Book Reviews: Chromosomal evolution in Higher Plants
Notes and News: The 22nd Annual Spring Wildflower Pilgrimage
ABSTRACT The largest stand of <em>Chamaecyparis thyoides</em> in the southwest portion of its range was sampled by the quarter method and importance values obtained for the trees and saplings. Shrubs, topographic and edaphic factors were also observed. These findings were compared with those of stands from other parts of the range of white-cedar.
ABSTRACT A summer study of the phytoplankton in Lake Drummond is discussed. The lake is located in the center of the Dismal Swamp region of southeastern Virginia. There was little species diversity of the phytoplankton which was composed mainly of diatoms, desmids, and phytoflagellates. The dominant species were <em>Asterionella formosa</em>, <em>Melosira Herzogii</em>, <em>Closteriam gracile</em>, and <em>Staurastrum paradoxum</em>.
ABSTRACT The age designation of Dunkard strata has been a controversial subject for more than 90 years. These rocks have been designated by various authors as Pennsylvanian, Permian, transitional Permo-Carboniferous and partially Permo-Carboniferous: partially Permian. Evidence cited in substantiation of each of these claims has varied from lithological to paleontological to paleobotanical, but the preserved mega-flora as described by Fontaine and White (Rept. PP., 2nd Pa. Geol. Survey) in 1880 forms the basis for most of the age assignments. In some instances, fossilized organisms have apparently been cited as Permian because of their occurrence in Dunkard strata rather than through interpretation of the organismal characteristics. Palynological studies which contrast the flora of the Dunkard with the Virgilian, Gearyan and basal Cimarronian of the Midcontinent area indicate that the Dunkard is no younger than Virgilian which has always been classified as undoubted Pennsylvanian. In general, there seems to be no lithologic,
ABSTRACT A uniquely diverse area in the Blue Ridge province of North Carolina is described. A bog-fen is particularly noteworthy. A catalog of the rich flora, which includes many taxa rarely found in the Carolinas, is provided.