Botany Commons^™

Comptonia Peregrina (L.) J.M. Coult., John E. Ebinger

Specimens by Name

No abstract provided.

Lysimachia Quadrifolia L., John E. Ebinger

Specimens by Name

No abstract provided.

Anagallis Arvensis L., John E. Ebinger

Specimens by Name

No abstract provided.

Parthenocissus Planch., John E. Ebinger

Specimens by Name

No abstract provided.

Myrica Pensylvanica Mirb., John E. Ebinger

Specimens by Name

No abstract provided.

X Lysimachia Producta (A. Gray) Fernald (Pro Sp.) [Quadrifolia × Terrestris], John E. Ebinger

Specimens by Name

No abstract provided.

Vitis Riparia Michx., George Neville Jones

Specimens by Name

No abstract provided.

Ligustrum Obtusifolium Siebold & Zucc., George Neville Jones

Specimens by Name

No abstract provided.

Morus Alba Var. Tatarica (L.) Ser., Virginius H. Chase

Specimens by Name

No abstract provided.

Acer Pensylvanicum L., B. Boivin, K. W. Spicer

Specimens by Name

No abstract provided.

Vitis Vulpina L., William S. James

Specimens by Name

No abstract provided.

Viola Sororia Willd., Virginius H. Chase

Specimens by Name

No abstract provided.

Iron Chlorosis In Higher Plants As Related To The Organic Acid Content, Lucia Yulin Su

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chlorosis, which is associated with a reduction in the chlorophyll content of leaves, is a major problem in the growing of deciduous fruit trees and some field crops on Western soils (16). For the deciduous fruit and field crops the predominant chlorosis pattern is the iron deficiency type which on Western soils is associated with high bicarbonate concentration in the soil.

Embryo Sac Development Of An Intergeneric Hybrid Between Lycopersicon Esculentum Mill. And Solanum Lycopersicoides Dun., Ray William Bills

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the search for sources of resistance to the curly top virus disease of tomatoes (Lycopersicon esculentum), it was found by some investigators that certain species of the genus Solanum express an apparent immunity to the disease. It would be desirable to transfer the resistance expressed by the genus Solanum into the genus Lycopersicon. The major problem to the plant breeder becomes one of obtaining a compatible F₁ hybrid between the Lycopersicon and Solanum genera through which genes controlling resistance may be transfered to Lycopersicon. In 1951, C. M. Rick reported a successful cross between …

Viola Rafinesquii Greene, Virginius H. Chase

Specimens by Name

No abstract provided.

Phyla Lanceolata (Michx.) Greene, L. J. Gier

Specimens by Name

No abstract provided.

Bulletin No. 12: Connecticut's Coastal Marshes, A Vanishing Resource, Richard H. Goodwin

Bulletins

Testimony of various authorities as to the value of our tidal marshes and a suggested action program. Second printing with supplement 1966. 36 pp.

Arisaema Triphyllum, Jack-In-The-Pulpit, In Minnesota, Especially At The Cedar Creek Natural History Area, Sadao Sakamoto

Journal of the Minnesota Academy of Science

Arisaema triphyllum (L.) Schott is a member of the Araceae, or Arum family and is distributed widely in temperate regions of North America, from Nova Scotia to Florida, Ontario, Minnesota, Kansas. and Louisiana. Various aspects of this species have been investigated by many botanists since the last decade of the 19th century.

The Influence Of Soil On Germination Of Fungus Spores, Roy D. Wilcoxson

Journal of the Minnesota Academy of Science

Soil prevents spores of many fungi from germinating, according to reports from different parts of the world. Thus Welsh soils were reported to be fungistatic to several fungi (Dobbs, 1953). Jackson (1958) made a similar report about Nigerian soils. In Minnesota Fusarium oxysporium f. lini (Bolley) Sny. and Han. persists in soil devoid of host debris but Helminthosporium sativum P.K.B. does not (Anwar, 1949). A more thorough study of the influence of Minnesota soils on germination of fungus spores would provide additional information on ecology of fungi and might suggest control measures for certain pathogens. Such a study may be …

The Excised Embryo Culture Method For Controlled Seedling Growth Of The Sweet Fern, Comptonia Peregrina, Of The Family Myricaceae, Helen E. Heino

Journal of the Minnesota Academy of Science

Sweet fern, Comptonia peregrina (L.) Coult. according to Fernald (1950), in older literature often referred to as Myrica asplenifolia L. or Comptonia asplenifolia (L.) Ait., is the only species in this genus. It is a low branching, stoloniferous shrub up to a meter and a half tall, with linear-lanceolate leaves that are regularly and deeply pinnatifid giving a fern-like appearance, though it is not at all related to the ferns. It has a characteristic sweet resinous scent. The plants are monoecious or dioecious, flowers are in catkins; staminate catkins are slender and cylindrical; pistillate catkins become a spherical bur-like fruit. …

A Study Of Annual Accumulation Of Organic Matter In A Five-Year Old Larix Laricina, Vincent A. Heig

Journal of the Minnesota Academy of Science

The purpose of this study is to evaluate a method of calculating the annual accumulation of xylem in shoot system of a tree. Larix laricina was ideally suited for this study because of several structural traits. Its terminal bud scale scars or girdles remain visible up to approximately eight years after their formation and make it possible to differentiate between each year's addition in stem length. It has one dominant leader bud which forms a straight main axis facilitating the differentiation between axial and secondary branch growth. Larix laricina also has growth rings which can be easily identified when cross …

Relations Between Certain Vegetational Characters And Ground Water Level In A Mixed Hardwood Community In East-Central Minnesota, J. P. Lindmeier, J. R. Tester, D. W. Warner

Journal of the Minnesota Academy of Science

This report describes the vegetation of a mixed hardwood community in terms of species composition, frequency, areal cover and height classes in relation to ground water level. An attempt is made to show how known changes in ground water level during the past 25 years have brought about changes in the vegetation.

Fruit And Seed Project Of The Cedar Creek Natural History Area, Frieda L. Wertman, D. B. Lawrence

Journal of the Minnesota Academy of Science

The program was initiated with the support of the Graduate School of the University of Minnesota in May, 1960 through the interest of Dean T. C. Blegen. There are four major objectives: (1) To establish a collection of ripe fruits and seeds to provide a permanent reference file of the entire seed plant flora of the area newly mapped through a grant from the National Science Foundation. (2) To prepare duplicate sets of standard herbarium mounts of material with ripe disseminules, one set for the laboratory at Cedar Creek, the other for the Herbarium of the Department of Botany of …

Pollen Morphology Of Rapateaceae, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Ivan M. Johnston-Western Botanist, Philip A. Munz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Wood Anatomy Of Inuleae (Compositae), Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Addenda To "The Merosporangiferous Mucorales", R. K. Benjamin

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Collecting Plant Specimens. 1. Specimens For Identification, Robert Dunlop Royce

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

PLANT NAMES and the naming of plant specimens are of fundamental importance in many branches of science, including agriculture.

To the farmer, too, accuracy in naming poisonous plants and weeds, as well as fodder and pasture species, can save much trouble and expense, and may be responsible for avoiding heavy stock losses.

Collecting Plant Specimens. 2. Specimens For Disease Identification, G C. Macnish

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

PLANT SPECIMENS submitted to the Department of Agriculture for disease identification are referred to officers of the Plant Pathology Branch, and in most cases a rapid diagnosis can be made.

Remarks On The Ipomopsis Aggregata Group, Edgar T. Wherry

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.