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Articles 1 - 16 of 16
Full-Text Articles in Life Sciences
Laboubeniales On Semiaquatic Hemiptera. Iv. Addenda To Prolixandromyces, Richard K. Benjamin
Laboubeniales On Semiaquatic Hemiptera. Iv. Addenda To Prolixandromyces, Richard K. Benjamin
Aliso: A Journal of Systematic and Floristic Botany
Three new species of Prolixandromyces (Ascomycetes: Laboulbeniales), all parasites on Velia (Hemiptera: Veliidae), are described and illustrated: P. lingulatus, P. rhinoceralis, and P. tenuis. A key to the five species presently known is given. The two species described originally, P. veliae and P. corniculatus, were found in Michoacan in southern Mexico; the range of P. corniculatus is extended to El Salvador. Prolixandromyces lingulatus and P. rhinoceralis were collected in Nicaragua and P. tenuis m Costa Rica.
Wood Anatomy Of Chloanthaceae (Dicrastylidaceae), Sherwin Carlquist
Wood Anatomy Of Chloanthaceae (Dicrastylidaceae), Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Studies In Stylidiaceae: Monocotyly In The Family; Nomenclatural Change, Sherwin Carlquist
Studies In Stylidiaceae: Monocotyly In The Family; Nomenclatural Change, Sherwin Carlquist
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Wood And Leaf Anatomy Of Keckiella (Scrophulariaceae): Ecological Considerations, David C. Michener
Wood And Leaf Anatomy Of Keckiella (Scrophulariaceae): Ecological Considerations, David C. Michener
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Soil Chemistry Relationships Of The Tecate Cypress In The Santa Ana Mountains, California, David E. Sottlemeyer, Earl W. Lathrop
Soil Chemistry Relationships Of The Tecate Cypress In The Santa Ana Mountains, California, David E. Sottlemeyer, Earl W. Lathrop
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
A Flora Of The Higher Ranges And The Kelso Dunes Of The Eastern Mojave Desert In California, Robert P. Thorne, Barry A. Prigge, James Henrickson
A Flora Of The Higher Ranges And The Kelso Dunes Of The Eastern Mojave Desert In California, Robert P. Thorne, Barry A. Prigge, James Henrickson
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
The Bell Natural History Museum, An Aid To Teaching Botany, Harold W. Hansen
The Bell Natural History Museum, An Aid To Teaching Botany, Harold W. Hansen
Journal of the Minnesota Academy of Science
Much of the regular academic year does not lend itself to observation of plants in their natural habitat outdoors. The museum exhibits can serve as study aids in the off season, although they should not be utilized as substitutes for field work. This study systematized some materials available for class use. Museum files, display legends, and original observations were used. From the Bell Museum of Natural History, 112 exhibits were listed and coded for location; 384 specimens, of 247 species were listed from individual displays; a massed alphabetized species index was prepared. The exhibit "Maple-Basswood Forest" was studied in detail; …
Lichen Studies On Allison Savanna, Clifford Wetmore
Lichen Studies On Allison Savanna, Clifford Wetmore
Journal of the Minnesota Academy of Science
Soil and tree lichens were studied on the Helen Allison Savanna in Anoka County, Minnesota. Sample plots established in parts of the savanna have had fires at various time frequencies, and one section has had no recent fires. Fire has not eliminated any lichen species on the trees but has reduced their frequency in the lower trunk plots. Most soil species of lichens are eliminated by even infrequent fires. Fifty two species were found on trees and 13 species on the soil.
Composition Of Goldenrod (Solidago: Compositae) Populations By Species In The Upper Midwest, William E. Miller
Composition Of Goldenrod (Solidago: Compositae) Populations By Species In The Upper Midwest, William E. Miller
Journal of the Minnesota Academy of Science
In each of 100 abandoned agricultural fields grown over with goldenrod, stems were diagnosed and counted in 20 occupied 0.4 M plots selected by hoop tossing. Preliminary results differed little between hoop tossing and random plot selection, and between 0.9 and 0.4 m plot sizes. In rank order of stem abundance the taxa were Solidago altissima L. S. canadensis L. complex S. gigantea Ait. S. graminifolia (L.) Saliab. S. nemoralis Ait. S. ulmifolia muhl. others. An average of 2.2 taxa were recorded per field, and three or more taxa in at least one plot in 34 percent of fields. Where …
Classification And Protection Status Of Remnant Natural Plant Communities In Arkansas, William F. Pell
Classification And Protection Status Of Remnant Natural Plant Communities In Arkansas, William F. Pell
Journal of the Arkansas Academy of Science
A classification and inventory of Arkansas's remaining tracts of relatively undisturbed vegetation was initiated in 1979. Based on extensive literature surveys and field work, the classification includes five physiognomic classes, 17 cover classes, and 46 cover types, arranged hierarchically. High quality examples of ten of the cover types have been located in designated wilderness or state natural areas, where they are protected by law, while an additional three occur in research natural areas or Forest Service special interest areas. The remaining 33 cover types have no known long-term protection. Lands having wilderness, state natural area, research natural area, or special …
Fluorgraphic Technique For Detecting And Recording Chlorophyll And Its Derivatives On Paper And Thin-Layer Chromatograms, James L. Wickliff
Fluorgraphic Technique For Detecting And Recording Chlorophyll And Its Derivatives On Paper And Thin-Layer Chromatograms, James L. Wickliff
Journal of the Arkansas Academy of Science
Light from a blacklight lamp (General Electric BLB) is restricted to a waveband range 360 - 470 nm by cut-off filters consisting of 4cm 1 M aqueous CuSO4 and acrylic plastic sheets. This filtered lamp emission is used to excite the characteristic red fluorescence of chlorophyll and its derivatives on paper or thin-layer chromatograms. Fluorescent spots are detected and recorded by exposure of red-sensitive panchromatic photographic printing paper (Kodak Panalure) to the fluorescing chromatogram. A thin yellow filter interposed between the chromatogram and the photo print paper restricts the detected fluorescence to wavelengths greater than about 500 nm. Standard development …
Additional Records And Updates On The Arkansas Flora, Richard Davis
Additional Records And Updates On The Arkansas Flora, Richard Davis
Journal of the Arkansas Academy of Science
No abstract provided.