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A Comparative Study Of Directed Laboratory And Lecture Demonstration As Methods Of Instruction In Teaching Botany To High School Students, M. Lucida Vorndran
A Comparative Study Of Directed Laboratory And Lecture Demonstration As Methods Of Instruction In Teaching Botany To High School Students, M. Lucida Vorndran
Master's Theses
A controlled investigation of green plants as the most important food factories of the world has been made in order to contribute more information upon the issue. Stated more specifically, the problems of this experimental study were the following: To determine which of the two methods, if either, is superior as a procedure for learning. To determine whether laboratory experiments are more effective than lecture-demonstration in training students to think clearly, to correlate and retain facts; and finally, to draw logical conclusions. To determine, if possible, which method stimulated the greater amount of pupil interest.
A Quarter Century Of Botany At Butler University, John E. Potzger
A Quarter Century Of Botany At Butler University, John E. Potzger
Butler University Botanical Studies
Kingdoms, inventions, masterpieces in literature, art, music, and architecture are born out of dreams. They may seem flimsy and elusive but they show the things which are closest to the heart far down the lapse of time. For, building along the lines of dreams makes realities.
The Butler Botany Department was once upon a time just such an elusive, tantalizingly uncertain dream of a young Ph. D., a dream which occupied his mind when the ink had barely dried on the signatures to his diploma which the University of Michigan had presented to him as tangible evidence of years of …
Index V. 7, 1945, Ray C. Friesner
Index V. 7, 1945, Ray C. Friesner
Butler University Botanical Studies
Index of articles contained in Volume 7.
The Stem Smuts Of Stipa And Oryzopsis In North America, George W. Fischer
The Stem Smuts Of Stipa And Oryzopsis In North America, George W. Fischer
Butler University Botanical Studies
Over much of that great natural resource called the "Western Range," comprising some 728 million acres (1), species of Stipa and Orysopsis are prominent and important members of the grass cover. These are commonly found affected with stem smut; often as much as 15-20 per cent of the plants are affected, and occasionally as 90 per cent infection is encountered. In view of these grasses as components of the western range, and the general interest manifest in the nature of the stem smuts so common on them, it seemed desirable to make a study of the identity of these smuts.
The Characeae Of Indiana - A Preliminary Report, Fay Kenoyer Daily
The Characeae Of Indiana - A Preliminary Report, Fay Kenoyer Daily
Butler University Botanical Studies
It has been demonstrated by others that the study of algae of Indiana in general has been neglected. In 1929 in an introduction to a classified check list of the algae of Indiana, Dr. C. M. Palmer (5) remarked, "Few papers have been published giving the names of the algae of Indiana." Also in 1932 after giving a phycological history of Indiana, Dr. B. H. Smith (7) observed, "This review of literature shows very clearly the meager amount of work which has been done on the algae in the state since the beginning fifty-five years ago." These statements are especially …
A Pollen Study Of Thirty-Two Species Of Grasses, Florence Geisler
A Pollen Study Of Thirty-Two Species Of Grasses, Florence Geisler
Butler University Botanical Studies
The study of fossil pollens from bogs and lake sediments shows that sometimes the percentage of grasses runs quite high. The presence of large amounts of grass pollens has usually been interpreted, often without justification, as proof of prairie invasion. It is certainly necessary to determine the genera of grasses which contributed the pollen before such a conclusion can be made. Keller (5) attempted this in his work on three Indiana bogs. Careful examination and measurements of the grass pollens found and comparison with size frequency of pollens from modern grasses forced him to the conclusion that the predominating pollen …
A Biological Spectrum Of The Flora Of The Great Smoky Mountains National Park, Stanley A. Cain
A Biological Spectrum Of The Flora Of The Great Smoky Mountains National Park, Stanley A. Cain
Butler University Botanical Studies
The present study of life-forms of the Great Smoky Mountains flora is based on the system of Raunkiaer (1934). Realizing the difficulties involved in correlation of meteorological and climatological data with the natural occurrences of plants, Raunkiaer designed his life-form system as a means of defining what he called phytoclimates. The theoretical basis was a familiar one in plant geography (Cain, 1944) and may be expressed as follows: (1) Plants are limited in their capacity to endure different environmental complexes. (2) There is usually a correlation between the morphology (growth-form, life-form) of an organism and its environment, i.e., there …
Plant Succession At Long Pond, Long Island, New York, Dorothy Parker
Plant Succession At Long Pond, Long Island, New York, Dorothy Parker
Butler University Botanical Studies
Kettle hole lakes of glacial origin are of frequent occurrence on the north side of Long Island, New York. These lakes very in size and depth. Long Pond is a kettle hole lake located about eight miles south of Wading River on Long Island. it is an irregularly shaped lake approximately one-half mile wide and one-half mile long at the present time (See fig. 1 for the shape of the lake and the location of the areas which were studied statistically.) There are several small ponds that are cut off now or are in the process of being cut off …
Additions To The Filamentous Myxophyceae Of Indiana, Kentucky And Ohio, William A. Daily
Additions To The Filamentous Myxophyceae Of Indiana, Kentucky And Ohio, William A. Daily
Butler University Botanical Studies
During the past several years, numerous specimens of the Myxophyceae from Indiana, Kentucky and Ohio have accumulated in the herbaria cited below. Some of these species presumably have not previously been reported for this region and are now placed on record.
