|
Pediocactus Peeblesianus
''Pediocactus peeblesianus'' is a rare species of cactus known by the common names Navajo pincushion cactus. It is endemic to the state of Arizona in the United States. The species is named after the Arizona botanist Robert Hibbs Peebles. Description This petite cactus grows up to 6.5 centimeters tall by about 5.5 wide. It is grayish green in color and generally spherical or egg-shaped.''Pediocactus peeblesianus''. Flora of North America. Sometimes only the top is visible above the soil and the whole cactus body may shrink and disappear under the soil in dry times.''Pediocactus peeblesianus''. |
Léon Croizat
Léon Camille Marius Croizat (July 16, 1894 – November 30, 1982) was a French-Italian scholar and botanist who developed an orthogenetic synthesis of evolution of biological form over space, in time, which he called panbiogeography. Life Croizat was born in Torino, Italy to Vittorio Croizat (aka Victor Croizat) and Maria (Marie) Chaley, who had emigrated to Turin from Chambéry, France. In spite of his great aptitude for the natural sciences, Leon studied and received a degree in law from the University of Turin. Croizat and his family (wife Lucia and two children) emigrated to the United States in 1924; an avid artist, Leon worked selling his artwork for several years, but could not succeed economically as a working artist after the stock market crash of 1929. During the 1930s, Croizat found a job identifying plants as part of a topographic inventory performed in the public parks of New York City. During his visits to the Bronx Botanical Gardens, he became acquainted with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glomus Deserticola , an anatomical term meaning "small ball"
{{disambig ...
Glomus (Latin for 'ball of thread or yarn') can refer to: * ''Glomus'' (fungus) * Glomus tumor * Coccygeal glomus * Carotid glomus, another name for the carotid body * Glomus cell * Glomerulus ''Glomerulus'' () is a common term used in anatomy to describe globular structures of entwined vessels, fibers, or neurons. ''Glomerulus'' is the diminutive of the Latin ''glomus'', meaning "ball of yarn". ''Glomerulus'' may refer to: * the filter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 1962
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have los ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of The United States
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Arizona
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cacti Of The United States
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek word (''káktos''), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. Although some species live in quite humid environments, most cacti live in habitats subject to at least some drought. Many live in extremely dry environments, even being found in the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti where this vital process takes place. Most species of cacti have lost true leaves, retaining only spines, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drought
A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, and O. Zolina, 2021Water Cycle Changes In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 1055–1210, doi:10.1017/9781009157896.010. This means that a drought is "a moisture deficit relative to the average water availability at a given location and season". A drought can last for days, months or years. Drought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grassland
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area. Definitions Included among the variety of definitions for grasslands are: * "...any plant community, including harvested forages, in which grasses and/or legumes make up the dominant vegetation." * "...terrestrial ecosystems dominated by herbaceous and shrub vegetation, and maintained by fire, grazing, drought and/or freezing temperatures." (Pilot Assessment of Global Ecosystems, 2000) * "A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Basin
The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California. It is noted for both its arid climate and the basin and range topography that varies from the North American low point at Badwater Basin in Death Valley to the highest point of the contiguous United States, less than away at the summit of Mount Whitney. The region spans several physical geography, physiographic divisions, biomes, ecoregions, and deserts. Definition The term "Great Basin" is applied to hydrography, hydrographic, ecology, biological, floristic province, floristic, physiographic, topography, topographic, and Ethnography, ethnographic geographic areas. The name was originally coined by John C. Frémont, who, based on information gleaned from Joseph R. Walker as well as his own travels, recognized the hydrographic nature o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holbrook, Arizona
Holbrook ( nv, Tʼiisyaakin) is a city in Navajo County, Arizona, United States. According to the 2010 census, the population of the city was 5,053. The city is the county seat of Navajo County. Holbrook was founded in 1881 or 1882, when the railroad was built, and named to honor the first chief engineer of the Atlantic and Pacific Railroad, Henry Randolph Holbrook. History The Holbrook area was inhabited first by the Ancestral Puebloans, then Puebloans, then the Navajo and Apache. In 1540 (some seventy years before Jamestown or the Pilgrims) Coronado searched for the Seven Cities of Cibola and camped some 60 miles east of Holbrook. Coronado sent an expedition west to find the Colorado River, and they crossed the Little Colorado some twenty-five miles east of Holbrook and found a wonderland of colors they named "El Desierto Pintada" – The Painted Desert. The expedition was then led by the Hopis to the Grand Canyon. U.S. settlements After the Mexican–American War e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph City, Arizona
Joseph City (elevation 5,000 ft) is a Census Designated Place located in Navajo County, Arizona, United States. It is located on Interstate 40, approximately eighty miles east of Flagstaff and about thirty-five miles west of Petrified Forest National Park. In 2010, there were 1,386 inhabitants. It is the site of the Jack Rabbit Trading Post, a famous Route 66 landmark. History Joseph City was settled in 1876 by colonists who were members of the Church of Jesus Christ of Latter-day Saints. This band of 73 pioneers was led by Captain William C. Allen. They traveled to the Little Colorado River basin of Arizona. Joseph City was one of four Little Colorado River colonies. The other colonies were Brigham City, Sunset, and Obed. Joseph City is the only remaining colony. The hardest trial for the new colonists was trying to get water for their crops. This meant that they had to try to tame the Little Colorado River. This was difficult due to the flooding season that woul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navajo County, Arizona
Navajo County is in the northern part of the U.S. state of Arizona. As of the 2020 census, its population was 106,717. The county seat is Holbrook. Navajo County comprises the Show Low, Arizona Micropolitan Statistical Area. Navajo County contains parts of the Hopi Indian reservation, the Navajo Nation, and Fort Apache Indian Reservation. History Navajo County was split from Apache County on March 21, 1895. The first county sheriff was Commodore Perry Owens, a legendary gunman who had previously served as the sheriff of Apache County. It was the location for many of the events of the Pleasant Valley War. Geography According to the United States Census Bureau, the county has a total area of , of which is land and (0.09%) is water. Navajo County offers not only the Monument Valley, but Keams Canyon, part of the Petrified Forest National Park, and one of the largest contiguous ponderosa pine forest in North America. Adjacent counties * Apache County – east * Graham Cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Endemic Flora Of The United States")
