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Full-Text Articles in Life Sciences
University Of Richmond Herbarium, W. John Hayden
University Of Richmond Herbarium, W. John Hayden
Biology Faculty Publications
The Department of Biology at the University of Richmond, Richmond, Virginia, maintains an herbarium of approximately 15,000 specimens. Although recently assigned the acronym URV, this collection has not yet been included in Index Herbariorum and, consequently, few botanists outside of Virginia are aware of its existence. This note provides a brief account of the history of URV, a summary of its contents, and a short bibliography of works pertaining to the collection.
Wood Anatomy And Relationships Of Neowawraea (Euphorbiaceae), W. John Hayden, Dorthe S. Brandt
Wood Anatomy And Relationships Of Neowawraea (Euphorbiaceae), W. John Hayden, Dorthe S. Brandt
Biology Faculty Publications
Wood anatomy of three specimens of Neowawraea phyllanthoides Rock, a rare and endangered member of Euphorbiaceae endemic to the Hawaiian Islands, is described and compared with woods of other genera of subfamily Phyllanthoideae. Neowawraea has often been associated or synonymized with Drypetes Vahl. Wood of Neowawraea is diffuse porous, perforation plates are simple, imperforate tracheary elements are thin-walled septate fiber-tracheids, rays are heterocellular and crystalliferous, and axial xylem parenchyma is restricted to a few scanty paratracheal and terminal cells. In several respects these results differ from earlier published descriptions of the wood of this taxon; these earlier descriptions are shown …
Wood Anatomy And Relationships Of Betula Uber, W. John Hayden, Sheila M. Hayden
Wood Anatomy And Relationships Of Betula Uber, W. John Hayden, Sheila M. Hayden
Biology Faculty Publications
Wood anatomy of Betula uber (Ashe) Fernald is described and compared with woods of other birches belonging to series Humiles and series Costatae. Anatomically, wood of B. uber is typical of birches in general. On the basis of pore size and frequency, fiber characteristics, axial xylem parenchyma distribution, and absence of aggregate rays, it is argued that B. uber is properly classified in series Costatae. Resolution of its relationships within series Costatae is not apparent from wood data.
Tva Fluid Fertilizers Chapter Two - Agronomic Aspects, Eugene C. Sample, Gary W. Akin, Robert Mikkelsen
Tva Fluid Fertilizers Chapter Two - Agronomic Aspects, Eugene C. Sample, Gary W. Akin, Robert Mikkelsen
Robert Mikkelsen
No abstract provided.
Tva Fluid Fertilizers Chapter One- History, Growth, And Status, Robert Mikkelsen
Tva Fluid Fertilizers Chapter One- History, Growth, And Status, Robert Mikkelsen
Robert Mikkelsen
No abstract provided.
Tva Fluid Fertilizers Chapter Four - Chemical Properties, A W. Frazier
Tva Fluid Fertilizers Chapter Four - Chemical Properties, A W. Frazier
Robert Mikkelsen
No abstract provided.
Tva Fluid Fertilizers Chapter Five - Production, Handling, And Use Of Anydrous Ammonia And Status, G. M. Blouin, H. L. Kimborough, W. J. Sharratt
Tva Fluid Fertilizers Chapter Five - Production, Handling, And Use Of Anydrous Ammonia And Status, G. M. Blouin, H. L. Kimborough, W. J. Sharratt
Robert Mikkelsen
No abstract provided.
Notes: Differences Among Nematode Populations In Tall Fescue Pastures In North, Central, And South Alabama, Jeffrey F. Pedersen, R. Rodriguez-Kabana
Notes: Differences Among Nematode Populations In Tall Fescue Pastures In North, Central, And South Alabama, Jeffrey F. Pedersen, R. Rodriguez-Kabana
Department of Agronomy and Horticulture: Faculty Publications
Surveys of nematode populations in tall fescue (Festuca arundinacea Schreb.) pastures in north, central, and south Alabama in 1982 and 1983 showed significant differences in frequency of occurrence of many nematode species by geographical region. Although nematode damage has been implicated in the poor adaptation of tall fescue to the sandy soils of the extreme Southeast, many plant parasitic nematode species occurred in low frequency in south Alabama pastures. There were significant differences in the frequency of occurrence of Paratrichodorus christiei (Allen) Siddiqi by region. This nematode occurred with relatively high frequency in south Alabama in both years. There were …
Tva Fluid Fertilizers Chapter Seven - Suspension Fertilizers - Production And Use, J Getsinger, Frank Achorn, George Hoffmeister, Robert Mikkelsen
Tva Fluid Fertilizers Chapter Seven - Suspension Fertilizers - Production And Use, J Getsinger, Frank Achorn, George Hoffmeister, Robert Mikkelsen
Robert Mikkelsen
No abstract provided.
Chapter Six - Liquid (Solution) Fertilizers, Frank P. Achorn, Lawrence C. Faulkner, Robert Mikkelsen
Chapter Six - Liquid (Solution) Fertilizers, Frank P. Achorn, Lawrence C. Faulkner, Robert Mikkelsen
Robert Mikkelsen
No abstract provided.
Tva Fluid Fertilizers Chapter Three - Physical Properties Evaluation Aspects, T M. Jones, H L. Balay, Robert Mikkelsen
Tva Fluid Fertilizers Chapter Three - Physical Properties Evaluation Aspects, T M. Jones, H L. Balay, Robert Mikkelsen
Robert Mikkelsen
No abstract provided.