By forming dense stands, they can displace native plants and reduce wildlife habitats, in Canada, the plant has been sighted in British Columbia, Alberta, Saskatchewan, Ontario, Quebec, New Brunswick, Nova Scotia, and in isolated areas of Newfoundland.
It has been seen in Quebec since the early s, the plants spread in Ontario began in the southwest and was seen in in the greater Toronto area and Renfrew County near Ottawa.
Giant hogweed was introduced into New York about , and was recorded in British Columbia in the s and it is also recorded occasionally in Michigan It is a federally listed noxious weed in many states. The sap of the giant hogweed plant is phototoxic, when the skin is exposed to sunlight or to ultraviolet rays. They live as rhizomatous aquatic herbs in temperate and tropical climates around the world, the family contains five genera with about 70 known species.
Water lilies are rooted in soil in bodies of water, with leaves, the leaves are round, with a radial notch in Nymphaea and Nuphar, but fully circular in Victoria and Euryale. Genera with more parts, Nuphar, Nymphaea, Victoria, have a beetle pollination syndrome, while genera with fewer parts are pollinated by flies or bees. Thus, the number of relatively unspecialized floral organs in the Nymphaeaceae is not an ancestral condition for the clade.
Water lilies do not have leaves in the winter time. The leftover of internal pressure is embodied by the constant streams of bubbles that outbreak when rising leaves are ruptured in the spring. Methane is still penetrating the roots and rhizome in the summer, moving fast up the petioles, the Nymphaeaceae are aquatic, rhizomatous herbs.
The family is characterized by scattered vascular bundles in the stems. Hairs are simple, usually producing mucilage, stipules are either present or absent.
Flowers are solitary, bisexual, radial, with a pedicel and usually floating or raised above the surface of the water. Sepals are , distinct to connate, imbricate, and often petal-like, petals lacks or 8 to numerous, inconspicuous to showy, often intergrading with stamens.
Stamens are 3 to numerous, the innermost sometimes represented by staminodes, carpels are 3 to numerous, distinct or connate. Fruit is an aggregate of nuts, a berry, or an irregularly dehiscent fleshy capsule, seeds are often arillate, more or less lacking sperm. Nymphaeaceae has been investigated systematically for decades because botanists considered their floral morphology to represent one of the earliest groups of angiosperms, modern genetic analyses by the Angiosperm Phylogeny Group researchers has confirmed its basal position among flowering plants.
In addition, the Nymphaeaceae are more diverse and geographically dispersed than other basal angiosperms. Nymphaeaceae is placed in the order Nymphaeales, which is the second diverging group of angiosperms after Amborella in the most widely accepted flowering plant classification system, Nymphaeaceae is a small family of three to six genera, Barclaya, Euryale, Nuphar, Nymphaea, Ondinea, and Victoria.
The genus Barclaya is sometimes given rank as its own family, Barclayaceae, on the basis of a perianth tube arising from the top of the ovary. Asteraceae — Asteraceae or Compositae is a very large and widespread family of flowering plants.
The family currently has 32, accepted species names, in 1, genera and 13 subfamilies, in terms of numbers of species, the Asteraceae are rivaled only by the Orchidaceae. Many members have composite flowers in the form of flower heads surrounded by involucral bracts, when viewed from a distance, each capitulum may have the appearance of being a single flower. Most members of Asteraceae are herbaceous, but a significant number are also shrubs, vines, the family has a worldwide distribution, from the polar regions to the tropics, colonizing a wide variety of habitats.
Asteraceae is an important family, providing products such as cooking oils, lettuce, sunflower seeds, artichokes, sweetening agents, coffee substitutes. Several genera are of importance, including pot marigold, Calendula officinalis, Echinacea, various daisies, fleabane, chrysanthemums, dahlias, zinnias. Asteraceae are important in medicine, including Grindelia, yarrow. The genus name comes from the Classical Latin word aster, star, Compositae, an older but still valid name, means composite and refers to the characteristic inflorescence, a special type of pseudanthium found in only a few other angiosperm families.
