Open Access. Powered by Scholars. Published by Universities.®

Botany Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 9631 - 9660 of 10756

Full-Text Articles in Botany

Acer Rubrum Subsp. Drummondii (Hook. & Arn. Ex Nutt.) E. Murray, John E. Ebinger May 1967

Acer Rubrum Subsp. Drummondii (Hook. & Arn. Ex Nutt.) E. Murray, John E. Ebinger

Specimens by Name

No abstract provided.


Ficus Americana Aubl., F. L. Curry May 1967

Ficus Americana Aubl., F. L. Curry

Specimens by Name

No abstract provided.


Ficus Aurea Nutt., F. L. Curry May 1967

Ficus Aurea Nutt., F. L. Curry

Specimens by Name

No abstract provided.


Histochemical Investigations On The Effects Of Fluoride On Oxidative Enzymes From Pelargonium Zonale And Allium Cepa, Bachettira Wthappa Poovaiah May 1967

Histochemical Investigations On The Effects Of Fluoride On Oxidative Enzymes From Pelargonium Zonale And Allium Cepa, Bachettira Wthappa Poovaiah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of fluoride fumigation on Pelargonium zonale leaves and also sodium fluoride infiltration of leaf sections and Allium cepa roots were studied in vivo.

Anatomical studies of fluoride-injured leaves showed a total collapse of the margin of the injured leaf. In injured regions the upper epidermal cells were normal and were the last to be destroyed. Detailed study of the vascular region of leaves near the injured area and also petioles from severely injured leaves showed clogging of xylem vessels by tyloses. Clogging of sieve tubes occurred, presumably, due to deposition of callose substance on sieve plates of …


Karyotype Analysis As An Index Of Radiosensitivity Of A Grass Hybrid, David R. Braegger May 1967

Karyotype Analysis As An Index Of Radiosensitivity Of A Grass Hybrid, David R. Braegger

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Large differences exist between plant species in their response to ionizing radiation. The factors involved in radiosensitivities are complex and not well understood. The best criterion, so far, in studies on the acute lethal level of radiation for plant species is the average interphase chromosome volume (Sparrow et al. 1963). There are also close relationships that exist between DNA content, nuclear volume, total chromosome volume and radiosensitivity (Bowen, 1962; Sparrow et al. 1963; Sparrow et al. 1965). These investigators have observed in a series of species that an increase in nuclear volume is often accompanied by an increase in DNA …


Claytonia Virginica L., G. A. Hellinga Apr 1967

Claytonia Virginica L., G. A. Hellinga

Specimens by Name

No abstract provided.


Viola Pratincola Greene, G. A. Hellinga Apr 1967

Viola Pratincola Greene, G. A. Hellinga

Specimens by Name

No abstract provided.


Viola Striata Aiton, G. A. Hellinga Apr 1967

Viola Striata Aiton, G. A. Hellinga

Specimens by Name

No abstract provided.


Syringa Vulgaris L., G. A. Hellinga Apr 1967

Syringa Vulgaris L., G. A. Hellinga

Specimens by Name

No abstract provided.


Viola Sororia Willd., G. A. Hellinga Apr 1967

Viola Sororia Willd., G. A. Hellinga

Specimens by Name

No abstract provided.


Volkameria Aculeata L., W. Mcclain Apr 1967

Volkameria Aculeata L., W. Mcclain

Specimens by Name

No abstract provided.


Manilkara Zapota (L.) Van Royen, William Mcclain Apr 1967

Manilkara Zapota (L.) Van Royen, William Mcclain

Specimens by Name

No abstract provided.


Claytonia Virginica L., John E. Ebinger Apr 1967

Claytonia Virginica L., John E. Ebinger

Specimens by Name

No abstract provided.


Viola Rafinesquii Greene, John E. Ebinger Apr 1967

Viola Rafinesquii Greene, John E. Ebinger

Specimens by Name

No abstract provided.


Viola Pratincola Greene, S. C. Mueller Apr 1967

Viola Pratincola Greene, S. C. Mueller

Specimens by Name

No abstract provided.


