This section is from the "American Horticultural Manual Vol2" book, by J. L. Budd. Also available from Amazon American Horticultural Manual, Part Two.
Gray Reinettes, Leather Apples, Russets (Graue
Reinetten, Lederaepfel).
Form: Small, medium, and large, of globular and flat round, seldom longish form, and mostly very regular.
Skin: Roughened by patches, markings, and entire coverings of russet, seldom colored; the ground-color gray greenish yellow to dull yellow; the red color, when present, is not pure because of russet traces.
Flesh: Delicate, marrowy, sweet, sweet vinous, and quite spicy (the true leather apples); or a spicy sweet (fennel apples).
Core: Regular and closed.
Orders and Suborders as in Class I.
Gold Reinettes.
Form: Medium and large, flat round, globular, and longish fruits, with basin regular or ribbed; not rarely with broad, flat prominences extending over the surface.
Skin: Quite smooth, rarely entirely smooth, with more or less of russet traces, especially on sunny side, by which the red blush is often made dingy; the ground-color high yellow and golden yellow, the over-color sometimes shaded, sometimes striped. The fruit of young trees smoother and softer to the touch than those from older, which are always rougher.
Flesh: Very delicate, juicy, marrowy, often yellowish, very spicy, and mostly of high, vinous, sugary flavor.
Core: Sometimes open, sometimes closed.
Orders and Suborders as in Class X,
Stripelings (Streiflinge).
Form: Small, medium, large but not very large fruits of very variable form, largely roundish, with the bulge or curvature high on the fruit, conical and ribbed.
Skin: Smooth, shining, sometimes delicate, sometimes tough, often with bloom, striped and shaded (marbled), striped, rarely with russet traces.
Flesh: Sometimes firm and granular, sometimes also spongy, more often reddish under the skin, usually pure vinous, more rarely sweet-sour and sweet; aroma mostly wanting.
Core: Mostly regular and closed.
Orders.
1. Mataepfel, with wide basin, uneven apex, of flat, round or longish globular form.
2. Bean Apples (Bohnaepfel), with very shallow basin and oblique apex; longish round, often of oblique form.
3. Round Stripelings, fruits with even apex; longish round or flat round form.
4. Pointed Stripelings, fruits with small very narrow apex and of longish-pointed or roundish-pointed form.
5. Ribbed Stripelings, fruits with apex, made irregular by ribs or rib-like prominences; the bulge is also uneven.
Suborders as in Class I.
Pointlings (Spitzaepfel).
Form: Of mostly medium and only rarely very large size; of longish, longish conical, or blunt conical, often irregular form.
Skin: Smooth, shining, delicate, seldom with bloom, ground-colored or colored, never striped.
Flesh: Loose and tender, sweetish and vinous to pure acid.
Core: Regular, mostly closed, sometimes with hollow axis.
Order 1. Ground colored; 2. Colored.
Suborders as in Class I.
Flat Apples (Plataetpfel).
Form: Small, medium and large, flat round or flat globular, usually broader than high.
Skin: Smooth, shining, firm, ground-colored or colored, never striped, often with bloom.
Flesh: White or greenish white, mostly firm and crisp, rarely tender and marrowy, pure sweet to pure acid, never really spicy. Core: Mostly regular and closed. Orders and Suborders as in Class XIV.
 
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