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Calliarthron Tuberculosum
''Calliarthron tuberculosum'' is a species of thaloid intertidal red algae. It is the type species of the genus ''Calliarthron''. Taxonomy ''C. tuberculosum'' was originally described as ''Corallina tuberculosa'' in 1840 Alexander Postels and Franz Ruprecht. It was reclassified into the genus ''Calliarthron'' in 1940 by E. Yale Dawson. Distribution and habitat ''Calliarthron tuberculosum'' is found on the west coast of North America, from the Baja California Peninsula to the Alaska Panhandle Southeast Alaska, often abbreviated to southeast or southeastern, and sometimes called the Alaska(n) panhandle, is the southeastern portion of the U.S. state of Alaska, bordered to the east and north by the northern half of the Canadian provi .... It is commonly found in "low intertidal tidepools in moderate to exposed habitats". South of Monterey Bay, California, the range of ''C. tuberculosum'' overlaps with the range of ''C. cheilosporioides''; as the two species are quite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Algae
Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxonomic revisions. The majority of species (6,793) are Florideophyceae, and mostly consist of multicellular, ocean, marine algae, including many notable seaweeds. Red algae are abundant in marine habitats. Approximately 5% of red algae species occur in freshwater environments, with greater concentrations in warmer areas. Except for two coastal cave dwelling species in the asexual class Cyanidiophyceae, no terrestrial species exist, which may be due to an evolutionary bottleneck in which the last common ancestor lost about 25% of its core genes and much of its evolutionary plasticity. Red algae form a distinct group characterized by eukaryotic cells without flagella and centrioles, chloroplasts without external endoplasmic reticulum or unstack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calliarthron
''Calliarthron'' is a genus containing two species of thalloid intertidal alga. Specimens can reach around 30 cm in size. The thalli take a crustose form. The organisms lack secondary pit connections. ''Calliarthron'' reproduces by means of conceptacles; it produces tetraspores, dispores and carpospores. The genus has lignin and contains secondary cell walls, traits which are normally associated with the vascular plants. It is similar to the genus '' Bossiella''. ''Calliarthron'' is calcified, but also has uncalcified joints that allow it to flex in response to the waves to which it is subjected. These joints start out calcified, and decalcify as they grow older. After decalcifying they grow much longer, then fatten themselves up in the same way as xylem formation, resulting in secondary walls. Species The 2 species currently recognised are:Paul W. Gabrielson, Kathy Ann Miller, and Patrick T. Martone (2011) Morphometric and molecular analyses confirm two distinct spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Postels
Alexander Filippovich Postels (; 24 August 1801 in Dorpat – 28 June 1871 in Vyborg) was a Russian naturalist, mineralogist and artist of Baltic German descent. Career Postels studied at St.Petersburg Imperial University and in 1826 lectured there on inorganic chemistry. In the 1820s political relations between Russia and the United States were troubled by the extent of Russian territory in North America. Russia intended to enforce its claims by sending two warships to the disputed areas. When the two countries agreed on 54°40′N as the southern limit of Russian claims, Czar Nicolas I changed their orders in 1826 to an extended three-year survey of the Russian-American and Asian coasts. Otto von Kotzebue had returned on 10 July 1826 from his voyage of discovery aboard ''Predpriyatiye''. On 16 August 1826, Captain Lieutenant Fedor Petrovich Litke, sailed on board the Russian vessel ''Senyavin'', accompanied by the ''Möller'' under Captain Lieutenant M. N. Staniukovich. P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Josef Ruprecht
Franz Josef Ruprecht (1 November 1814 – 4 April 1870) was an Austrian-born physician and botanist active in the Russian Empire, where he was known as Frants Ivanovič Ruprekht (). Life He was born in Freiburg im Breisgau, and grew up in Prague, where he studied, and graduated as Doctor of Medicine in 1836. After a short period in medical practice in Prague, he was appointed curator of the herbarium of the Russian Academy of Sciences in Saint Petersburg in 1839. In July and August 1841, together with a colleague, professor Sawelhaw of the Russian Academy, he organised and accompanied an expedition to the island to Kolguyev Island in the Barents Sea.Trevor-Battye, Aubyn. (1895). ''Ice-bound on Kolguev'', Constable, London, 1895. He served as assistant director of the Saint Petersburg Botanical Garden between 1851 and 1855, and professor of botany in 1855 at the University of Saint Petersburg.Darwin CorrespondenceFranz Josef Ruprecht/ref> He died in Saint Petersburg in 1870. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Panhandle
Southeast Alaska, often abbreviated to southeast or southeastern, and sometimes called the Alaska(n) panhandle, is the southeastern portion of the U.S. state of Alaska, bordered to the east and north by the northern half of the Canadian province of British Columbia (and a small part of Yukon). The majority of southeast Alaska is situated in Tlingit Aaní, much of which is part of the Tongass National Forest, the United States' largest national forest. In many places, the international border runs along the crest of the Boundary Ranges of the Coast Mountains (see Alaska boundary dispute). The region is noted for its scenery and mild, rainy climate. The largest cities in the region are Juneau, Sitka, and Ketchikan. This region is also home to Hyder, the easternmost town in Alaska. Geography Southeast Alaska has a land area of , comprising much of the Alexander Archipelago. The largest islands are, from North to South, Chichagof Island, Admiralty Island, Baranof Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corallinaceae
