The Gramineae, or grass family, is second in size only to the Compositeae, or sunflower family. It is among the most important plant families in the world. The major food crops of the world are found in the grass family. From time immemorial, grasses have provided food and shelter for humanity, domesticated livestock, and wildlife; without grasses, these forms of life might cease to exist. The grass family is large in size, diverse in habit, and ubiquitous in distribution. Earth would be bleak and bare, indeed, in the absence of this life-sustaining plant family. In addition to its economic...