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Nolina Brittoniana
''Nolina brittoniana'' is a rare species of flowering plant in the asparagus family known by the common name Britton's beargrass. It is endemic to Florida, where there are 72 known populations, only a few of which are large enough to be considered viable.USFWS''Nolina brittoniana''.May 2010. It is federally listed as an endangered species of the United States. This plant has no aboveground stem. It is a rosette of leaves attached at a bulblike base which arises from an underground caudex, a modified stem. The grasslike leaves are up to a meter long and rarely more than a centimeter wide. The edges are serrated with cartilaginous teeth. The inflorescence is a large, erect panicle up to a meter tall. It has small bracts and reduced leaves. The many small flowers have tepals measuring only 1 or 2 millimeters long. While the flowers are bisexual, they are functionally unisexual, with either the male or female part reduced and not functional. Most plants have either functionally m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Valentine Nash
George Valentine Nash (May 6, 1864 – July 15, 1921) was an American botanist. He was the Head Gardener and Curator of the Plantations at the New York Botanical Garden, for whom he did field work in the Bahamas, South Florida and Haiti. Life Early life and family background George Valentine Nash was born in Brooklyn, New York on May 6, 1864. He was the son of Scotto Clark Nash and Alice Valentine, who were married in Brooklyn, NY on February 2, 1863."Scotto Nash, a Biography," by William Wurst. (1976). Nash, George Valentine, Vertical File collection, The LuEsther T. Mertz Library, The New York Botanical Garden. June 14, 2016. Scotto was the son of Rev. John Adams and Mary Moody (Clark) Nash, whose ancestry is traced back to Pilgrim William Brewster, who came from England on the Mayflower in 1620. Scotto and Alice also had a daughter, Mary Clark Nash. Scotto, after many years as a businessman in various capacities, pursued an interest in nature by building greenhouses an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Wales Ridge
The Lake Wales Ridge, sometimes referred to as the Mid-Florida Ridge,Eastern States Archaeological Federation. ''Archaeology of Eastern North America, Volume 11'', p. 54 is a sand ridge running for about 150 miles south to north in Central Florida. Clearly viewable from satellite, the white sands of the ridge are located in Highlands County and Polk County, and also extend north into Osceola, Orange, and Lake Counties. It is named for the city of Lake Wales, roughly at the midpoint of the ridge. The highest point of the ridge is Sugarloaf Mountain, which at is also the highest natural point in peninsular Florida. (The highest point of land, at , is a manmade mining tank west of Bartow.) Iron Mountain, the location of Bok Tower, marks another well known high point on the ridge, attaining an elevation of . A northern unconnected extension of the Lake Wales Ridge exists in western Putnam County near the town of Grandin. Origins Florida's ancient sand islands stretch for over 100 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Suppression
Wildfire suppression is a range of firefighting tactics used to suppress wildfires. Firefighting efforts in wild land areas require different techniques, equipment, and training from the more familiar structure fire fighting found in populated areas. Working in conjunction with specially designed aerial firefighting aircraft, these wildfire-trained crews suppress flames, construct fire break, fire lines, and extinguish flames and areas of heat to protect resources and natural wilderness. Wildfire suppression also addresses the issues of the wildland–urban interface, where populated areas border with wild land areas. In the United States and other countries, aggressive wildfire suppression aimed at minimizing fire has contributed to accumulation of fuel loads, increasing the risk of large, catastrophic fires. History Australia Wildland fire, known in Australia as bush fire, has played a major role in Australia due to arid conditions. Notable fire services tasked with wildfire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecological Succession
Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire) or more or less. Bacteria allows for the cycling of nutrients such as carbon, nitrogen and sulphur. The community begins with relatively few pioneering plants and animals and develops through increasing complexity until it becomes stable or self-perpetuating as a climax community. The "engine" of succession, the cause of ecosystem change, is the impact of established organisms upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one's own environment. Succession is a process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Regime
A fire regime is the pattern, frequency, and intensity of the bushfires and wildfires that prevail in an area over long periods of time. It is an integral part of fire ecology, and renewal for certain types of ecosystems. A fire regime describes the spatial and temporal patterns and ecosystem impacts of fire on the landscape, and provides an integrative approach to identifying the impacts of fire at an ecosystem or landscape level.Morgan, Penelope; Hardy; Swetnam; Rollins; Long (1999)"Mapping fire regimes across time and space: Understanding coarse and fine-scale fire patterns"(PDF). ''International Journal of Wildland Fire''. 10: 329–342 – via Google Scholar. If fires are too frequent, plants may be killed before they have matured, or before they have set sufficient seed to ensure population recovery. If fires are too infrequent, plants may mature, senesce, and die without ever releasing their seed. Fire regimes can change with the spatial and temporal variations in topography, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonamia Grandiflora
