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Torrance Barrens
The Torrance Barrens (officially Torrance Barrens Conservation Reserve) is a conservation area and dark-sky preserve in the District Municipality of Muskoka in Central Ontario, Central Ontario, Canada. The reserve consists of Crown land#Canada, Crown Lands in the municipalities of Gravenhurst, Ontario, Gravenhurst and Muskoka Lakes. It is notable as the first dark-sky preserve in Canada and for its geological and environmental features. History In 1870, the Musquash Colonization Road was built, connecting Gravenhurst, Ontario, Gravenhurst to Musquash Falls (now Bala, Ontario, Bala). This road was the first in the area and some segments are still in use. However, the portion that bisects through the reserve is no longer in use and is a separate nature reserve, the Musquash Road Nature Reserve. In 1992, its significant natural values were identified, and additional studies described the aesthetic and recreational importance. In 1995, the Ministry of Natural Resources and Forestry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
District Municipality Of Muskoka
The District Municipality of Muskoka, more generally referred to as the District of Muskoka or Muskoka, is a regional municipality in Central Ontario, Canada. Muskoka extends from Georgian Bay in the west, to the northern tip of Lake Couchiching in the south, to the western border of Algonquin Provincial Park in the east. A two-hour drive north of Toronto, Muskoka spans . Muskoka has some 1,600 lakes, making it a popular cottaging destination. This region, which, along with Haliburton, Kawartha Lakes, and Peterborough County is referred to as "cottage country", sees over 2.1 million visitors annually. Muskoka is an area populated with several villages and towns, farming communities, and lakeside vacation hotels and resorts near to golf courses, country clubs, and marinas. The regional government seat is Bracebridge and the largest population centre is Huntsville. Muskoka is geographically located within the Central Ontario region of the province, although it is treated as part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Migmatite
Migmatite is a composite rock found in medium and high-grade metamorphic environments, commonly within Precambrian cratonic blocks. It consists of two or more constituents often layered repetitively: one layer is an older metamorphic rock that was reconstituted subsequently by partial melting ("paleosome"), while the alternate layer has a pegmatitic, aplitic, granitic or generally plutonic appearance ("neosome"). Commonly, migmatites occur below deformed metamorphic rocks that represent the base of eroded mountain chains. Migmatites form under extreme temperature and pressure conditions during prograde metamorphism, when partial melting occurs in metamorphic paleosome. Components exsolved by partial melting are called neosome (meaning ‘new body’), which may or may not be heterogeneous at the microscopic to macroscopic scale. Migmatites often appear as tightly, incoherently folded veins ( ptygmatic folds).Recommendations by the IUGS Subcommission on the Systematics of M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xyris Difformis
''Xyris difformis'', the bog yelloweyed grass, is a North American species of flowering plant in the yellow-eyed-grass family. It is native to the eastern and southern United States, eastern and central Canada, and Central America. ''Xyris difformis'' is a perennial herb up to 90 cm (3 feet) tall with grass-like leaves up to 50 cm (20 inches) long, and yellow flowers. ;Varieties *''Xyris difformis'' var. ''curtissii'' (Malme) Kral - Belize, coastal states of USA from Texas to Virginia *''Xyris difformis'' var. ''difformis'' - Nova Scotia, Ontario, USA (coastal states from Maine to Texas plus areas as far inland as Michigan, Oklahoma, Indiana, and Arkansas) *''Xyris difformis'' var. ''floridana'' Kral - Belize, Honduras, Nicaragua, USA (coastal states from Louisiana to the Carolinas The Carolinas are the U.S. states of North Carolina and South Carolina, considered collectively. They are bordered by Virginia to the north, Tennessee to the west, and Georgia to the so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamogeton
''Potamogeton'' is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed (''Elodea canadensis''). The genus name means "river neighbor", originating from the Greek ''potamos'' (river) and ''geiton'' (neighbor). Morphology ''Potamogeton'' species range from large (stems of 6 m or more) to very small (less than 10 cm). Height is strongly influenced by environmental conditions, particularly water depth. All species are technically perennial, but some species disintegrate in autumn to a large number of asexually produced resting buds called turions, which serve both as a means of overwintering and dispersal. Turions may be borne on the rhizome, on the stem, or on stolons from the rhizome. Most species, however, persist by perennial creeping rhizomes. In some cases the turions are the only means to differentiate species. The leav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygonum
''Polygonum'' is a genus of about 130 species of flowering plant in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae). In the Middle English glossary of herbs ''Alphita'' ( 1400–1425), it was known as ars-smerte. There have been various opinions about how broadly the genus should be defined. For example, buckwheat (''Fagopyrum esculentum'') has sometimes been included in the genus as ''Polygonum fagopyrum''. Former genera such as ''Polygonella'' have been subsumed into ''Polygonum''; other genera have been split off. The genus primarily grows in northern temperate regions. The species are very diverse, ranging from prostrate herbaceous annual plants to erect herbaceous perennial plants. ''Polygonum'' species are occasionally eaten by humans, and are used as food plants by the larvae of some Lepidoptera species – see list. Most species are considered weeds i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platanthera Blephariglottis
