ABSTRACT
Hancock County, in the northern panhandle of West Virginia, had moss representative in the West Virginia University bryophyte collections. following list adds seven families, ten genera, and twelve species, records, to those collections.
ABSTRACT
Hancock County, in the northern panhandle of West Virginia, had moss representative in the West Virginia University bryophyte collections. following list adds seven families, ten genera, and twelve species, records, to those collections.
Notes and News: Necrology and Louisiana
Book Reviews: Flora of Southern Illinois
ABSTRACT
A Preliminary Report on the Vascular Flora of the Sylamore Ranger District, Ozark National Forest, Stone Co., Arkansas. A preliminary floristic study of the part of this 175,000-acre area in Stone Co., north-central Arkansas, reveals the presence of 809 taxa of vascular plants. Of these, the Asteraceae is represented by the largest number of species, 133, followed by the Fabaceae with 54 species. A number of western and more northern species is included in the report in addition to several which are endemic to the area.
ABSTRACT
A study was made of the floating log and stump communities of the, Santee Swamp, Sumter County, South Carolina. The species inhabiting these communities were identified; percent frequency, mean density and vitality were determined; and the substrate was characterized as to species, degree of decay and position, as floating or attached. Twenty-four species were recorded in the 30 samples studied. The communities were homogeneous as to dominants with two species, <em>Hypericum walteri</em> and <em>Boehmeria cylindrica</em> having frequency values in the 80-100% class and 19 species with frequency values in the 0-20% class.
ABSTRACT
A preliminary taxonomic conspectus of Heterotheca section Chrysopsis recognizing the seven species: H. pilosa, H. mariana, H. scabrella, H. gossypina, H. Iatisquarnea, H. trichophylla, and H. hyssopifolia.
ABSTRACT
<em>Houstonia montana</em> (Chickering) Small (1933) appears to be morphologically and genetically distinct from <em>H. purpurea</em> L. (Rubiaceae). <em>Houstonia montana</em> was collected from the population on Roan Mountain, North Carolina, while <em>H. purpturea</em> was collected from populations on Roan and Bald Mountains, North Carolina. Statistically significant morphological differences were observed between the populations of <em>H. montana</em> and <em>H. purpurea</em>. Experimental crosses between <em>H. montana</em> and <em>H. purpurea</em> suggest that a definite breeding barrier exists between these taxa. Therefore, <em>H. montana</em> should be considered a distinct species, not an ecological variety or morphological variation of <em>H. purpurea</em>.
ABSTRACT
The Pine Mountain region of West-Central Georgia has been of interest to plant scientists since R. M. Harper called attention to the interesting admixture of Coastal Plain and Mountain species in 1903. The geology, physiography, soils, climate, and regional land-use history are discussed. Included is a floristic checklist of the vascular flora of the western portion of the region. The flora of the Pine Mountain region is rich in species; it has many species with Coastal Plain or with Appalachian affinities whose presence provides evidence of past migrations. The phytogeographical implications of the flora are compared with reference to several features of the environment, history, and biota of the area.