Agnes Chase S First Book Of Grasses

For almost seventy-five years, Agnes Chase's First Book of Grasses has been the classic guide to the structure of this complex group of plants. Clearly written and copiously illustrated with line drawings, the book is accessible to those with little or no botanical training, yet it also is respected by botanists as an authoritative introduction to agrostology. Last updated in 1959, the book now has been thoroughly revised to reflect current scientific knowledge, nomenclature, and classification. Divided into twelve lessons, the guide first surveys the basic vegetative and reproductive parts of a grass plant, then in succeeding lessons takes up increasingly more complex modifications. Formally recognized groups of grasses are discussed in a taxonomic context, with the principal focus on grass structures, particularly those of inflorescences and spikelets. Virtually all of the species discussed are illustrated with detailed line drawings. With the addition in this edition of a lesson on bamboos, coverage now extends to tropical regions and encompasses all major groups of grasses. The book also includes a short biography of Agnes Chase in the foreword and, for the first time in this edition, a glossary accompanies the appendices on grass classification.

The grass family. The spikelet and the inflorescence. Modifications of the spikelet. Pediceled spikelets of few to many florets. Sessile spikelets in two-sided spikes. Pediceled spikelets with large glumes and other modifications. Pediceled one-flowered spikelets. Sessile spikelets in one-sided spikes. Diversely specialized spikelets. Spikelets with membranaceous glumes and hardened fruits. Paired spikelets with hardened glumes and thin lemmas. Highly specialized unisexual spikelets.

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The Kitchen Pantry Scientist: Biology for Kids features biographies of 25 leading biologists, past and present, accompanied by accessible, hands-on experiments and activities to bring the history and principles of biology alive.

Inspire young scientists with the biographies of 50 fascinating women in science past and present, each paired with a hands-on experiment that brings the history and principles of science to life. Women have been involved in STEM (Science, Technology, Engineering, and Math) for thousands of years. While many have faced obstacles because of their gender, things are changing for the better, and today there are more women than ever working in these disciplines. By examining the moments that inspired successful women to pursue STEM fields, delving into their adventures and struggles, and exploring their interests outside of science and engineering, She Can STEM gives kids a rare glimpse into the fascinating personalities behind the lab coats. Just a few of the many curious, creative, and persevering women introduced: Physicist Dr. Nadya Mason – Dr. Mason studies how electrons move through materials like carbon and graphene. She ran track in high school and was a gymnast on the United States National Team. Ecologist Dr. Robin Wall Kimmerer – When she was a young girl, Dr. Kimmerer loved to pick wild strawberries and nature helped her reconnect with her Potawatomi heritage. Eventually, her love of the outdoors led to a successful career as a plant ecologist and author. Physicist Dr. Chanda Prescod-Weinstein – As a kid, Dr. Prescod-Weinstein dreamed of becoming a professional baseball player. She attended a performing arts school where she trained as a dancer before going on to study astronomy and theoretical physics. Chemist Dr. Raychelle Burks – Dr. Burks has loved Agatha Christie mysteries and Star Trek since she was young. Today, she works to create hand-held sensing systems that can identify chemical clues tied to crimes. Microbiologist Dr. Esther Lederberg – Dr. Lederberg was a child during the Great Depression and was often hungry. Although she enjoyed literature, music, and French, she eventually chose biochemistry as her field of study and went on to make many important discoveries. Whether you’re passionate about science, math, history, art, music, or sports, the relatable role models in She Can STEM demonstrate that with curiosity and hard work, anyone can pursue a bright future in STEM. Dig into even more incredible science history from The Kitchen Pantry Scientist series with: Physics for Kids, Chemistry for Kids, Biology for Kids, Math for Kids, and Ecology for Kids.