Main. (Lab.) Mentioned in the horticultural periodicals of fifty years ago as a variety very similar to Concord and thought by many to be the same; from a Mr. Main, of Concord, New Hampshire, about 1854. Said to be about ten days earlier than Concord.
Malinda. An early white variety mentioned in Gardener’s Monthly in 1869.
Malvin. One of Marine’s seedlings, described as black, of good quality and with cluster and berry of medium size.
Manhattan. An amber-green seedling of Isabella which originated on Long Island about 1850. Unproductive; cluster small, compact; berry medium; flesh tough, foxy; good; ripens late; shatters.
Manockanock. Listed by Prince in Gardener’s Monthly in 1863 as worthless.
Mansfield. (Lab. Vin.) A seedling of Concord fertilized by Iona; raised in 1869 by C. G. Pringle of Charlotte, Vermont. Very vigorous; leaves large, thick, very pubescent below; cluster large, shouldered, compact; berry large, slightly oval, black; flesh tender; very good; ripens before Concord.
Manson. A cross between R. W. Munson and Gold Coin; produced by Munson in 1899 and introduced in 1906. Munson says: “Vigorous and productive; clusters large; berry above medium, of yellow color; skin thin and tough; pulp tender; quality excellent; ripens late, with Triumph.”
Marguerite. (Lab. Vin.) A Labrusca-Vinifera variety; from Theophile Huber, Illinois City, Illinois. Vigorous, not productive; stamens upright; cluster small, loose; berries medium, light amber; tender, sweet, vinous; good; ripens a week after Concord.
Marguerite. (Linc. Bourq.) Originated by Munson; from Post-oak No. 2 fertilized by Herbemont. Very vigorous, very productive; shoots spiny, not downy; leaves medium to large, three- to five-lobed; stamens upright; clusters medium, cylindrical, shouldered, compact; berries large, round, dark purple; skin thin, tough; flesh tender; good; ripens ten days later than Catawba.
Marine’s Seedlings. A number of varieties were produced by Wm. M. Marine about 1870. They were all crosses of native sorts produced by putting the pollen in water and then applying the water to the stigma of the sort to be fertilized. Of the varieties thus produced are Nerluton, Greencastle, Leon, Lucas, Mianna, Malvin, Olympia, King William, Minnie, Harriet Beecher, U. B., Uncle Tom, Red Jacket, and many others.