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Systematic studies in the Poaceae and Cyperaceae /
(The University of Oklahoma., 1985)
Descriptions of the following genera were prepared for the volume treating the Poaceae for the Vascular Flora of the Southeastern United States: Ammophila, Arrhenatherum, Brachyelytrum, Briza, Cynosurus, Dactyloctenium, ...
Studies in the Cactaceae.
(1980)
Five taxa representing the three tribes of the Cactaceae have similar patterns of stamen and carpel initiation but display differences in early receptacle development. The first ring of stamens and the carpels arise ...
Biosystematic studies in the Echinocereus viridiflorus complex.
(1980)
Pollen of the Echinocereus viridiflorus complex is uniform throughout the group. The pollen is isopolar, radially symmetrical, prolate spheroidal, tricolpate, and 44 - 52 (mu) in diameter with a puncti-baculate exine. ...
Studies in the Danthonieae (Poaceae) /
(1984)
Finally, treatments of the genera and species of Arundo, Phragmites, and Danthonia in the southeastern United States are presented.
Systematic studies in Physalis (Solanaceae) /
(1984)
(4) Physalis (for the Vascular Flora of the Southeastern United States). Measurements were made from over 6,500 herbarium sheets and personal collections, and updated keys and descriptions were written for the 20 species ...
Pollen characters in relation to the delimitation of Myrtales.
(1982)
Pollen representative of the Lythraceae, Punicaceae, Sonneratiaceae, Trapaceae, Oliniaceae, Combretaceae, Alzateaceae, Penaeaceae, Crypteroniaceae, Melastomataceae, Myrtaceae and Onagraceae was examined with SEM and TEM. ...
Studies in the dinoflagellate genera, Peridinium and Peridiniopsis.
(1981)
Photoheterotrophy occurs in Peridinium willei, P. limbatum, P. inconspicuum, and Peridiniopsis polonicum. All species tested exhibited photoheterotrophy except P. volzii. Growth of all species was strongly depressed by ...
Allelopathic potential of wheat accessions /
(1984)
Root exudates of 286 accessions of hard red winter wheat (Triticum aestivum L.) were compared with that of a commercial strain 'T 64' for their relative ability to inhibit root and shoot growth of Japanese brome (Bromus ...
Morpho-geographical analysis of Veronica section Beccabunga.
(1983)
Veronica section Beccabunga occurs primarily in the temperate regions of the land masses of the northern and southern hemispheres with the exception of Australia and New Zealand, where it is a rare introduction. Computer ...