Five Year Index to Oklahoma Native Plant Record Volume 12 4 Possible Mechanisms of the Exclusion of Johnson Grass by Tall Grass Prairies, M. S. thesis, Marilyn A. Semtner 33 A Preliminary Pawnee Ethnobotany Checklist, C. Randy Ledford 43 Vascular Flora of Alabaster Caverns State Park, Cimarron Gypsum Hills, Woodward County, Oklahoma, Gloria M. Caddell and Kristi D. Rice 63 A Comparison of the Composition and Structure of Two Oak Forests in Marshall and Pottawatomie Counties, Bruce Smith 69 Critic’s Choice Essay: Virtual Herbaria Come of Age, Wayne Elisens Volume 13 4 Ecology and Taxonomy of Water Canyon, Canadian County, Oklahoma, M. S. thesis, Constance A. Taylor 29 A Checklist of the Vascular Flora of the Mary K. Oxley Nature Center, Tulsa County, Oklahoma, Amy K. Buthod 48 Smoke-Induced Germination in Phacelia strictaflora, Stanley A. Rice and Sonya L. Ross 55 Critic’s Choice Essay: A Calvacade of Oklahoma Botanists in Oklahoma – Contributors to our Knowledge of the Flora of Oklahoma, Ronald J. Tyrl and Paula A. Shryock Volume 14 4 Flora of Kiowa County, Oklahoma, M. S. thesis, Lottie Opal Baldock 38 Gardens of Yesteryear, Sadie Cole Gordon 43 Oklahoma Deciduous Trees Differ in Chilling Enhancement of Budburst, Stanley A. Rice and Sonya L. Ross 50 Mapping Distribution in Oklahoma and Raising Awareness: Purple Loosestrife (Lythrum salicaria), Multiflora Rose (Rosa multiflora), and Japanese Honeysuckle (Lonicera japonica), Katherine E. Keil and Karen R. Hickman 67 Non-Twining Milkweed Vines of Oklahoma: An Overview of Matelea biflora and Matelea cynanchoides (Apocynaceae), Angela McDonnell 80 Critic’s Choice Essay: Pollination Ecology of Our Native Prairie Plants, Gloria M. Caddell Volume 15 4 Preface to First Flowering Dates for Central Oklahoma, Wayne Elisens 6 First Flowering Dates for Central Oklahoma, Ben Osborn 19 Forest Structure and Fire History at Lake Arcadia, Oklahoma County, Oklahoma (1820–2014), Chad King 31 Interplanting Floral Resource Plants with Vegetable Plants Enhances Beneficial Arthropod Abundance in a Home Garden, Chrisdon B. Bonner, Eric J. Rebek, Janet C. Cole, Brian A. Kahn, and Janette A. Steets 49 Contributions to the Flora of Cimarron County and the Black Mesa Area, Amy K. Buthod and Bruce W. Hoagland 78 Antifungal Activity in Extracts of Plants from Southwestern Oklahoma Against Aspergillus flavus, Tahzeeba Frisby and Cameron University students 96 Kudzu, Pueraria montana (Lour.) Merr. Abundance and Distribution in Oklahoma, Marli Claytor and Karen R. Hickman 105 Critic’s Choice Essay: Mistletoe, Phoradendron serotinum (Raf.) Johnston, Paul Buck Volume 16 4 Pollination Ecology of Sabatia campestris Nutt. (Gentianaceae), Constance E. Taylor 10 The Structure of the Gynostegium, Breeding System, and Pollination Ecology of Spider Milkweed, Asclepias viridis Walt. (Apocynaceae), M. S. thesis, Shang-Wen Liaw 45 A Floristic Inventory of the University of Oklahoma’s Kessler Atmospheric and Ecological Field Station, McClain County, Oklahoma, Amy K. Buthod and Bruce W. Hoagland 64 Effects of Fire Severity on Habitat Recovery in a Mixed Grass Prairie Ecosystem, Laura E. Jardine, Adam K. Ryburn, and Anthony J. Stancampiano 78 Critic’s Choice Essay: A Conversation with a Small Beetle, Paul Buck Oklahoma Native Plant Society P.O. Box 14274 Tulsa, Oklahoma 74159-1274 _________________________________________________________________________ In this issue of Oklahoma Native Plant Record Volume 17, December 2017: _________________________________________________________________________ 4 A Study of the Flowering Plants of Tulsa County, Oklahoma, Exclusive of the Grasses, Sedges, and Rushes, M.S. thesis Maxine B. Clark† 37 Laboratory Studies of Allelopathic Effects of Juniperus virginiana L. on Five Species of Native Plants Erica A. Corbett and Andrea Lashley 53 Vascular Flora of E. C. Hafer Park, Edmond, Oklahoma Gloria M. Caddell, Katie Christoffel, Carmen Esqueda, and Alonna Smith 69 First Record of Chorioactis geaster from Oklahoma Clark L. Ovrebo and Sheila Brandon 72 Critic’s Choice Essay: Allelopathy Paul Buck† Five Year Index to Oklahoma Native Plant Record – inside back cover