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University Of Toronto President's Estate
The University of Toronto President's Estate is a property with a 32-room residence for the president of the University of Toronto. It is located at 93 Highland Avenue in the Rosedale neighbourhood of Toronto, Ontario, Canada. The property overlooks the Park Drive Reservation Ravine formed by Yellow Creek and goes from Highland Avenue halfway down to the floor of the ravine. The house was built between 1908 and 1910 by Toronto architects Wickson and Gregg. It was the home of gold-mining magnate David Dunlap and his philanthropist wife, Jessie (who donated the David Dunlap Observatory to the University of Toronto in 1935 in honour of her late husband). After Mrs. Dunlap's death in 1946, the house went through one owner before being purchased in 1956 by U of T as a suitable residence for its president. Gardens and natural history The upper lawn is bounded by mature ''Quercus'' and ''Acer saccharum'' on the north with a single mature specimen of '' Acer saccharinum'' and '' Ailan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picture 029
An image is a visual representation of something. It can be two-dimensional, three-dimensional, or somehow otherwise feed into the visual system to convey information. An image can be an artifact, such as a photograph or other two-dimensional picture, that resembles a subject. In the context of signal processing, an image is a distributed amplitude of color(s). In optics, the term “image” may refer specifically to a 2D image. An image does not have to use the entire visual system to be a visual representation. A popular example of this is of a greyscale image, which uses the visual system's sensitivity to brightness across all wavelengths, without taking into account different colors. A black and white visual representation of something is still an image, even though it does not make full use of the visual system's capabilities. Images are typically still, but in some cases can be moving or animated. Characteristics Images may be two or three- dimensional, such as a ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Rubra
''Quercus rubra'', the northern red oak, is an oak tree in the red oak group (''Quercus'' section ''Lobatae''). It is a native of North America, in the eastern and central United States and southeast and south-central Canada. It has been introduced to small areas in Western Europe, where it can frequently be seen cultivated in gardens and parks. It prefers good soil that is slightly acidic. Often simply called red oak, northern red oak is so named to distinguish it from southern red oak (''Q. falcata''), also known as the Spanish oak. Northern Red Oak is sometimes called champion oak. Description In many forests, this deciduous tree grows straight and tall, to , exceptionally to tall, with a trunk of up to in diameter. Open-grown trees do not get as tall, but can develop a stouter trunk, up to in diameter. It has stout branches growing at right angles to the stem, forming a narrow round-topped head. Under optimal conditions and full sun, northern red oak is fast growin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuchsia
''Fuchsia'' () is a genus of flowering plants that consists mostly of shrubs or small trees. The first to be scientifically described, ''Fuchsia triphylla'', was discovered on the Caribbean island of Hispaniola (Haiti and the Dominican Republic) about 1696–1697 by the French Minim monk and botanist, Charles Plumier, during his third expedition to the Greater Antilles. He named the new genus after German botanist Leonhart Fuchs (1501–1566). Taxonomy The fuchsias are most closely related to the northern hemisphere genus ''Circaea'', the two lineages having diverged around 41 million years ago. Description Almost 110 species of ''Fuchsia'' are recognized; the vast majority are native to South America, but a few occur north through Central America to Mexico, and also several from New Zealand to Tahiti. One species, '' F. magellanica'', extends as far as the southern tip of South America, occurring on Tierra del Fuego in the cool temperate zone, but the majority are tro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Begonia
''Begonia'' is a genus of perennial flowering plants in the family Begoniaceae. The genus contains more than 2,000 different plant species. The Begonias are native to moist subtropical and tropical climates. Some species are commonly grown indoors as ornamental houseplants in cooler climates. In cooler climates some species are cultivated outside in summertime for their bright colorful flowers, which have sepals but no petals. Description With 2,002 species, ''Begonia'' is one of the largest genera of flowering plants. The species are terrestrial (sometimes epiphytic) herbs or undershrubs, and occur in subtropical and tropical moist climates, in South and Central America, Africa, and southern Asia. Terrestrial species in the wild are commonly upright- stemmed, rhizomatous, or tuberous. The plants are monoecious, with unisexual male and female flowers occurring separately on the same plant; the male contains numerous stamens, and the female has a large inferior ovary and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelidonium Majus
''Chelidonium majus'', the greater celandine, is a perennial herbaceous flowering plant in the poppy family Papaveraceae. One of two species in the genus ''Chelidonium'', it is native to Europe and western Asia and introduced widely in North America. The plant known as lesser celandine ('' Ficaria verna'') is not closely related, as it belongs to the buttercup family Ranunculaceae. Description Greater celandine is a perennial herbaceous plant with an erect habit, and reaches high. The blue-green leaves are pinnate with lobed and wavy margins, up to long. When injured, the plant exudes a yellow to orange latex. The flowers consist of four yellow petals, each about long, with two sepals. A double-flowered variety occurs naturally. The flowers appear from late spring to summer, May to September (in the UK), in umbelliform cymes of about 4 flowers. The seeds are small and black, borne in a long, cylindrical capsule. Each has an elaiosome, which attracts ants to disperse the se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxus Cuspidata
