Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Plant Sciences (271)
- Botany (126)
- Plant Biology (83)
- Biology (71)
- Biodiversity (40)
-
- Physical Sciences and Mathematics (35)
- Ecology and Evolutionary Biology (26)
- Education (21)
- Engineering (21)
- Arts and Humanities (19)
- Higher Education (18)
- Forest Sciences (13)
- Horticulture (13)
- Social and Behavioral Sciences (13)
- Environmental Sciences (11)
- History (11)
- Other Plant Sciences (11)
- Weed Science (9)
- Agriculture (8)
- Forest Biology (8)
- Integrative Biology (8)
- Terrestrial and Aquatic Ecology (7)
- Agronomy and Crop Sciences (6)
- Art and Design (6)
- Other Ecology and Evolutionary Biology (6)
- United States History (6)
- Earth Sciences (5)
- Evolution (5)
- Genetics and Genomics (4)
- Institution
-
- William & Mary (63)
- Pepperdine University (56)
- California Polytechnic State University, San Luis Obispo (24)
- Southwestern Oklahoma State University (18)
- Brigham Young University (15)
-
- University of Nebraska - Lincoln (15)
- University of Richmond (15)
- Department of Primary Industries and Regional Development, Western Australia (8)
- Claremont Colleges (6)
- Western Kentucky University (6)
- Wilfrid Laurier University (6)
- Bucknell University (5)
- University of Minnesota Morris Digital Well (4)
- Eastern Illinois University (3)
- Louisiana State University (3)
- Selected Works (3)
- Technological University Dublin (3)
- The University of Maine (3)
- University of South Carolina (3)
- University of Southern Maine (3)
- University of the Pacific (3)
- Augustana College (2)
- Cal Poly Humboldt (2)
- DePauw University (2)
- Grand Valley State University (2)
- James Madison University (2)
- Ohio Wesleyan University (2)
- Old Dominion University (2)
- Rhode Island College (2)
- University of Kentucky (2)
- Publication Year
- Publication
-
- Reports (63)
- Featured Research (56)
- Academic, Government & Associated Organizational Research Resources (23)
- Oklahoma Research Day Abstracts (18)
- Biology Faculty Publications (14)
-
- Theses and Dissertations (13)
- Theses and Dissertations (Comprehensive) (6)
- Faculty Journal Articles (4)
- Faculty Publications (4)
- Journal of the Minnesota Academy of Science (4)
- MSS Finding Aids (4)
- Aliso: A Journal of Systematic and Floristic Botany (3)
- Books by Faculty of the Monte L. Bean Life Science Museum (3)
- Journal of the Department of Agriculture, Western Australia, Series 4 (3)
- Maine Collection (3)
- Master's Theses (3)
- School of Biological Sciences: Faculty Publications (3)
- University of the Pacific Theses and Dissertations (3)
- Zea E-Books Collection (3)
- Articles (2)
- Biology Faculty publications (2)
- Bulletins 4000 - (2)
- CGU Theses & Dissertations (2)
- Celebration of Learning (2)
- Department of Environmental Studies: Undergraduate Student Theses (2)
- Faculty Research & Creative Activity (2)
- IGC Proceedings (1997-2023) (2)
- LSU Historical Dissertations and Theses (2)
- Student Symposium (2)
- Technical Bulletins (2)
Articles 301 - 321 of 321
Full-Text Articles in Life Sciences
An Etiological And Host Range Study Of Celery Mosaic In Utah, Dennis H. Hall
An Etiological And Host Range Study Of Celery Mosaic In Utah, Dennis H. Hall
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Celery mosaic is a virus disease of major economic importance in Utah. In years of severe epiphytotics, it has been a limiting factor in celery production. In 1947 losses due to this disease were estimated to exceed 8 per cent of the total crop. This estimate does not include losses resulting from reduction in grade or from plants discarded in the packing sheds. The celery acreage in Utah dropped from a high of 950 acres in 1946 to 750 acres in 1947 and dropped again in 1948 to 420 acres. Leaders in the industry attributed this reduction in acreage, in …
Manual Of The Grasses Of The United States, Second Edition, A. S. Hitchcock, Agnes Chase
Manual Of The Grasses Of The United States, Second Edition, A. S. Hitchcock, Agnes Chase
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
By the late A. S. HITCHCOCK (died December 16, 1935), principal botanist, Division of Plant Exploration and Introduction; second edition revised by AGNES CHASE, formerly senior botanist and later collaborator, Division of Plant Exploration and Introduction, Bureau of Plant Industry, Soils, and Agnculturat Engineering, Agricultural Research Administration, and research associate, United States National Museum, Smithsonian Institution.
