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Full-Text Articles in Life Sciences
Pollen Of The Myricaceae - A Preliminary Report, Marshall D. Sundberg
Pollen Of The Myricaceae - A Preliminary Report, Marshall D. Sundberg
Journal of the Minnesota Academy of Science
Pollen of 16 species and one variety of the Myricaceae was examined, including members of each of the genera proposed by Chevalier (1901) in addition to Canacomyrica (Guillaumin, 1939). Comparison of pollen characters within genera, within sections, between sections, and between genera suggests that the Myricaceae can be divided into four genera: Canacomyrica; Comptonia; Gale; and Myrica. The genus Myrica can be further divided into three sections; Cerophora, Fava, and Morella.
Early Pollen Forcing In A White X Black Spruce Hybrid And Its Parental Species, Lawson L. Winton
Early Pollen Forcing In A White X Black Spruce Hybrid And Its Parental Species, Lawson L. Winton
Journal of the Minnesota Academy of Science
Viable pollen was successfully forced from winter-collected cuttings of white and black spruce, as well as of a hybrid of them. The natural time difference in flowering was overcame, thus providing a tool for interbreeding these species. During forcing, and naturally on the trees, pollen always shed from white spruce first, then the hybrid and finally from black spruce. Using departures from long-range weather averages, a heat-requirement difference was postulated for each species to account for the time difference in their flowering.
A Comparison Of The Hyde And Durham Air-Borne Pollen Collecting Shelters, A. Orville Dahl, John R. Rowley
A Comparison Of The Hyde And Durham Air-Borne Pollen Collecting Shelters, A. Orville Dahl, John R. Rowley
Journal of the Minnesota Academy of Science
No abstract provided.
A Preliminary Pollen Study From A Fossil Bison Site In St. Paul, Minnesota, Joanne Rowley
A Preliminary Pollen Study From A Fossil Bison Site In St. Paul, Minnesota, Joanne Rowley
Journal of the Minnesota Academy of Science
No abstract provided.
Verical Migration Of A Spherical And Aspherical Pollen In A Sphagnum Bog, John R. Rowley, Joanne Rowley
Verical Migration Of A Spherical And Aspherical Pollen In A Sphagnum Bog, John R. Rowley, Joanne Rowley
Journal of the Minnesota Academy of Science
No abstract provided.
Pollen Evidence, A. Orville Dahl
Pollen Evidence, A. Orville Dahl
Journal of the Minnesota Academy of Science
No abstract provided.