''Taxus cuspidata'', the Japanese yew or spreading yew, is a member of the genus ''Taxus'', native to Japan, Korea, northeast China and the extreme southeast of Russia. It is an evergreen tree or large shrub growing to 10–18 m tall, with a trunk up to 60 cm diameter. The leaves are lanceolate, flat, dark green, 1–3 cm long and 2–3 mm broad, arranged spirally on the stem, but with the leaf bases twisted to align the leaves in two flattish rows either side of the stem except on erect leading shoots where the spiral arrangement is more obvious. The seed cones are highly modified, each cone containing a single seed 4–8 mm long partly surrounded by a modified scale which develops into a soft, bright red berry-like structure called an aril, 8–12 mm long and wide and open at the end. The arils are mature 6–9 months after pollination. Individual trees from Sikhote-Alin are known to have been 1,000 years old. Uses It is widely grown in eastern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranunculus Acris
''Ranunculus acris'' is a species of flowering plant in the family Ranunculaceae, and is one of the more common buttercups across Europe and temperate Eurasia. Common names include meadow buttercup, tall buttercup, common buttercup and giant buttercup. Description ''Ranunculus acris'' is a herbaceous perennial plant that grows to a height of 30 to 70 cm, with ungrooved flowing stems bearing glossy yellow flowers about 25 mm across. There are five overlapping petals borne above five green sepals that soon turn yellow as the flower matures. It has numerous stamens inserted below the ovary. The leaves are compound, with three-lobed leaflets. Unlike '' Ranunculus repens'', the terminal leaflet is sessile. As with other members of the genus, the numerous seeds are borne as achenes. The rare autumn buttercup (''R. aestivalis'') is sometimes treated as a variety of this species. The juice of the plant is semi-poisonous to livestock, causing blistering. Distribution The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potentilla Recta
''Potentilla recta'', the sulphur cinquefoil or rough-fruited cinquefoil, is a species of Potentilla, cinquefoil. It is native to Eurasia but it is present in North America as an introduced species, ranging through almost the entire continent except the northernmost part of Canada and Alaska. The plant probably originated in the Mediterranean Basin, and it was first collected in the 19th century in Ontario and in 1914 in British Columbia. It is known as a minor noxious weed in some areas. It occurs in many types of habitat, including disturbed, weedy places. Description Sulphur cinquefoil is a perennial herb and is a tufted plant growing from a woody taproot or caudex. It produces upright to erect leafy stems up to tall. The upper part of the stem is branched and densely hairy, and it also bears some glandular hairs. The lower leaves have long stalks and the stem leaves are arranged alternately and have short stalks. All the leaves are palmate, divided into usually six or seven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteris
''Pteris'' (brake) is a genus of about 300 species of ferns in the subfamily Pteridoideae of the family Pteridaceae. They are native to tropical and subtropical regions, southward to New Zealand, Australia, and South Africa, north to Japan and North America. 78 species (35 endemic) are found in China. Some species of Pteris have considerable economic and ecological value, such as Pteris multifida, Pteris ensiformis, Pteris vittata can be used for ornamental purposes; as a hyperaccumulator, Pteris multifida and Pteris vittata can be used to control soil pollution. Many of them have linear frond segments, and some have sub-palmate division. Like other members of the Pteridaceae, the frond margin is reflexed over the marginal sori. The outermost layer is the single layered epidermis without stomata. The cortex is differentiated into outer and inner cortical region. The vascular cylinder is an amphiphloic siphonostele. The term "brake", used for members of this genus, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malus Coronaria
''Malus coronaria'', also known by the names sweet crabapple or garland crab, is a North American species of ''Malus'' (crabapple). Description ''Malus coronaria'' often is a bushy shrub with rigid, contorted branches, but frequently becomes a small tree up to tall, with a broad open crown. Its flowering time is about two weeks later than that of the domestic apple, and its fragrant fruit clings to the branches on clustered stems long after the leaves have fallen. The bark is reddish brown, longitudinally fissured, with surface separating in narrow scales. Branchlets at first coated with thick white wool, later they become smooth reddish brown; they develop in their second year long, spur-like branches and sometimes absolute thorns or more in length. The wood is reddish brown, the sapwood yellow; it is heavy, close-grained, not strong. Used for the handles of tools and small domestic articles. It has a specific gravity of 0.7048; and density . Its winter buds are bright red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus Pumila
''Ulmus pumila'', the Siberian elm, is a tree native to Asia. It is also known as the Asiatic elm and dwarf elm, but sometimes miscalled the 'Chinese Elm' ('' Ulmus parvifolia''). ''U. pumila'' has been widely cultivated throughout Asia, North America, Argentina, and southern Europe, becoming naturalized in many places, notably across much of the United States. Description The Siberian elm is usually a small to medium-sized, often bushy, deciduous tree growing to tall, the diameter at breast height to . The bark is dark gray, irregularly longitudinally fissured. The branchlets are yellowish gray, glabrous or pubescent, unwinged and without a corky layer, with scattered lenticels. The winter buds dark brown to red-brown, globose to ovoid. The petiole is , pubescent, the leaf blade elliptic-ovate to elliptic-lanceolate, , the colour changing from dark green to yellow in autumn.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) ''Flora of Chin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hieracium Canadense
''Hieracium umbellatum'' (commonly called ''Hieracium canadense''), the Canadian hawkweed, Canada hawkweed, narrowleaf hawkweed, or northern hawkweed, is a flowering plant in the family Asteraceae. Distribution It is native to most of the temperate parts of the northern hemisphere. Description Its pointed leaves have toothed margins, where the teeth can appear almost hooked. The flowers of the plant are yellow. Infraspecific synonyms There are many named infraspecific taxa of ''Hieracium umbellatum'': References * * * * * * * {{Taxonbar, from1=Q968658, from2=Q41726620 Hieracium, umbellatum Flora of Asia Flora of Europe Flora of North America Taxa named by Carl Linnaeus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_(27)_(17008356190).jpg "Click for more on -> Quercus Rubra")
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