Of all the plants of the earth the grasses are of the greatest use to the human race. To the grasses belong the cereals, sugarcane, sorghum, and the bamboos; and, since they furnish the bulk of the forage for domestic animals, the grasses are …
Drug Plants Of California, Frederick Louis Beauchamp
Drug Plants Of California, Frederick Louis Beauchamp
University of the Pacific Theses and Dissertations
Many books and articles have been written covering the flora of California. Few, however, have dealt specifically with those plants yielding drug principles used in the materia medica of the medical and pharmacy professions. Over one thousand different species of native and introduced drug plants are growing in the state. Many of these, it is true, have fallen into disuse, either because of lack of medicinal value, or substitutes have been found in the laboratories of the chemist.
The development of the drug farming industry will not only give employment to the state’s increasing population, but will enable our nation …
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.
The Perfect Stage Of Colletotrichum Falcatum., Fernando Carvajal
The Perfect Stage Of Colletotrichum Falcatum., Fernando Carvajal
LSU Historical Dissertations and Theses
No abstract provided.
Common Native Grasses Of Nebraska, A. L. Frolik, F. D. Keim
Common Native Grasses Of Nebraska, A. L. Frolik, F. D. Keim
Nebraska Agricultural Experiment Station: Historical Circulars
Twenty-four native grasses that are the most important and most generally distributed in Nebraska are described and illustrated in this circular. Information concerning their distribution and economic value is given. Anyone interested in learning to identify the common native grasses should be able to do so by comparing plant specimens with the illustrations and descriptions herein presented. The work of identifying grasses may seem technical and limited only to botanists or those with similar training. Nearly anyone, however, can learn to identify many of the native grasses if willing to spend a little time and effort.
Rhythm In Blossoming, C. O. Rosendahl, A. O. Dahl
Rhythm In Blossoming, C. O. Rosendahl, A. O. Dahl
Journal of the Minnesota Academy of Science
No abstract provided.
Peat And Other Plant Residues Of Grand Marais And Lake Tasse, Iberia Parish, Louisiana., William Rufus Dodson
Peat And Other Plant Residues Of Grand Marais And Lake Tasse, Iberia Parish, Louisiana., William Rufus Dodson
LSU Historical Dissertations and Theses
No abstract provided.
A Microscopic Study Of Cross-Sections Of Woody Dicotyledonous Stems With Reference To Their Use In Courses In Elementary Botany, Nancy Jane Toms
A Microscopic Study Of Cross-Sections Of Woody Dicotyledonous Stems With Reference To Their Use In Courses In Elementary Botany, Nancy Jane Toms
University of the Pacific Theses and Dissertations
The problem of this study was to discover a woody dicotyledonous stem which could be used as the principal example of stem structure in a course in elementary botany.
Manual Of The Grasses Of The United States, A. S. Hitchcock
Manual Of The Grasses Of The United States, A. S. Hitchcock
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Introduction 1
Uses of grasses 1
Distribution of grasses 5
Morphology of grasses 6
Classification of grasses 10
Nomenclature 12
Common names 14
Scope of the manual 14
Gramineae (Poaceae), the grass family 15
Descriptions of the subfamilies and keys to the tribes 16
Subfamily 1. Festucoideae 16
Subfamily 2. Panicoideae 17
Descriptions of the tribes and keys to the genera 17
Tribe 1. Bambuseae 17
Tribe 2. Festuceae 17
Tribe 3. Hordeae 20
Tribe 4. Aveneae 21
Tribe 5. Agrostideae 22
Tribe 6. Zovsieae 24
Tribe 7. Chlorideae 24
Tribe 8. Phalarideae. 25
Tribe 9. Oryzeae 25
Tribe 10. …
A Study Of The Plant Ecology Of Salt Lake And Utah Valleys Before The Mormon Immigration, John Homer Wakefield
A Study Of The Plant Ecology Of Salt Lake And Utah Valleys Before The Mormon Immigration, John Homer Wakefield
Theses and Dissertations
This study is an attempt to bring together such available material , heretofore not collected, into a single compilation pertaining to the plant associations of Utah and Salt Lake Valleys. An endeavor is made to build a picture of the vegetation as it was before the pioneers entered these valleys as compared with what it is today. The material compiled here is the result of searching through all available sources such as government reports of geological explorations, private diaries of explorers and pioneers , contemporary magazines, books and newspapers .
A Preliminary List Of The Flora Of The Perkiomen Region, Whorten A. Kline, Thomas R. Brendle, Joseph R. Mumbauer
A Preliminary List Of The Flora Of The Perkiomen Region, Whorten A. Kline, Thomas R. Brendle, Joseph R. Mumbauer
Faculty Monographs and Chapters
41 page annotated list of vascular plants collected by the authors in and around the Perkiomen Creek in Montgomery County, Pennsylvania. "About the year 1915 Dr. Kline, Brendle and Mumbauer began to make weekly collecting trips. This preliminary catalogue rests mostly upon the work done on these trips." [from the Foreword]
Bulletin No. 3: Catalogue Of The Flowering Plants And Ferns Of Springfield, Massachusetts, Growing Without Cultivation, Luman Andrews, A Committee Of The Springfield Botanical Society
Bulletin No. 3: Catalogue Of The Flowering Plants And Ferns Of Springfield, Massachusetts, Growing Without Cultivation, Luman Andrews, A Committee Of The Springfield Botanical Society
Public Domain Books
No abstract provided.
