Volume 46 – Issue 4 (Dec 1981)

North Carolina: Availability of Research Funds. Additions to the Vascular Plant Flora of West Virginia. <em>Fimbristylis Perpusilla</em> Harper in South Carolina. Kentucky Academy of Science Foundation for Botanical Research in Kentucky. New County Records for Endangered and Threatened Species in Tennessee. University of Georgia Herbarium News. New Secretary and Treasurer of Holly Society of America, Inc. An Apology.

ABSTRACT State records or otherwise interesting reports for 21 foreign species of vascular plants are given for the southern United States. Most of the 21 appear to be weedy adventives either from the north or west, or spreading rapidly within the southern states; a few seem to be naturalizing escapes from gardens or nurseries.

ABSTRACT <em>Hypericum graveolens</em> and <em>H. mitchellianum</em> are sympatric in the high mountains of North Carolina and Tennessee. In this region three areas were found where few to many individuals were judged to be morphologically intermediate between the putative parents. These three populations as well as five populations of each of the putative parents were studied through morphological analysis. Breeding experiments conducted in the field as well as in the Botanical Garden showed that the hybrids produced experimentally were morphologically similar to the natural populations of intermediate plants. Hybridization must be occurring naturally to form the observed intermediates.

Book Review: Pennsylvania Flora Atlas

ABSTRACT <em>Ophioglossum dendroneuron</em> E. P. St. John was described from Florida, and characterized by having a complex venation pattern with small areoles contained within larger areoles. W. Wagner and Mesler interpreted this as a distinct species; however, the present investigation alters this conception and the taxon <em>O. dendroneuron</em> is reinterpreted as a form of <em>O. nudicaule</em> L. fils. Extensive field and culture chamber observations show a transition from small-bladed forms with simple venation involving few or no included veinlets, to large-bladed forms with complex venation involving numerous included veinlets, some of which join to form secondary areoles. The latter bireticulate condition is transitional toward the venation found in <em>O. engelmannii</em> Prantl.

ABSTRACT The flora of the Highbanks (Doty’s Highbank), a part of Hueston Woods State Park, has been studied over a period of years, the result being the accumulation of a substantial list of native plants (several of which are endangered or threatened). The site is of vegetational interest in that it is an oak-hickory stand occurring in what is generally considered to be a beech-maple forest region. The local edaphic and geologic conditions probably contribute to the vegetational and floristic distinctiveness of the Highbanks site. We hope that our studies will lead to a better appreciation, and possible further preservation, of this unusual locality.

Book Review: Sampling Design and Statistical Methods for Environmental Biologists

ABSTRACT The aquatic families of the Arecidae occurring in Alabama include Araceae and Lemnaceae. A key to the taxa and, for each of the species, county dot distribution maps and characteristics are presented.

Book Review: Advances in Botanical Research

ABSTRACT A polyspecies complex including six <em>Viola</em> species and several hybrid forms was found in Poole Knobs Recreation Area, LaVergne (Rutherford County), Tennessee. A total of seven contiguous colonies was located, including approximately 200 individuals, a number of which were considered hybrids based on exomorphology. Species involved were <em>V. palmata</em>, <em>V. missouriensis</em>, <em>V. sororia</em>, <em>V. triloba</em>, <em>V. hirsutula</em>, all acaulescent blue violets, and <em>V. pubescens</em>, a caulescent yellow violet. Most hybrids appeared fertile except for one, and two possibilities as to its origin are presented. A considerable range extension for <em>V. palmata</em> is noted. This group represents one of the largest arrays of violets occurring sympatrically reported to date.