The study of family is known as synantherology. This is because the open at dawn and close at dusk. Composite flowers have a distribution, and are found everywhere except Antarctica. They are especially numerous in tropical and subtropical regions, Compositae were first described in by the German botanist Paul Dietrich Giseke. Traditionally, two subfamilies were recognised, Asteroideae and Cichorioideae, the latter has been shown to be extensively paraphyletic, and has now been divided into 12 subfamilies, but the former still stands.
Cucurbitaceae — The Cucurbitaceae family ranks among the highest of plant families for number and percentage of species used as human food.
The Cucurbitaceae consist of 98 proposed genera with species, mainly in tropical and subtropical. All species are sensitive to frost, most of the plants in this family are annual vines, but some are woody lianas, thorny shrubs, or trees.
Many species have large, yellow or white flowers, the stems are hairy and pentangular. Leaves are exstipulate alternate simple palmately lobed or palmately compound, the flowers are unisexual, with male and female flowers on different plants or on the same plant. The female flowers have inferior ovaries, the fruit is often a kind of modified berry called a pepo. One of the oldest fossil records so far is Cucurbitaciphyllum lobatum from the Paleocene epoch, found at Shirley Canal and it was described for the first time in by Knowlton.
The fossil leaf is palmate, trilobed with rounded lobal sinuses and it has a leaf pattern similar to the members of the genera Kedrostis, Melothria and Zehneria. Cucurbits are represented in 23 of the mosaics containing images of crop plants, several of the cucurbit images have not been found elsewhere, suggesting a diverse and highly developed local horticulture of cucurbits in Israel during the Byzantine era. Representations of mature sponge gourds are found in localities, suggestive of the high value accorded to cleanliness.
Biology and Utilization of the Cucurbitaceae. The families of flowering plants, descriptions, illustrations, identification, information retrieval.
Odonata — Odonata is an order of carnivorous insects, encompassing the dragonflies and the damselflies. The Odonata form a clade, which has existed since the Triassic, dragonflies are generally larger, and perch with their wings held out to the sides, damselflies have slender bodies, and hold their wings over the body at rest. Odonata enthusiasts avoid ambiguity by using the term true dragonfly, or simply Anisopteran, the term Warriorfly has also been proposed.
Some 5, species have been described in this order and this order has traditionally been grouped together with the mayflies and several extinct orders in a group called the Paleoptera, but this grouping might be paraphyletic.
What they do share with mayflies is the nature of how the wings are articulated, in some treatments, the Odonata are understood in an expanded sense, essentially synonymous with the superorder Odonatoptera but not including the prehistoric Protodonata. In this approach, instead of Odonatoptera, the term Odonatoidea is used, the Anisoptera was long treated as a suborder, with a third suborder, the Anisozygoptera.
However, the combined suborder Epiprocta was proposed when it was found that the Anisozygoptera was paraphyletic, the four living species placed in that group are in the infraorder Epiophlebioptera, whereas the fossil taxa that were formerly there are now dispersed about the Odonatoptera. Tarsophlebiidae is a family of Odonatoptera that can be considered either a basal lineage of Odonata or their immediate sister taxon.
The heaviest living odonates are Tetracanthagyna plagiata with a span of mm. The longest extant odonate is the Neotropical helicopter damselfly Mecistogaster linearis with a length of mm.
They have three ocelli and short antennae, the mouthparts are on the underside of the head and include simple chewing mandibles in the adult. In most families there is a structure on the edge near the tip of the wing called the pterostigma. This is a thickened, hemolymph—filled and often colorful area bounded by veins, the functions of the pterostigma are not fully known, but it most probably has an aerodynamic effect and may also have a visual function. More mass at the end of the wing may also reduce the energy needed to move the wings up, the right combination of wing stiffness and wing mass could reduce the energy consumption of flying.
A pterostigma is also found among other insects, such as bees, the nymphs have stockier, shorter, bodies than the adults. In addition to lacking wings, their eyes are smaller, their antennae longer and their mouthparts are modified, with the labium being adapted into a unique prehensile organ for grasping prey.
