A possible solution for classroom plant growth where space and time are minimal. Care and plant propagation are discussed. Several experiments in which bryophyllum can be successfully used are described. (EB)

Contains information regarding pollen and human allergies. Lists most common types of pollen, describes pollen morphology, diagrams and apparatus for collecting pollen, and suggests laboratory activities such as pollen counts, pollen concentration, dispersal, and meteorological effects. (CS)

The purpose of this study was to provide an introductory analysis of the content of the Web sites of botanical and horticultural libraries in the United States to determine what types of resources and information is included, whether or not information is organized and accessible, and to what extent botanical and horticultural libraries are using…

In order to name and classify a plant they see, children use their existing mental models to provide the plant with a name and classification. In this study, pupils of a range of ages (4,8,11 and 14 years old) were presented with preserved specimens of six different plants (strictly, five plants and a fungus) and asked a series of questions about…

Describes a method for measuring osmotic potential which is suitable for high school and college biology classes. This method introduces students to the hard-to-visualize technique of using density gradients to separate cells or cell constituents of differing densities. (JR)

Describes an outdoor educational program at the University of California Botanical Garden in which children are encouraged to handle the plants and are provided with a taped commentary. By the use of an inquiry method, children learn how the Californian Indians used many of the native plants. (JR)

Earlier draft of this paper prepared with the fellowship support of the Center for Advanced Study in the Behavioral Sciences and a grant from the National Science Foundation, and distributed as Working Paper No. 39, Language-Behavior Research Laboratory (March 1971). (VM)

Discusses fern life cycle and basic techniques for culturing fern gametophytes in the classroom. Also discusses investigations into the reproductive biology of ferns and into the early development of gametophytes. (JN)

Describes a genetics activity illustrating genetic variation, mutation, and influence of environmental factors on genotypic expression. Irridiated bean seeds are planted and observed (x-rayed by dentist's x-ray machine at different exposures and for different times). Questions to extend the activity are discussed. (Author/JN)

Physical, chemical, and biological effects on macrophytes (aquatic plants) on the freshwater ecosystem are discussed. Research questions and issues related to these organisms are also discussed, including adaptations for survival in a wet environment, ecological consequences of large-scale macrophyte eradication, seasonal changes in plant…

A college level plasmolysis experiment, demonstrating principles of cell/water relations, has been modified to demonstrate the objective collection of data. Background information, laboratory procedures, results, and instructional strategies are provided. (Author/JN)

Suggests using Bryophyllum pinnatum to illustrate botanical principles. Includes tips for keeping and maintaining the plant in the classroom and suggests several student activities, including observing root/shoot growth, investigating apical dominance, exploring multiple leaf development, and others. (JN)

Found at the summit of some of the highest peaks of New York State's Adirondack Mountains are low-growing plants similar, and in many cases, identical to plants growing in the Arctic. Describes these plants and the environment in which they are found. Includes a color plate of alpine tundra plants. (Author/JN)

Argues for the acceptance and use of a five-kingdom classification system for biology comprised of monera, protoctista, fungi, animals, and plants. Justifies the new system based upon the difference between prokaryotes and eukaryotes. Outlines each kingdom and describes its members. (DC)