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Halogeton Sativus
''Halogeton'' is a plant genus of the family Amaranthaceae. The genus name, ''Halogeton'', derives from the Greek words for "salt" and for "neighbor."Holmgren, Ned A. (2004).''Halogeton''C. A. Meyer" in ''Flora of North America: North of MexicVolume 4: Magnoliophyta: Caryophyllidae, part 1', Editorial Committee of the ''Flora of North America'' (Oxford University Press, 2004). . Online versions retrieved May 22, 2007. Description The genus ''Halogeton'' includes both annual and perennial species. The leaves are fleshy cylindrical, terminating in a persistent or caducous bristle. There are three to several flowers in the axil of each floral leaf. The perianth segments are membranous. The stamens are fixed on a papillose staminodial disk. In fruit, the tepals develop five wings. Distribution and habitat The annual species grow in temperate salines and ruderal places, while the perennials are found in warm and hot deserts. They are tolerant of fairly saline soils. Uses ''Halogeton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidoptera
Lepidoptera ( ) or lepidopterans is an order (biology), order of winged insects which includes butterflies and moths. About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organisms, making it the second largest insect order (behind Coleoptera) with 126 family (biology), families and 46 Taxonomic rank, superfamilies, and one of the most widespread and widely recognizable insect orders in the world. Lepidopteran species are characterized by more than three derived features. The most apparent is the presence of scale (anatomy), scales that cover the torso, bodies, large triangular Insect wing, wings, and a proboscis for siphoning nectars. The scales are modified, flattened "hairs", and give butterflies and moths their wide variety of colors and patterns. Almost all species have some form of membranous wings, except for a few that have reduced wings or are wingless. Mating and the laying of eggs is normally performe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halophytes
A halophyte is a salt-tolerant plant that grows in soil or waters of high salinity, coming into contact with saline water through its roots or by salt spray, such as in saline semi-deserts, mangrove swamps, marshes and sloughs, and seashores. The word derives from Ancient Greek ἅλας (halas) 'salt' and φυτόν (phyton) 'plant'. Halophytes have different anatomy, physiology and biochemistry than glycophytes.Physiology of halophytes, T. J. FLOWERS, Plant and Soil 89, 41–56 (1985) An example of a halophyte is the salt marsh grass ''Spartina alterniflora'' (smooth cordgrass). Relatively few plant species are halophytes—perhaps only 2% of all plant species. Information about many of the earth's halophytes can be found in thhalophytedatabase. The large majority of plant species are glycophytes, which are not salt-tolerant and are damaged fairly easily by high salinity. Classification Halophytes can be classified in many ways. According to Stocker (1933), it is mainly of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halogeton Tibeticus
''Halogeton'' is a plant genus of the family Amaranthaceae. The genus name, ''Halogeton'', derives from the Greek words for "salt" and for "neighbor."Holmgren, Ned A. (2004).''Halogeton''C. A. Meyer" in ''Flora of North America: North of MexicVolume 4: Magnoliophyta: Caryophyllidae, part 1', Editorial Committee of the ''Flora of North America'' (Oxford University Press, 2004). . Online versions retrieved May 22, 2007. Description The genus ''Halogeton'' includes both annual and perennial species. The leaves are fleshy cylindrical, terminating in a persistent or caducous bristle. There are three to several flowers in the axil of each floral leaf. The perianth segments are membranous. The stamens are fixed on a papillose staminodial disk. In fruit, the tepals develop five wings. Distribution and habitat The annual species grow in temperate salines and ruderal places, while the perennials are found in warm and hot deserts. They are tolerant of fairly saline soils. Uses ''Halogeton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coleophora
''Coleophora'' is a very large genus of moths of the family Coleophoridae. It contains some 1,350 described species. The genus is represented on all continents, but the majority are found in the Nearctic and Palaearctic regions. Many authors have tried splitting the genus into numerous smaller ones, but most of these have not become widely accepted. As with most members of the family, the larvae initially feed on the seeds, flowers or leaves of the host plant, but when larger, they feed externally and construct distinctive protective silken cases, often incorporating plant material. Many species have specific host plants; discarded larval cases are often scattered thickly on affected plants. Technical description Based on terms described in the article External morphology of Lepidoptera: Antennae 4/5, porrected in repose, often thickened with scales towards base, in male simple, basal joint long, usually with rough scales or projecting tuft. Labial palpi rather long, recurved, sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nutmeg (moth)
