Freshwater macrophytes play very important parts in aquatic ecosystems; in this day of man’s disturbance but dependence on aquatic ecosystems, it is important that he understand them and what he is doing to them.
Freshwater macrophytes play very important parts in aquatic ecosystems; in this day of man’s disturbance but dependence on aquatic ecosystems, it is important that he understand them and what he is doing to them.
This is a new work by a recognized authority in the field of greenhouse gardening; Walls has many years of experience, albeit it is mostly in England, and may be somewhat biased in that respect.
Anyone even slightly familiar with Plant Geography will know of Plant Geography books by Ronald Good.
It is somewhat surprising that only a relatively small number of wood fern (Dryopteris) hybrids is reported for West Virginia, especially in view of the numerous habitats in which two or more species of Dryopteris co-exist
Charley, our dog, has shown a proclivity for poles, that led to the discovery on September 19, 1974 of a lovely patch of Spergularia media (L.) C. Presl, hitherto unreported from Indiana and midwestern United States.
Working as Herbarium Assistant in West Virginia University Herbarium, during the past several years, has resulted in classifying a number of specimens which represent new species of vascular plants for the State of West Virginia.
Pinus glabra Walt. is limited in its distribution to the lower coastal plain of the southeastern states; and particularly in South Carolina to areas having similar soil associations which are loamy, low in organic content, and acid in reaction. Seeds of P. glabra show 60 percent germination after seven days stratification at 4°C. Exposure to light has no influence on germination percentage. Seedling survival is dependent upon the formation of mycorrhizal roots, which is dependent upon the distribution of mycorrhizal fungi in native soil.
In a floristic survey of Sumter National Forest, 10 new South Carolina records, and many Oconee Co. records, were made, and are here reported.
A total of 47 woody species was found in a vegatation survey of a terrace forest in Clark County, Illinois. Two distinct vegetation zones (low and high terrace) occur on the woodlot, and their composition and ecological trends are discussed. Woody species of the low terrace average 140 stems per acre with a basal area of 125 square feet; it is dominated by Ohio buckeye, box-elder, hackberry, sycamore, silver maple, black walnut, and American elm, in order of Importance Value. The high terrace averages 126 stems per acre with a basal area of 113 square feet per acre, and is dominated by shellbark hickory, box-elder, white oak, white ash, red maple, and red elm.
One of the intriguing observations made while visiting Dolly Sods, West Virginia, is the springing of the fruit of Carex pauciflora Lightfoot (Few-Flowered Sedge) from the top of its stem.