Rocky Mountain Flowers, Frederic E. Clements, Edith Schwartz Clements
Rocky Mountain Flowers, Frederic E. Clements, Edith Schwartz Clements
School of Biological Sciences: Faculty Publications
AN ILLUSTRATED GUIDE FOR PLANT-LOVERS AND PLANT-USERS WITH TWENTY-FIVE PLATES IN COLOR AND TWENTY-TWO PLATES IN BLACK AND WHITE
The present book is an endeavor to present the materials of the Rocky Mountain flora in preliminary form from the standpoint of the experimental ecologist. The latter is concerned primarily with the relationships of "species" and their subdivisions as an organic expression or measure of habitat differences, and of the competitive relations of the various formations. Whatever the taxonomic value of the numerous segregates of the last decade or two, the fact that the binomial form conceals the relationship to the …
On The Movements Of Petals, Esther Pearl Hensel
On The Movements Of Petals, Esther Pearl Hensel
Papers from the University Studies series (University of Nebraska)
The following paper has to do with an investigation of the physical causes· which bring about opening and closing movements, periodic or otherwise, of certain flowers. With that end in view, seven different species of flowering plants have been experimented upon directly, a much larger number being simply observed with respect to the nature, time, etc., of their anthotropic movements. Movement consists in the corolla taking upon itself either the open or closed position for certain periods of the day or night; for example, the morning glory (Ipomoea purpurea) opens early in the morning (from 4:00 to 5 …
The Grasses Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor
The Grasses Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor
School of Biological Sciences: Faculty Publications
Dr Bessey was the Nebraska State Botanist and Professor of Botany at University of Nebraska. This report contains a classification list of grasses found in the state and brief comments on the usefulness of the various grasses.
Report Of A Botanical Exploration Of The Sand-Hill Region Of Central Nebraska Made In The Summer Of 1893., Per Axel Rydberg
Report Of A Botanical Exploration Of The Sand-Hill Region Of Central Nebraska Made In The Summer Of 1893., Per Axel Rydberg
School of Biological Sciences: Dissertations, Theses, and Student Research
Rydberg (1860–1931) was born Sweden and emigrated to the United States in 1882, first to mining camps in upper Michigan and eventually to Wahoo, in Saunders County, Nebraska, where he taught mathematics from 1884 to 1893 at now defunct Luther Academy. In the summers of 1891-1893, 1895, and 1896 he was a field agent for the United States Department of Agriculture and collected plants in Nebraska, South Dakota, Montana, Idaho, Wyoming, and Colorado, and specimens from those and other trips are in the Bessey Herbarium at the University of Nebraska–Lincoln, which house what is now known as the Charles E. …
A Second Report Upon The Native Trees And Shrubs Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor
A Second Report Upon The Native Trees And Shrubs Of Nebraska, Charles E. Bessey, Robert Bolin , Depositor
School of Biological Sciences: Faculty Publications
Dr. Bessey was then Nebraska State Botanist and “Professor of Botany, State University, Lincoln Nebraska.” The State University is now called that University of Nebraska–Lincoln. This document was published as a contribution to the knowledge of the native woody plants of the state. Several reports had been published previously each containing additions and corrections. This report contains a “Special Request” that asked readers around the state to send samples of native trees and shrubs to the author.
The report contains a classification list of the various trees and shrubs along with information about where they can be found. A table …
Preliminary Notes On The Epinasty And Hyponasty Of Raphainus Cotyledons, E. P. Sheldon
Preliminary Notes On The Epinasty And Hyponasty Of Raphainus Cotyledons, E. P. Sheldon
Journal of the Minnesota Academy of Science
No abstract provided.
Some Early Philadelphia Botanists; Schweintz, Nuttall, Rafinesque And Darlington, W. E. Leonard
Some Early Philadelphia Botanists; Schweintz, Nuttall, Rafinesque And Darlington, W. E. Leonard
Journal of the Minnesota Academy of Science
No abstract provided.
Plants Of Maine: Our Native Flora & Some Notes On Maine Cattle, F. Lamson Scribner
Plants Of Maine: Our Native Flora & Some Notes On Maine Cattle, F. Lamson Scribner
Maine Collection
Plants of Maine: Our Native Flora & Some Notes on Maine Cattle
by F. Lamson Scribner
Two articles originally published in "Agriculture of Maine 1874-5, 19th Annual Report of the Secretary of the Maine Board of Agriculture."
Contents:Ornamental and Useful Plants of Maine / Some Notes on Maine Cattle