Loretto. (Lab.) Queen Loretto. From Tennessee. Berry medium, round, white; good; mid-season.
Loudon Seedling. (Lab. Vin. Bourq.) A seedling of Delaware and Diana; from F. W. Loudon, Janesville, Wisconsin. Resembles Diana in bunch, berry and flavor.
Louisa. (Lab. Vin.) Grown by Samuel Miller, Calmdale, Pennsylvania. Vigorous, hardy; cluster compact, occasionally shouldered; berry round, oval, black with blue bloom; flavor resembles Isabella; ripens early.
Louise. (Lab. Vin.) Given by Mitzky as a seedling from New Jersey. Vigorous; bunch large, compact; berries large, white; juicy, sweet; very good.
Louisville. Noted in a list of supposed hardy grapes in United States Department of Agriculture Report for 1863.
Lowell Globe. Noted in a list of worthless varieties in Gardener’s Monthly in 1863.
Lucky. (Linc.) An undescribed variety used by Munson as a parent in a number of crosses.
Lucy Winton. Noted in the Gardener’s Monthly for 1861 as being equal in quality to Isabella and four weeks earlier.
Luders. (Rip.) A wild male vine of Vitis riparia secured from near Madison, Wisconsin, by Munson.
Luffborough. (Lab. Vin.?) Found near Georgetown, District of Columbia, before 1828. Berries large, deep purple; juice sweet, foxy. Recommended by John Adlum for wine and cited in a list of worthless varieties in Gardener’s Monthly, 1863.