''Bonamia grandiflora'' is a rare species of flowering plant in the morning glory family known by the common names Florida lady's nightcap, Florida bonamia, and scrub morning glory. It is endemic to Central Florida, where there are about 100 known populations remaining, many of which are within the bounds of the Ocala National Forest.Center for Plant Conservation The plant has declined in recent decades primarily due to the development of its habitat, which is being converted to urban zones and groves. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calamintha Ashei
''Clinopodium ashei'' ( syn. ''Calamintha ashei'') is a species of flowering plant in the mint family known by the common names Ashe's savory and Ashe's calamint. It is native to Florida and Georgia in the United States.''Calamintha ashei''. Center for Plant Conservation. This bushy grows up to about half a meter tall. It is aromatic. The stems have cracking, peeling bark and the newer twigs have a coat of downy hairs. The leaves are linear to narrowly oval in shape and are up to a centimeter long. They are hairy and glandular. The flower has a hairy, lipped corolla about a centimeter long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conradina Brevifolia
''Conradina brevifolia'' is a rare species of shrub in the mint family known by the common name short-leaved false rosemary. It is endemic to Central Florida, where it is known only from the Lake Wales Ridge.USFWS''Conradina brevifolia'' Five-year Review.August 2008. There are perhaps 36 occurrences of the plant remaining, and 10 of these are likely to be destroyed as their habitat is fragmented in the coming years. About 15% of the Lake Wales Ridge, the only home territory of the plant, remains today, the rest having been cleared for development and citrus groves. Few of the extant populations have more than 25 plants. This is a federally listed endangered species of the United States. Characteristics This is an aromatic shrub growing up to about a meter tall. The small, fleshy, glandular leaves are linear in shape and under a centimeter long. Lavender flowers occur in the leaf axils. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypericum Cumulicola
''Hypericum cumulicola'' is a rare species of flowering plant in the family Hypericaceae known by the common name highlands scrub hypericum, or highlands scrub St. John's wort. It is endemism, endemic to Florida, where it is threatened by habitat loss and degradation.''Hypericum cumulicola''. Center for Plant Conservation. It is a federally listed endangered species of the United States. This is a perennial herb with wiry, sometimes woody, stems growing from a taproot and reaching about 60 centimeters in maximum length. The leaves have slightly succulent blades which are linear in shape and measure just a few millimeters long. Flowers occur on the upper branches in a scattered fashion. Each has five yellow petals 3 to 4 millimeters long and many stamens at the center. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liatris Ohlingerae
''Liatris ohlingerae'' is a rare species of flowering plant in the family Asteraceae known by the common names Florida blazing star, Florida gayfeather, scrub blazing star, and sandtorch. It is endemic to Florida in the United States, where it occurs only on the Lake Wales Ridge along with many other rare plants. It is threatened by the loss and degradation of its habitat, and it is federally listed as an endangered species. This is a perennial herb growing 30 centimeters to one meter in height from a cylindrical corm. The glandular leaves are linear in shape and the longest near the base of the plant may reach 15 centimeters long. The inflorescence is a flower head containing up to 30 disc florets. It is lined with purple-edged green phyllaries and contains tubular lavender corollas. This plant grows in Florida scrub habitat on the Lake Wales Ridge of Central Florida. It grows on rosemary balds in areas of sand pine scrub, open areas where sunlight reaches through the canopy of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persea Humilis
''Persea'' is a genus of about 150 species of evergreen trees belonging to the laurel family, Lauraceae. The best-known member of the genus is the avocado, ''P. americana'', widely cultivated in subtropical regions for its large, edible fruit. Overview They are medium-size trees, tall at maturity. The leaves are simple, lanceolate to broad lanceolate, varying with species from long and broad, and arranged spirally or alternately on the stems. The flowers are in short panicles, with six small greenish-yellow perianth segments long, nine stamens and an ovary with a single embryo. The fruit is an oval or pear-shaped berry, with a fleshy outer covering surrounding the single seed; size is very variable among the species, from in e.g. ''P. borbonia'' and ''P. indica'', up to in some cultivars of ''P. americana''. Distribution and ecology The species of ''Persea'' have a disjunct distribution, with about 70 Neotropical species, ranging from Brazil and Chile in South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paronychia Chartacea
''Paronychia chartacea'' is a rare species of flowering plant in the family Caryophyllaceae known by the common names papery Whitlow-wort and paper nailwort. It is endemic to Florida in the United States. There are two subspecies of the plant; ssp. ''chartacea'' occurs in Central Florida, especially the Lake Wales Ridge, and ssp. ''minima'' is native to the Florida Panhandle.''Paronychia chartacea''. Center for Plant Conservation. The two subspecies are geographically separated and do not occur together. Both are included on the federal Endangered Species List, on which the species is designated threatened. This is often an annual herb, though ssp. ''chartacea'' may be a short-lived perennial. It produces a short, spreading stem that branches many times to take on a mat-like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
