Late Pleistocene and Postglacial Plant Communities of the Great Lakes Region. - Limiting Factors in Paleoenvironmental Reconstruction. - Taxonomic and Stratigraphic Significance of the Dispersed Spore Genus Calamospora. - Depositional and Floristic Interpretations of a Pollen Diagram from Middle Eocene Claiborne Formation Upper Mississippi Embayment. - Toward an Understanding of the Reproductive Biology of Fossil Plants. - A Geobotanical Overview of the Bryophyta. - Modern and Paleocene Metasequoias: A Comparison of Foliage Morphology. - A Middle Pennsylvanian Nodule Flora from Carterville Illinois. - Paleobotanical and Geological Interpretations of Paleoenvironments of the Eastern Interior Basin. - Preliminary Investigation of Two Late Triassic Conifers from York County Pennsylvania. - North American Primitive Paleozoic Charophytes and Descendents. - Calcification of Filaments of Boring and Cavity-Dwelling Algae and the Construction of Micrite Envelopes. - An Agricultural Revolution in the Lower Great Lakes. - The Place of the Amerindian in the Origin of the Southern Appalachian Grass Balds. - Suspended Sediment and Plankton Relationships in Maumee River and Maumee Bay of Lake Erie. - The Return of Aquatic Vascular Plants into the Great Lakes Region after Late-Wisconsin Glaciation. Language: English