The nutmeg (''Hadula trifolii'' or ''Anarta trifolii''), also known as the clover cutworm, is a moth of the family Noctuidae. Distribution It is found in the Western Palearctic (western Europe, Tunisia, Iran), Niger, and Quebec in North America. In the north of its European range it is a summer Insect migration, migrant, not being able to survive the cold winters. Description This is a small to medium (wingspan 33–39 mm) species with cryptically coloured forewings, varying from light to dark brown, sometimes with a reddish tinge. The most characteristic feature is a distinctively W-shaped, white subterminal line. This feature is seen on some other noctuids, but usually much larger species. The hindwings are grey or buff, darker towards the Glossary of entomology terms, termen, and marked with dark veins. Description in Seitz Forewing grey, dark speckled:costa black-spotted: claviform stigma small: orbicular round, pale, sometimes whitish: reniform large, the lower lobe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larva
A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase of their life cycle. A larva's appearance is generally very different from the adult form (''e.g.'' caterpillars and butterflies) including different unique structures and organs that do not occur in the adult form. Their diet may also be considerably different. In the case of smaller primitive arachnids, the larval stage differs by having three instead of four pairs of legs. Larvae are frequently adapted to different environments than adults. For example, some larvae such as tadpoles live almost exclusively in aquatic environments but can live outside water as adult frogs. By living in a distinct environment, larvae may be given shelter from predators and reduce competition for resources with the adult population. Animals in the lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Anton Von Meyer
Carl Anton von Meyer (in Russian: Карл Анто́нович фон Ме́йер, ''Karl Antonovich von Meyer'') (1 April 1795 – 24 February 1855) was a Germans, German, Russified botanist and explorer. Meyer was born in Vitebsk. He received his education at the University of Dorpat (1813–14) as a student of Karl Friedrich von Ledebour, with whom he later embarked on a scientific journey to the Crimean Peninsula, Crimea (1818). In 1826, with Ledebour and Alexander G. von Bunge, he took part in an expedition to the Altay Mountains and the Kirghiz Steppe (Kazakhstan). Plants collected on the trip formed the basis of "Flora Altaica" (four volumes issued between 1829 and 1833).JSTOR Global Plants JSTOR Global Plants] (biography) In 1835 he began work as a botanist for the St. Petersburg Academy of Sciences, Academy of Sciences in St. Petersburg, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Oxalate
Sodium oxalate, or disodium oxalate, is a chemical compound with the chemical formula . It is the sodium Salt (chemistry), salt of oxalic acid. It contains sodium cations and oxalate anions . It is a white, crystalline, odorless solid, that decomposes above 290 °C. Sodium oxalate can act as a reducing agent, and it may be used as a primary standard for standardizing potassium permanganate () solutions. The mineral form of sodium oxalate is natroxalate. It is only very rarely found and restricted to extremely Soil salinity#Sodic soils, sodic conditions of ultra-alkaline pegmatites. Preparation Sodium oxalate can be prepared through the Neutralization (chemistry), neutralization of oxalic acid with sodium hydroxide (NaOH) in a 1:2 acid-to-Base (chemistry), base Mole (unit), molar ratio. Evaporation yields the anhydrous oxalate that can be thoroughly dried by heating to between 200 and 250 °C. Half-neutralization can be accomplished with NaOH in a 1:1 ratio which produces , Acid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halogeton Glomeratus
''Halogeton glomeratus'' is a species of flowering plant in the family Amaranthaceae known by the common names saltlover, Aral barilla, and halogeton. It is native to Russia, Central Asia and China, but the plant is probably better known in the western United States, where it is an introduced species and a notorious noxious weed. This annual herb is a hardy halophyte, thriving in soils far too saline to support many other plants. It also grows in alkali soils such as those on alkali flats and disturbed, barren habitat. It can be found in sagebrush and shadscale habitat, and it grows well in areas with cold winters. This plant produces a usually erect stem with several curving branches up to about tall. It has a taproot reaching up to half a meter deep in the soil and many lateral roots. The branches are lined with narrow, fleshy, blue-green leaves each up to about 2 centimeters long tipped with stiff bristles. The inflorescences are located all along the stem branches next to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
