<i>Transactions of the Nebraska Academy of Sciences</i> Volume XVI (1988): Table of Contents

Abstract

Nebraska Academy of Sciences, Officers, Policy committee ............. ii Editorial Board ............. iv Membership Objectives and Friends of the Academy ............. vi Biological and Medical Sciences The vascular flora of the Niobrara Valley Preserve and adjacent areas in Nebraska (Churchill, Freeman, and Kantak) ............. 1-15 Butterflies of the Niobrara Valley Preserve (Neil E. Dankert and Harold G. Nagel) ............. 17-30 An annotated list of the vascular plants of Fontenelle Forest and Neale Woods in eastern Nebraska (Marjorie Mueller Garabrandt) ............. 31-49 Interpreting modem and paleo-environments by analysis of water-stress in xylem: examples from Nebraska and Arkansas (James Landon) ............. 51-61 Habitat utilization by an introduced fish, Gambusia affinis, in Nebraska (Actinopterygii: Poeciliidae) (John D. Lynch) ............. 63-67 A water-quality assessment using aquatic macroinvertebrates from streams of the Long Pine Creek watershed in Brown County, Nebraska (Terry R. Maret) ............. 69-84 New distributional records of lizards in Wyoming (Randall Morrison and Lawrence Powell) ............. 85-86 A new species of Aphodius (Coleoptera: Scarabaeidae: Aphodiinae) from Nebraska (Brett C. Ratcliffe) ............. 87-89 The vascular flora and plant communities of Seward County, Nebraska (Steven B. Rolfsmeier) ............. 91-114 New and corrected floristic records for Nebraska (Rolfsmeier, Kaul, Garabrandt, and Sutherland) ............. 115-122 Seed-germination studies of Psoralea esculenta Pursh (Indian turnip) and Psoralea argophylla Pursh (silver scurfpea) (Linda L. Spessard) ............. 123-126 Earth Sciences Late Pleistocene pronghorn, Antilocapra americana, from Natural Trap Cave, Wyoming (Chorn, Frase, and Frailey) ............. 127-140 Lagomorphs (Mammalia) from the Oligocene (Orellan and Whitneyan) Brule Formation, Nebraska (William W. Korth and Jeffrey Hageman) ............. 141-152 Saber-toothed cats from the Plio-Pleistocene of Nebraska (Martin, Schultz, and Schultz) ............. 153-164 The giant marmot Paenemarmota sawrockensis (new combination) in Hemphillian deposits of northeastern Nebraska (Michael R. Voorhies) ............. 165-172 Systematics and population ecology of Late Pleistocene bighorn sheep (Ovis canadensis) of Natural Trap Cave, Wyoming (Xiaoming Wang) ............. 173-184 History of Science Roscoe Pound and the Seminarium Botanicum at the University of Nebraska, 1888-1889 (Michael R. Hill) ............. 185-190 Historical notes on collections and taxonomy of Penstemon haydenii S. Wats. (blowout penstemon), Nebraska&#39;s only endemic plant species (David M. Sutherland) ............. 191-194