Damselfly nymphs breathe through external gills on the abdomen, while dragonfly nymphs respire through an organ in their rectum, although generally fairly similar, dragonflies differ from damselflies in several, easily recognizable traits.
Vetro — Glass is a non-crystalline amorphous solid that is often transparent and has widespread practical, technological, and decorative usage in, for example, window panes, tableware, and optoelectronics.
The most familiar, and historically the oldest, types of glass are silicate glasses based on the chemical compound silica, the primary constituent of sand. The term glass, in usage, is often used to refer only to this type of material.
Many applications of silicate glasses derive from their optical transparency, giving rise to their use as window panes. Glass can be coloured by adding metallic salts, and can also be painted and printed with vitreous enamels and these qualities have led to the extensive use of glass in the manufacture of art objects and in particular, stained glass windows.
Although brittle, silicate glass is extremely durable, and many examples of glass fragments exist from early glass-making cultures, because glass can be formed or moulded into any shape, it has been traditionally used for vessels, bowls, vases, bottles, jars and drinking glasses. In its most solid forms it has also used for paperweights, marbles. Some objects historically were so commonly made of glass that they are simply called by the name of the material, such as drinking glasses.
Porcelains and many polymer thermoplastics familiar from everyday use are glasses and these sorts of glasses can be made of quite different kinds of materials than silica, metallic alloys, ionic melts, aqueous solutions, molecular liquids, and polymers.
For many applications, like glass bottles or eyewear, polymer glasses are a lighter alternative than traditional glass, silica is a common fundamental constituent of glass. In nature, vitrification of quartz occurs when lightning strikes sand, forming hollow, fused quartz is a glass made from chemically-pure SiO2. It has excellent resistance to shock, being able to survive immersion in water while red hot.
However, its high melting-temperature and viscosity make it difficult to work with, normally, other substances are added to simplify processing. One is sodium carbonate, which lowers the transition temperature. The soda makes the glass water-soluble, which is undesirable, so lime, some magnesium oxide. Most common glass contains other ingredients to change its properties, lead glass or flint glass is more brilliant because the increased refractive index causes noticeably more specular reflection and increased optical dispersion.
Adding barium also increases the refractive index, iron can be incorporated into glass to absorb infrared energy, for example in heat absorbing filters for movie projectors, while cerium oxide can be used for glass that absorbs UV wavelengths. Da Wikipedia, l'enciclopedia libera. Vetrata della chambre de commerce et d'industrie de Meurthe-et-Moselle.
Altri progetti Wikimedia Commons. Estratto da " https: Art Nouveau Nancy Movimenti artistici. The Palace of the Dukes of Lorraine is the princely residence of the rulers 2. The choice of subjects or scenes is nothing and it is by the value of tones, the colored surface and the harmony of lines that I can reach the spirit and wake up the emotions 3.
The sap of the giant hogweed plant is phototoxic, when the skin is exposed to sunlight or to ultraviolet rays 5. The genus Barclaya is sometimes given rank as its own family, Barclayaceae, on the basis of a perianth tube arising from the top of the ovary 6. The families of flowering plants, descriptions, illustrations, identification, information retrieval 8.
Damselfly nymphs breathe through external gills on the abdomen, while dragonfly nymphs respire through an organ in their rectum, although generally fairly similar, dragonflies differ from damselflies in several, easily recognizable traits 9. Nancy [videos] Nancy French pronunciation: Place Stanislas in the centre of town. The Ducal Palace of Nancy. Notre-Dame Cathedral of Nancy. Adele Bloch-Bauer 1 by Gustav Klimt One of the Lascaux paintings: With Clovis 's conversion to Catholicism in , the Frankish monarchy , elective and secular until then, became hereditary and of divine right.
