In “Pinus strobus and Heterotheca subaxillaris new to Long Island” (Castanea 49(1):45), Dr. Leonard J. Uttal has reported the presence of Heterotheca subaxillaris on Long Island in Rhodora 56:182-183. The author regrets this omission.
In “Pinus strobus and Heterotheca subaxillaris new to Long Island” (Castanea 49(1):45), Dr. Leonard J. Uttal has reported the presence of Heterotheca subaxillaris on Long Island in Rhodora 56:182-183. The author regrets this omission.
The Earl L. Core Botanical Slide Collection of the West Virginia University Herbarium consists of over 21,000 color slides.
When describing new species in his Flora of the Southeastern United States (1903, 1913, 1933), J.K. Small usually typified his entities in an appendix. In the case of Solidago asterifolia Small, he overlooked doing this.
Fourteen species of Myxomycetes are reported from West Virginia for the first time, bringing the total number of species reported to 126.
Floristic data and county dot distribution maps are presented for ten species of the Geraniaceae in the Ohio flora.
Comprehensive field guides for mosses are uncommon, which has been a stumbling block for beginning and amateur bryologists in most parts of the United States. In this guide more than 200 mosses of the Gulf South are discussed, employing illustrations, keys and descriptions to aid in identification.
An unusually high incidence of red oak decline and death which occurred in 1979 in the Nantahala National Forest, North Carolina, was probably the result of a stress condition initiated in 1963 by lower than normal February temperatures and subsequently aggravated by an unusual series of extremely dry summers starting in 1968 and worsening in 1973-78. These conditions caused irreversible damage to some trees on upper slopes and many trees died. Little subsequent decline or death has occurred among surviving trees.
A descriptive study was made in 1981 and 1982 of the vegetation and flora on an 18-year-old surface-mined area near Lily in Laurel County, Kentucky. More than 100 woody and herbaceous taxa were planted on about 25 percent of the area in 1965 and 1966. Some of the planted area and most of the unplanted area subsequently were re-vegetated by natural plant succession. The natural plant community was sampled by the belt transect and quadrat methods; the vascular flora was documented by field reconnaissance; and planted experimental plots were inventoried for surviving species. A Virginia pine-mixed hardwoods community was the major natural vegetation type. The vascular flora comprised 350 taxa from 84 families; 77 of these were nonindigenous taxa. Thirty-seven indigenous and 41 nonindigenous species have persisted from the original experimental plantings.
The adder’s-tongue ferns, Ophioglossum (Ophioglossaceae) are noted for taxonomic problems. Of the seven species known in southeastern United States, Ophioglossum nudicaule L. fils is the most variable and taxonomically confused. C.M. Allen’s recent discovery in Louisiana of plants matching the tropical American O. ellipticum Hook. & Grev. led to a study of this taxon and its relationships with O. nudicaule. Taxon ellipticum differs from the traditional concept of O. nudicaule in its larger size, complex venation pattern with small secondary areoles included within the large primary areoles, and a pale central band on either side of the midrib on the abaxial surface of the blade. Comparison of forms of O. nudicaule demonstrates that there is a continuous morphological series running from very small plants with relatively simple veins and no included areoles to large plants with complex veins and numerous included areoles. The epithets that have been applied to the United States members of this series are enumerated here, and all of them, including ellipticum, are synonymized under O. nudicaule. According to this new interpretation, Ophioglossum dendroneuron E.P. St. John is an intermediate form that ties together the two ends of the spectrum of variation. A key to all of the species now recognized in the southeastern United States is presented, together with suggestions for making useful collections of these plants. It is hoped that the Allen locality will be preserved for future studies of what is the only presently known adder’s-tongue in the United States that has the characters of typical O. ellipticum.