a cross between Wild Goose and Miner. Fruit large, roundish-oval; cavity shallow; suture a line; red; dots many; skin tough; flesh yellow; good; stone of medium size, oval, clinging; late.
Imperial. Americana. 1. Ia. Sta. Bul. 46:276. 1900.
A small plum of the De Soto type brought to notice by C. B. Ginrich, Laporte, Iowa. Fruit round, conical; cavity broad, deep; suture a line; yellow with red markings; bloom thin; flesh clear yellow, firm, brisk, acid; good; clingstone.
Impériale Alexandrina. Species? Mentioned in Mathieu Nom. Pom. 436. 1889.
Impériale de Milan. Domestica. 1. Lond. Hort. Soc. Cat. 149. 1831. 2. Hogg Fruit Man. 365. 1866. 3. Mas Le Verger 6:67. 1866-73.
Mailändische Kaiserpflaume 3. Prune de Milan 2, 3.
Originated near the city of Milan, Italy. Tree large, vigorous, spreading; fruit medium, oval; suture distinct; stem short, rather thick; skin tough, dark purple; bloom heavy; flesh greenish-yellow, juicy, firm, sweet; good; usually freestone; mid-season.