It is known that many collections of algea, the bases for previous reports, have been lost or are inaccessible. It is the desire of the writer and of other students of the herbarium that all published works on the algae be based only upon permanently preserved specimens.
A Preliminary Study Of Lemanea In Western North America, C. Mervin Palmer
A Preliminary Study Of Lemanea In Western North America, C. Mervin Palmer
Butler University Botanical Studies
Lemanea from both Europe and America is being studied to determine whether the representatives from the two continents are distinct, and whether there are undescribed species to be recognized particularly for American forms. The two subgenera, Eulemanea and Sacheria, are round on both continents (4). Occasionally plants of both the subgenera have been collected growing close together in the same stream (5, 6), but there are no indications that hybridization takes place. Several hundred specimens of Lemanea have been studied by the writer and in no case have any plants been discovered which could be considered as intermediate between Eulemanea …
A Quadrat Study Of Meltzer Woods, Shelby County, Indiana, Carl O. Keller
A Quadrat Study Of Meltzer Woods, Shelby County, Indiana, Carl O. Keller
Butler University Botanical Studies
As one travels eastward on return from a trip through the prairie states, perhaps the most characteristic feature of the landscape which starts him humming the strains of, "Back Home Again in Indiana," are the beautiful woodlands along the highways of our state. These woodlands are remnants of the great Eastern deciduous forest upon which the pioneers gazed with amazement as they penetrated the interior of our continent. The botanist and Nature lover of the present day ofttimes wish they could have had the thrill of looking at the stately array of massive-trunked, majestic giants in that forest primeval. There …
Interrelationship Of Nitrogen And Photo-Period On The Flowering, Growth, And Stem Anatomy Of Certain Long Day And Short Day Plants, Alice Phillips Withrow
Interrelationship Of Nitrogen And Photo-Period On The Flowering, Growth, And Stem Anatomy Of Certain Long Day And Short Day Plants, Alice Phillips Withrow
Butler University Botanical Studies
The relation of nitrogen to the flowering and fruitfulness of plants has been subject of extended investigation by many workers. That nitrogen nutrition is intimately related to flower and fruit formation is generally agreed upon, but the various experiments show that apparently the type of responses obtained are not entirely consistent.
An Ecological Study Of The Floodplain Forest Along The White River System In Indiana, Mordie B. Lee
An Ecological Study Of The Floodplain Forest Along The White River System In Indiana, Mordie B. Lee
Butler University Botanical Studies
As pointed out by Potzger and Friesner (9), Conard (3) and Cain (1), a mere empirical description of a forest means little as a definite presentation of conditions operating, and becomes nil in comparative studies. Most of the work on forest ecology in the United States has considered upland climax communities, and very little attention has been given the great transitional forests of the floodplains, and to the writer's knowledge only Oosting (8) has given specific quantitative data on the sociology of the species constituting the crown cover of the floodplain forests.
The present study of 20 stands was made …
The Pine Barrens Of New Jersey: A Refugium During Pleistocene Times, John E. Potzger
The Pine Barrens Of New Jersey: A Refugium During Pleistocene Times, John E. Potzger
Butler University Botanical Studies
In 1943 Potsger and Otto (13) published the first paper on the pollen analyses of New Jersey peat which involved a series of five bogs from northern and northwestern New Jersey. These bogs represented a rather large geographical area, but their message was unusually uniform. One might, therefore, be justified to assume that the study gave a rather trustworthy history of the vegetation of the glaciated part of the state. From a forest constituted almost entirely of Abies, Picea, and Pinus, succession carried dominance to a pronounced Pinus period. This genus contributed as much as 80% of the pollens at …
The Plant Associations Of The Carson Desert Region, Western Nevada, W. Dwight Billings
The Plant Associations Of The Carson Desert Region, Western Nevada, W. Dwight Billings
Butler University Botanical Studies
Except for scattered references of a generalized nature, little is recorded concerning the structure of vegetation in the arid and semi-arid portions of the western Great Basin. The delineation of the associations' of a part of this area and their particular environments is the prime function of this paper.