Jack
AppleJACK
Origin and History
Jack is grown to a very limited extent in East Bloomfield, Ontario County, New York. It has not been obtained from any other locality. The origin is unknown. The variety may be identical with Oskaloosa, which lists Jack as a synonym, but definitive confirmation has not been possible due to the scarcity of available fruit of Oskaloosa and the meager descriptions of that variety.
Tree
Tree not very vigorous, with moderately long, slender, crooked branches. Form at first upright spreading but becoming roundish and rather dense. Twigs long, straight, slender with short internodes. Bark brown or reddish-brown, lightly streaked with scarf-skin; slightly pubescent near tips. Lenticels quite numerous, rather conspicuous, medium size, oblong, slightly raised. Buds small, plump, obtuse, appressed, slightly pubescent.
Fruit
Size and Form: Medium or above, sometimes rather large, not uniform in shape or size. Form oblate, varying to roundish oblate or oblate conic; very irregular with obscure ribbing. Sides often somewhat furrowed and unequal.
Stem: Short to medium, slender.
Cavity: Acuminate, usually deep, medium in width, russeted with concentric russet lines often extending beyond the cavity, sometimes lipped.
Calyx: Medium size, usually open.
Basin: Small to medium, rather shallow to moderately deep, narrow to medium in width, unsymmetrical, irregularly furrowed or nearly smooth.
Skin: Rather thin, waxy, glossy, attractive yellow with shades of green. Sometimes faintly tinged with red and marbled with whitish scarf-skin over the base, somewhat in the manner of Yellow Newtown. Dots mostly small and depressed, mingled with a few that are larger, scattering and irregular with russet center.
Calyx Tube: Medium in width and length, conical to somewhat funnel-form. Stamens median or below.
Core: Medium in size, somewhat abaxile; cells usually symmetrical, somewhat open; core lines clasping. Carpels elliptical, deeply emarginate.
Seeds: Medium or below, wide, short, rather flat, obtuse, mingled with light and dark brown.
Flesh and Flavor: Tinged with yellow, moderately firm, moderately crisp or breaking, very tender, moderately juicy, very mild subacid. Very good for dessert.
Season
October and November.
Uses and Quality
Highly esteemed for its excellent dessert quality. However, the flesh is too tender to withstand shipping well. The irregular shape and yellow color are not sufficiently attractive for market purposes, limiting its commercial potential.
Other
The tree is not a vigorous grower and has rather slender twigs.
Book Sources
Described in 1 period pomological work
View original book sources (1)
— S.A. Beach, The Apples of New York, Vol. 2 (1905)JACK.
REFERENCES. 1. (?) Hooper, 1857:46. 2. (?) Downing, 1869:206. 3. (?) Ill. Sta. Bul., 45:334. 1896. SYNONYMS. (Early Jack 1)? (JACK APPLE 1)? (OSKALOOSA 2, 3)?
Fruit of good medium size, yellow; flesh very tender, rich, mild subacid. It is highly esteemed for its excellent dessert quality but it is too tender to stand shipping very well and on account of its irregular shape and yellow color it is not sufficiently attractive for market purposes. The tree is not a vigorous grower and has rather slender twigs. Possibly this is identical with Oskaloosa which has Jack as a synonym, (2, 3) but we have been unable to obtain fruit of Oskaloosa and the available descriptions of that variety are so meager that it is impossible to determine whether or not it is identical with the variety described above.
Historical. Jack is grown to a very limited extent in East Bloomfield, Ontario county, N. Y. We have not obtained it from any other locality. We have been unable to learn where it originated, or whether it is the Jack mentioned by Hooper (1).
TREE.
Tree not very vigorous with moderately long, slender, crooked branches. Form at first upright spreading but becoming roundish and rather dense. Twigs long, straight, slender; internodes short. Bark brown or reddish-brown, lightly streaked with scarf-skin; slightly pubescent near tips. Lenticels quite numerous, rather conspicuous, medium size, oblong, slightly raised. Buds small, plump, obtuse, appressed, slightly pubescent.
FRUIT.
Fruit medium or above, sometimes rather large, not uniform in shape or size. Form oblate varying to roundish oblate or to oblate conic, very irregular, obscurely ribbed, often with the sides somewhat furrowed and unequal. Stem short to medium, slender. Cavity acuminate, usually deep, medium in width, russeted, with concentric russet lines often extending beyond the cavity, sometimes lipped. Calyx medium size, usually open. Basin small to medium, rather shallow to moderately deep, narrow to medium in width, unsymmetrical, irregularly furrowed or nearly smooth. Skin rather thin, waxy, glossy, attractive yellow with shades of green, sometimes faintly tinged with red and marbled with whitish scarf-skin over the base somewhat after the manner of Yellow Newtown. Dots mostly small and depressed mingled with a few that are larger, scattering and irregular with russet center. Calyx tube medium in width and length, conical to somewhat funnel-form. Stamens median or below. Core medium in size, somewhat abaxile; cells usually symmetrical, somewhat open; core lines clasping. Carpels elliptical, deeply emarginate. Seeds medium or below, wide, short, rather flat, obtuse, mingled with light and dark brown. Flesh tinged with yellow, moderately firm, moderately crisp or breaking, very tender, moderately juicy, very mild subacid, very good for dessert. Season October and November.