Ohio Claret. A native variety under test by the United States Department of Agriculture in 1863.
Oktaha. (Champ. Vin. Lab. Bourq.?) A seedling of Vitis champini pollinated with Brilliant or Delaware; from Munson and introduced in 1898. Moderately vigorous, healthy, productive; cluster medium, cylindrical, shouldered, compact; berries medium, round, black with little bloom; skin thin, tough; pulp melting, juicy, sprightly, good; early.
Old Ford. (Lab.) Noted by Mitzky in 1893 as a wild grape from the mountains of North Carolina. Remarkably healthy and vigorous, productive; bunches medium; berries large, round, dark wine color; pulpy, juicy, sweet; very early.
Old Gold. (Rip. Lab. Vin.) Munson’s No. 29. Elvira crossed with Brighton; from Munson. Tested by Virginia Experiment Station and discarded; not introduced by the originator.
Old Hundred. (Cin. Aest.?) Mitzky, in 1893, says of this variety: “Introduced by J. A. Francis, Salem, Virginia. Bunch medium, not very compact; about the size of Clinton; black; very prolific; good table and wine grape; contains Cinerea blood in large quantity with probably Aestivalis.”
Olita. (Lab. Vin. Bourq.) A seedling of Delaware fertilized by Irving; from Munson in 1898. Moderately vigorous, not hardy, moderately productive, somewhat subject to attacks of mildew; flowers semi-fertile; stamens upright; clusters variable in size, long, nearly cylindrical, single-shouldered, variable in compactness; berries medium, round, yellowish-green, often with slight amber tinge, gray bloom; skin thin; somewhat tough; flesh tender and melting; mild, slightly vinous, nearly sweet; fair; ripens about with Concord; of the Delaware type but inferior to that variety in both fruit and vine characters.
Olitatoo. (Vin. Lab. Linc.) A seedling of Armlong crossed with Excelsior; from Munson in 1896. Cluster very large; berry medium, white; self-fertile; ripens very late.
Olmstead. (Lab.) A fox grape mentioned by Nicholas Longworth in Buchanan’s Culture of the Grape, 1852.
Olympia. From William M. Marine about 1870. Bunch and berry medium, round, black.
Omega. (Lab. Vin.?) From John Burr, Leavenworth, Kansas. Moderately vigorous, hardy, healthy, not productive; clusters medium to small, short, usually shouldered, compact; berries medium, oblate to roundish, dull red with thin gray bloom, persistent, soft; flesh green, tender, juicy, sweet, sprightly; good; ripens about with Concord; self-sterile.