Dent Corn (Zea mays var. indentata) also known as Yellow Dent Corn, Reid's Yellow Dent Corn, White Dent Corn, or Field Corn is a variety of maize or cornwith a high soft starch content. It received its name because of the small indentation ("dent") at the crown of each kernel on a ripe ear of corn. It is a variety developed by northern Illinois farmer James L. Reid. Reid in 1846
Most of the corn grown in the United States today is Yellow Dent or a closely related variety derived from it. Dent corn is the variety used in food manufacturing as the base ingredient for cornmeal flour (used in the baking ofcornbread), corn chips, tortillas and taco shells. Starch derived from this high-starch content variety is turned into plastics, as well as fructose which is used as a sweetener (High-fructose corn syrup) in many processed foods and soft drinks.
-- Wikipedia ( http://en.wikipedia.org/wiki/Dent_corn )
Flint corn has less soft starch than dent corn (Zea mays indentata) Because each kernel has a hard outer layer to protect the soft endosperm, it is likened to being hard as flint; hence the name.. This is one of the three types of corn cultivated by Native Americans, both in New England and across the northern tier. Because flint corn has a very low water content it is more resistant to freezing than other vegetables.
Flint corn is also the type of corn preferred for making hominy, a staple food in the Americas since pre-Columbian times. Popcorn (Zea mays everta, "corn turned inside out") is considered a variant of this type. It has a hard, slightly translucent kernel.
Flint corn cultivars that have large proportions of kernels with hues outside the yellow range areused ornamentally. They are often called either "ornamental corn" or "Indian corn", although each of those names has other meanings as well.
- Wikipedia (http://en.wikipedia.org/wiki/Flint_corn)
Popcorn, also known as popping corn, is a type of corn (maize, Zea mays var. everta) that expands from the kernel and puffs up when heated. Popcorn is able to pop because, like amaranth grain, sorghum, quinoa, and millet, its kernels have a hard moisture-sealed hull and a dense starchy interior.
Popcorn was first domesticated in Mexico 9,000 years ago from a wild grass. A few thousands of years later it then made its way across Central and South America. Popcorn is one of the oldest forms of corn; evidence of popcorn from 3600 B.C. was found in New Mexico. Corncobs found at two ancient sites in Peru (Paredones and Huaca Prieta) may date from as early as 4700 B.C. This suggests that people living along the coast of northern Peru were already eating popcorn by that time…. Special varieties are grown to give improved popping yield. Some wild types will pop, but the cultivated strain is Zea mays everta, which is a special kind of flint corn.
-- Wikipedia ( http://en.wikipedia.org/wiki/Popcorn )