The Corallinaceae are one of the two extant Coralline families of red algae; they are differentiated from the morphologically similar Sporolithaceae by their formation of grouped sporangial chambers, clustered into sori. The Corallinoideae is monophyletic; the other subfamilies form another monophyletic group. Genera The following genera are listed in the World Register of Marine Species: *Subfamily Amphiroideae **Genus '' Amphiroa'' J.V. Lamouroux, 1812 **Genus '' Lithothrix'' J.E. Gray, 1867 *Subfamily Corallinoideae **Genus '' Alatocladia'' (Yendo) Johansen, 1969 **Genus '' Arthrocardia'' Decaisne, 1842 **Genus '' Bossiella'' P.C. Silva, 1957 **Genus '' Calliarthron'' Manza, 1937 **Genus '' Cheilosporum'' (Decaisne) Zanardini, 1844 **Genus '' Chiharaea'' Johansen, 1966 **Genus '' Corallina'' Linnaeus, 1758 **Genus '' Ellisolandia'' **Genus '' Haliptilon'' (Decaisne) Lindley, 1846 **Genus '' Jania'' J.V. Lamouroux, 1812 **Genus '' Marginisporum'' (Yendo) Ganesan, 196 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protists Described In 1840
A protist ( ) or protoctist is any eukaryotic organism that is not an animal, land plant, or fungus. Protists do not form a natural group, or clade, but are a paraphyletic grouping of all descendants of the last eukaryotic common ancestor excluding land plants, animals, and fungi. Protists were historically regarded as a separate taxonomic kingdom known as Protista or Protoctista. With the advent of phylogenetic analysis and electron microscopy studies, the use of Protista as a formal taxon was gradually abandoned. In modern classifications, protists are spread across several eukaryotic clades called supergroups, such as Archaeplastida (photoautotrophs that includes land plants), SAR, Obazoa (which includes fungi and animals), Amoebozoa and "Excavata". Protists represent an extremely large genetic and ecological diversity in all environments, including extreme habitats. Their diversity, larger than for all other eukaryotes, has only been discovered in recent decades thro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of California
California native plants are plants that existed in California prior to the arrival of European colonialism, European explorers and colonists in the late 18th century. California includes parts of at least three Phytochorion, phytochoria. The largest is the California Floristic Province, a geographical area that covers most of California, portions of neighboring Oregon, Nevada, and Baja California, and is regarded as a "world hotspot" of biodiversity. Introduction In 1993, ''The Jepson Manual'' estimated that California was home to 4,693 native species and 1,169 native subspecies or varieties, including 1,416 endemic species. A 2001 study by the California Native Plant Society estimated 6,300 native plants. These estimates continue to change over time. Of California's total plant population, 2,153 species, subspecies, and varieties are endemism, endemic and native to California alone, according to the 1993 Jepson Manual study. This botanical diversity stems not only from the si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Oregon
This is a list of plants by common name that are native to the U.S. state of Oregon. * Adobe parsley * Alaska blueberry * American wild carrot * Austin's popcornflower * Awned melic *Azalea * Azure penstemon * Baby blue eyes * Baldhip rose * Beach strawberry * Beach wormwood * Bearded lupine * Bensoniella * Bigleaf maple * Bigleaf sedge * Birdnest buckwheat * Birthroot, western trillium * Bitter cherry * Bleeding heart * Blow-wives * Blue elderberry * Bog Labrador tea * Bolander's lily * Bridges' cliffbreak * Brook wakerobin * Brown dogwood * Buckbrush * Bugle hedgenettle * Bunchberry * California broomrape * California buttercup * California canarygrass * California goldfields * California milkwort * California phacelia * California stoneseed * California wild rose * Camas * Canary violet * Canyon gooseberry * Cascara * Castle Lake bedstraw * Charming centaury * Chinese caps * Citrus fawn lily * Coastal cryptantha * Coastal sand-verbena * Coastal sneezeweed * Coastal woodf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Washington (state)
This is a partial list of flora that are Indigenous (ecology), native to the U.S. state of Washington (state), Washington. Plants sorted by family Adoxaceae * ''Sambucus nigra'' ― blue elderberry * ''Sambucus racemosa'' ― red elderberry * ''Viburnum edule'' ― high-bush cranberry * ''Viburnum ellipticum'' ― common viburnum * ''Viburnum opulus'' ― snowball viburnum Asparagaceae * ''Asparagus officinalis'' ― garden asparagus * ''Brodiaea coronaria'' ― bluedick brodiea * ''Camassia quamash'' ― common camas * ''Camassia leichtlinii'' ― large camas * ''Dichelostemma congestum'' ― ookow, northern saitas * ''Maianthemum dilatatum'' ― false lily-of-the-valley * ''Maianthemum racemosum'' ― feathery false lily-of-the-valley * ''Maianthemum stellatum'' ― starry false lily-of-the-valley * ''Muscari armeniacum'' ― garden grape-hyacinth * ''Ornithogalum umbellatum'' ― sleepydick * ''Triteleia grandiflora'' ― blue umber lily * ''Triteleia hyacinthina'' ― whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
