A coherent, readable summary of the technical information available on savannas, barrens and rock outcrop plant communities.

This book will be of particular interest to those interested in applied fields of biology, such as conservation, forestry, and wild life. The southern twelve counties of Illinois, a total of 4,355square miles, comprise the area covered in this book. It is an area in which both northern and southern flora specimens abound. A wide variety of plant species grow in this area, and nearly 200 new plants not formerly identified with this area have been included in the listings. Especially valuable to amateur botanists, the book is an important manual in identifying the plants that make up the native scenery of this region. Seventy-seven illustrations aid in identifying and understanding the plant communities.

Publications listed in this bibliography describe natural plant communities in the States of: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, and Wisconsin. Only those studies actually conducted in these States and those studies for larger areas but specifically referring to plant communities in the States listed are included.

Robert H. Mohlenbrock provides a definitive account of the pokeweed, four-o'clock, carpetweed, cactus, purslane, goosefoot, pigweed, and pink families in Illinois. Flowering Plants: Pokeweeds, Four-o'clocks, Carpetweeds, Cacti, Purslanes, Goosefoots, Pigweeds, and Pinks is the fifteenth volume of the Illustrated Flora of Illinois series and the ninth devoted to dicots, or plants that have two seed-leaves, or cotyledons, upon germination. Each of the 141 plants is beautifully illustrated by Paul W. Nelson. Nelson shows the full habitat of the plant and close-ups of various vegetative and reproductive structures that are crucial for the identification of individual species. Each illustration includes detailed drawings of the flowers, fruits, and seeds of the plant covered. Mohlenbrock provides a complete description of each species as well as a discussion of the nomenclature and habitats, and his fifty-three years of experience enable him to present little-known diagnostic features for many species. Range maps show the county distribution of each species in Illinois. Mohlenbrock includes a statement giving the overall range of each species in the United States as well as a detailed key for the identification of the species. Flowering Plants contains many plants whose obscure flower parts make them exceedingly difficult to identify. The close-up illustrations of these parts will aid the user of the book immensely in identification of the species. Included are several species previously unknown in Illinois. New illustrations, which include detailed drawings of the flowers, fruits, and seeds are presented for each species covered in this book. Mohlenbrock's fifty-three years of experience enable him to present little-known diagnostic features for many species.