Joan of Arc led the French army to several important victories during the Hundred Years' War , which paved the way for the final victory. Daucus carota May 1 edit. Nymphaeaceae is a family of flowering plants, commonly called water lilies. Cultivar of Nymphaea in flower. Flower of Victoria cruziana , Santa Cruz water lily. A poster with 12 different species of Asteraceae from the subfamilies Asteroideae, Cichorioideae and Carduoideae.
A typical Asteraceae flower head showing the individual flowers Bidens torta. A flower head showing the individual flowers opening from the outside Chrysanthemum cultivar 'Bridesmaid'. Pumpkins and squashes displayed in a show competition. A selection of cucurbits of the South Korean Genebank in Suwon. Odonata is an order of carnivorous insects, encompassing the dragonflies Anisoptera and the damselflies Zygoptera. Tau emerald Hemicordulia tau dragonfly.
Gomphus vulgatissimus with prey. Male blue ringtail Austrolestes annulosus , a damselfly Zygoptera: A jar made of soda-lime glass. Although transparent in thin sections, the glass is greenish-blue in thick sections from impurities. Bubbles remained trapped in the glass as it cooled from a liquid, through the glass transition, becoming a non-crystalline solid. The joining of two tubes made of lead glass during glass welding.
Bohemian flashed and engraved ruby glass 19th-century. Wine goblet , midth century. Iron is a chemical element with symbol Fe from Latin: Iron meteorite s, similar in composition to the Earth's inner- and outer core.
Ochre path in the Roussillon. Hydrated iron III chloride , also known as ferric chloride. Comparison of colors of solutions of ferrate left and permanganate right.
Steel is an alloy of iron and carbon and other elements. The steel cable of a colliery winding tower. Iron ore pellets for the production of steel. A Bessemer converter in Sheffield , England. Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. Diagram of secondary growth in a tree showing idealized vertical and horizontal sections.
A new layer of wood is added in each growing season, thickening the stem, existing branches and root s, to form a growth ring. A knot on a tree trunk. Wood knot in vertical section. Nancy - Place Stanislas - Arc de triomphe. Saint-Etienne cathedral in Metz , capital of Lorraine. Colors show the original departments' territories. Traditional hand block print Handicrafts artisan in India. Batik craftswomen in Java , Indonesia drawing batik.
A handicraft Selling-Factory shop, Isfahan - Iran. Typical Filipino handmade brooms in a restaurant of Banaue Municipal Town. A crystal of amethyst quartz. Fossil shell with calcite crystals. Vertical cooling crystallizer in a beet sugar factory. The Artemision Bronze representing either Poseidon or Zeus , c. This masterpiece of classical sculpture was found by fishermen in their nets off the coast of Cape Artemisium in The figure is more than 2 m in height. A hoard of bronze socketed axes from the Bronze Age found in modern Germany.
This was the top tool of the period, and also seems to have been used as a store of value. A Ming Dynasty porcelain vase dated to — A selection of silicon nitride components. Fire test furnace insulated with firebrick and ceramic fibre insulation. Midth century ceramic tilework on the Dome of the Rock , Jerusalem. Petite France , Strasbourg. Louis XIV receiving the keys of Strasbourg in Traditional costumes of Alsace. The German Empire German: Otto von Bismarck , the visionary statesman who unified Germany with the help of his skillful political moves and the exploitation of encountered opportunities.
Left, on the podium in black: Collage of Franco—Prussian War imagery. French reservists responding to the call, painted by Pierre-Georges Jeanniot. Map of German and French armies near their common border on 31 July View of Santa Maria del Fiore in Florence. Plan of the second floor attic storey of the Hôtel de Brionne in Paris - Date: Wrought iron is an iron alloy with a very low carbon less than 0.
The Eiffel tower is constructed from puddled iron , a form of wrought iron. A wrought iron flower, on the fence in front of the Royal Courts of Justice. Qualcuno che a Las Vegas. Donna cerca uomo Adria Le più belle ragazze e donne in cerca di avventura a las vegas donne, donne in cerca di avventura a las vegas donne in cerca di avventura a las vegas che cercano incontri personali con uomini a Adria, hanno la possibilità di dar voce e.
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