Cos
AppleCos
Origin/History
A native of Kingston, New York, where it is productive and highly esteemed. Elliott identifies it as American in origin.
Tree
Not described in source.
Fruit
Size and Form: Large, one-sided or angular, roundish, broad and flattened at the stalk, narrowing a good deal to the eye.
Stem: Not described in source.
Cavity: Not described in source.
Calyx: Not described in source.
Basin: Not described in source.
Skin: Smooth. Pale greenish yellow in the shade, becoming red in the sun, with splashes and specks of bright red and a few yellow dots. (Elliott describes the red markings as streaks rather than splashes and specks.)
Flesh/Flavor: Flesh white and tender. Downing characterizes the flavor as mild and agreeable, rating the variety good to very good. Elliott describes the flesh as sub-acid.
Core/Seeds: Not described in source.
Season
December to March.
Uses
Not described in source.
Subtypes/Variants
Not described in source.
Book Sources
Described in 2 period pomological works
- Downing, Fruits and Fruit Trees of America (1900) — listed as Cos, or Caas
- Elliott, The Western Fruit Book (1865) — listed as Cos, or Caas
View original book sources (2)
— A.J. Downing, The Fruits and Fruit Trees of America (1900)Cos, or Caas.
A native of Kingston, N. Y., where it is productive and highly esteemed.
Fruit large, one-sided or angular, roundish, broad, and flattened at the stalk, narrowing a good deal to the eye. Skin smooth, pale greenish yellow in the shade, but red in the sun, with splashes and specks of bright red, and a few yellow dots. Flesh white, tender, with a mild, agreeable flavor. Good to very good. December to March.
— F.R. Elliott, The Western Fruit Book (1865)Cos, or Caas. American. Large, roundish, greenish yellow, red streaks ; flesh, white, tender, sub-acid. December to March.