Viola Sororia Willd., S. C. Mueller Apr 1967

Viola Sororia Willd., S. C. Mueller

Specimens by Name

No abstract provided.


Viola Sororia Willd., S. C. Mueller Apr 1967

Viola Sororia Willd., S. C. Mueller

Specimens by Name

No abstract provided.


Claytonia Virginica L., S.C. Mueller Apr 1967

Claytonia Virginica L., S.C. Mueller

Specimens by Name

No abstract provided.


Dodecatheon Meadia L., S.C. Mueller Apr 1967

Dodecatheon Meadia L., S.C. Mueller

Specimens by Name

No abstract provided.


Lipochaeta Integrifolia (Nutt.) A. Gray, Otto Degener Feb 1967

Lipochaeta Integrifolia (Nutt.) A. Gray, Otto Degener

Specimens by Name

No abstract provided.


Acer Negundo L., T. Phillips Jan 1967

Acer Negundo L., T. Phillips

Specimens by Name

No abstract provided.


Hybridization And Variation Of Ponderosa And Jeffrey Pines On Mt. San Antonio, California, Mark W. Parratt Jan 1967

Hybridization And Variation Of Ponderosa And Jeffrey Pines On Mt. San Antonio, California, Mark W. Parratt

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Records Of Hummingbird Pollination In The Western American Flora: Ii. Additional California Records, Verne Grant, Karen A. Grant Jan 1967

Records Of Hummingbird Pollination In The Western American Flora: Ii. Additional California Records, Verne Grant, Karen A. Grant

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Water Blooms, T E H Aplin Jan 1967

Water Blooms, T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

WHEN a body of water becomes discoloured with a super-abundance of free-floating, microscopic plant or, in rare cases, animal life, it is said to develop a "water bloom."

This article discusses some aspects of the appearance of water blooms, particularly those caused by algae, and with the effects that certain toxic algae have on livestock.


Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium. 1. Characteristics Of The Group, T E H Aplin Jan 1967

Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium. 1. Characteristics Of The Group, T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THE toxic species of the genera Gastrolobium and Oxylobium are a unique group of poison plants which have caused considerable economic loss to stock-raisers in Western Australia ever since the early days of settlement.

These plants are widely distributed over the agricultural areas of the south-west, and, with the opening up of large tracts of land for stock-raising, the danger is as high as it has even been.


Why Botanical Names Are Necessary, Robert Dunlop Royce Jan 1967

Why Botanical Names Are Necessary, Robert Dunlop Royce

Journal of the Department of Agriculture, Western Australia, Series 4

BOTANISTS engaged in naming plants are ofen asked "Why can't you speak English?"

The answer becomes quite clear as the inquirers learn more and more about plants and find people calling the same plant by quite different names.


Department Of Agriculture Services : The Botany Branch And The W.A. Herbarium, Department Of Agriculture, Western Australia Jan 1967

Department Of Agriculture Services : The Botany Branch And The W.A. Herbarium, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

ALTHOUGH the flora of Western Australia strongly attracted early botanists and collectors, it was virtually neglected by settlers faced with a century or more of hard pioneering.

Only recently has enthusiasm for our remarkable flora developed within the State and, with the formation of sponsoring societies and the establishment of the Kings Park Botanic Gardens, native species have become popular in home and civic gardens.


A Flora Of Santa Catalina Island, California, Robert F. Thorne Jan 1967

A Flora Of Santa Catalina Island, California, Robert F. Thorne

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Records Of Hummingbird Pollination In The Western American Flora: Iii Arizona Records, Karen A. Grant, Verne Grant Jan 1967

Records Of Hummingbird Pollination In The Western American Flora: Iii Arizona Records, Karen A. Grant, Verne Grant

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Laboulbeniales On Semi-Aquatic Hemiptera. Laboulbenia., Richard K. Benjamin Jan 1967

Laboulbeniales On Semi-Aquatic Hemiptera. Laboulbenia., Richard K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.