''Platanthera blephariglottis'', commonly known as the white fringed orchid or white-fringed orchis, is a species of orchid of the genus ''Platanthera''. It is considered to be an endangered species in Connecticut and Ohio, a threatened species in Florida, Maryland and Rhode Island, exploitably vulnerable in New York, and susceptible to be threatened in Québec. ''Platanthera'' is a Greek word that means "flat" and "flower". For this use it means "wide or flat anthered". ''Blephariglottis'' is from ''blepharis'' which means "eyelash" or "fringed" and ''glottis'' for "tongue." Description Flowering from late spring until summer, ''Platanthera blephariglottis'' is an 8 to 110 centimeters (3 to 43 inches) tall plant that can be found growing in bogs and on the moist banks of lakes and rivers on the eastern side of North America. ;Stem and leaves: At least 2 and often several spreading to ascending leaves scattered along the stem. Leaf shapes from linear-lanceolate, ovate- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Listera Australis
''Neottia bifolia'' (syn. ''Listera australis''), common name southern twayblade, (as ''Listera australis'') is a species of terrestrial orchid found in eastern Canada (from Nova Scotia to Ontario) and the eastern United States (from Florida west to eastern Texas and north to Vermont Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to ...). References External linksUS Department of Agriculture plants profile, ''Listera australis'' Lindl. southern twayblade [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panicum
''Panicum'' (panicgrass) is a large genus of about 450 species of grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, annual or perennial grasses, growing to tall. The flowers are produced in a well-developed panicle often up to in length with numerous seeds, which are long and broad. The fruits are developed from a two-flowered spikelet. Only the upper floret of each spikelet is fertile; the lower floret is sterile or staminate. Both glumes are present and well developed. Australia has 29 native and 9 introduced species of ''Panicum''. Well-known ''Panicum'' species include ''Panicum miliaceum'' (proso millet) and ''Panicum virgatum'' (switchgrass). Selected species Formerly classified in this genus, according to The Plant List: Gallery File:Starr 020201-9001 Panicum antidotale.jpg, '' Panicum antidotale'' File:Panicum capillare NPS-1.jpg, '' Panicum capillare'' File:Panicum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botrychium
''Botrychium'' is a genus of ferns, seedless vascular plants in the family Ophioglossaceae. ''Botrychium'' species are known as moonworts. They are small, with fleshy roots, and reproduce by spores shed into the air. One part of the leaf, the trophophore, is sterile and fernlike; the other, the sporophore, is fertile and carries the clusters of sporangia or spore cases. Some species only occasionally emerge above ground and gain most of their nourishment from an association with mycorrhizal fungi. The circumscription of ''Botrychium'' is disputed between different authors; some botanists include the genera '' Botrypus'' and '' Sceptridium'' within ''Botrychium'', while others treat them as distinct. The latter treatment is provisionally followed here. Taxonomy * – pointed moonwort * – Alaska moonwort * – upswept moonwort, triangle-lobed moonwort, upward-lobed moonwort * – northern moonwort * – prairie moonwort, prairie dunewort, Iowa moonwort * – dainty m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Threatened Species
Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensation'', a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment. IUCN definition The International Union for Conservation of Nature (IUCN) is the foremost authority on threatened species, and treats threatened species not as a single category, but as a group of three categories, depending on the degree to which they are threatened: *Vulnerable species *Endangered species * Critically endangered species Less-than-threatened categories are near threatened, least concern, and the no longer assigned category of conservation dependent. Species which have not been evaluated (NE), or do not have sufficient data ( data deficient) also are not considered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Coastal Plain
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth#Surface, Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of Earth, the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North America, North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8th paralle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graminoid
In botany and ecology, graminoid refers to a herbaceous plant with a grass-like morphology, i.e. elongated culms with long, blade-like leaves. They are contrasted to forbs, herbaceous plants without grass-like features. The plants most often referred to include the families Poaceae (grasses in the strict sense), Cyperaceae (sedges), and Juncaceae (rushes). These are not closely related but belong to different clades in the order Poales. The grasses (Poaceae) are by far the largest family with some 12,000 species. Besides their similar morphology, graminoids share the widespread occurrence and often dominance in open habitats such as grasslands or marshes. They can however also be found in the understory of forests. Sedges and rushes tend to prefer wetter habitats than grasses. File:Pitrus (Juncus effusus) 05.JPG, alt=Common rush in shallow water, Common rush (''Juncus effusus''), Juncaceae File:Cyperus capitatus 01.jpg, alt=Nutsedge on dune, Nutsedge (''Cyperus capitatus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
