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Hedinia (plant)
''Hedinia'' is a monotypic genus of flowering plants belonging to the family Brassicaceae. It only contains one known species, ''Hedinia tibetica''. Description They are annual herbaceous plants, tall, with green stems which are procumbent (trailing) or ascending, they are densely hirsute (very hairy) with simple trichomes to 1.3 mm. The basal leaves are sparsely to densely pubescent, with a petiole (a leaf stalk supporting a blade) measuring long. They are ciliate (with a fringe of marginal hairs). The leaf blades are ovate or narrowly oblong in outline, 1- or 2-pinnatisect (cut to the mid-rib), long and wide. The cauline leaves (on an aerial stems) are similar to the basal leaves, are reduced in size with divisions toward stem apex. The racemes (flower spikes) are bracteate throughout or rarely only basally. The distal (furthest) bracts are subsessile (having a very small stalk), sometimes adnate (grown from or closely fused) to the pedicel (stalk of a flower). The frui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Hansen Ostenfeld
Carl Emil Hansen Ostenfeld (born Carl Emil Ostenfeld-Hansen) (3 August 1873 – 16 January 1931) was a Danish systematic botanist. He graduated from the University of Copenhagen under professor Eugenius Warming. He was a keeper at the Botanical Museum 1900–1918, when he became professor of botany at the Royal Veterinary and Agricultural University. In 1923, by the early retirement of Raunkiær's, Ostenfeld became professor of botany at the University of Copenhagen and director of the Copenhagen Botanical Garden, both positions held until his death in 1931. He was a member of the Royal Danish Academy of Sciences and Letters and served on the board of directors of the Carlsberg Foundation. Ostenfeld is known as an explorer of the Danish flora, including marine plankton, as well as the flora of Western Australia. Ostenfeld participated in the Ingolf expedition (1885-86) to the waters around Iceland and Greenland, and in 1911 in the International Phytogeographic Excursion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovary (plants)
In the flowering plants, an ovary is a part of the female reproductive organ of the flower or gynoecium. Specifically, it is the part of the pistil which holds the ovule(s) and is located above or below or at the point of connection with the base of the petals and sepals. The pistil may be made up of one carpel or of several fused carpels (e.g. dicarpel or tricarpel), and therefore the ovary can contain part of one carpel or parts of several fused carpels. Above the ovary is the style and the stigma, which is where the pollen lands and germinates to grow down through the style to the ovary, and, for each individual pollen grain, to fertilize one individual ovule. Some wind pollinated flowers have much reduced and modified ovaries. Fruits A fruit is the mature, ripened ovary of a flower following double fertilization in an angiosperm. Because gymnosperms do not have an ovary but reproduce through fertilization of unprotected ovules, they produce naked seeds that do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scree
Scree is a collection of broken rock fragments at the base of a cliff or other steep rocky mass that has accumulated through periodic rockfall. Landforms associated with these materials are often called talus deposits. The term ''scree'' is applied both to an unstable steep mountain slope composed of rock fragments and other debris, and to the mixture of rock fragments and debris itself. It is loosely synonymous with talus, material that accumulates at the base of a projecting mass of rock, or talus slope, a landform composed of talus. The term ''scree'' is sometimes used more broadly for any sheet of loose rock fragments mantling a slope, while ''talus'' is used more narrowly for material that accumulates at the base of a cliff or other rocky slope from which it has obviously eroded. Scree is formed by rockfall, which distinguishes it from colluvium. Colluvium is rock fragments or soil deposited by rainwash, sheetwash, or slow downhill creep, usually at the base of gentle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steppe
In physical geography, a steppe () is an ecoregion characterized by grassland plains without closed forests except near rivers and lakes. Steppe biomes may include: * the montane grasslands and shrublands biome * the tropical and subtropical grasslands, savannas, and shrublands biome * the temperate grasslands, savannas, and shrublands biome A steppe is usually covered with grass and shrubs, depending on the season and latitude. The term ''steppe climate'' denotes a semi-arid climate, which is encountered in regions too dry to support a forest, but not dry enough to be a desert. Steppes are usually characterized by a semi-arid or continental climate. Temperature extremes can be recorded in the summer of up to and in winter of down to . Besides this major seasonal difference, fluctuations between day and night are also significant: in both the highlands of Mongolia and northern Nevada, can be reached during the day with sub-freezing readings at night. Steppes ave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tibet
Tibet (; ''Böd''; ), or Greater Tibet, is a region in the western part of East Asia, covering much of the Tibetan Plateau and spanning about . It is the homeland of the Tibetan people. Also resident on the plateau are other ethnic groups such as Mongols, Monpa people, Monpa, Tamang people, Tamang, Qiang people, Qiang, Sherpa people, Sherpa, Lhoba people, Lhoba, and since the 20th century Han Chinese and Hui people, Hui. Tibet is the highest region on Earth, with an average elevation of . Located in the Himalayas, the highest elevation in Tibet is Mount Everest, Earth's highest mountain, rising above sea level. The Tibetan Empire emerged in the 7th century. At its height in the 9th century, the Tibetan Empire extended far beyond the Tibetan Plateau, from the Tarim Basin and Pamirs in the west, to Yunnan and Bengal in the southeast. It then divided into a variety of territories. The bulk of western and central Tibet (Ü-Tsang) was often at least nominally unified under a ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tadzhikistan
Tajikistan, officially the Republic of Tajikistan, is a landlocked country in Central Asia. Dushanbe is the capital and most populous city. Tajikistan borders Afghanistan to the south, Uzbekistan to the west, Kyrgyzstan to the north, and China to the east. It is separated from Pakistan by Afghanistan's Wakhan Corridor. It has a population of over 10.7 million people. The territory was previously home to cultures of the Neolithic and the Bronze Age, including the Oxus civilization in west, with the Indo-Iranians arriving during the Andronovo culture. Parts of country were part of the Sogdian and Bactrian civilizations, and was ruled by those including the Achaemenids, Alexander the Great, the Greco-Bactrians, the Kushans, the Kidarites and Hephthalites, the First Turkic Khaganate, the Umayyad and Abbasid Caliphates, the Samanid Empire, the Kara-Khanids, Seljuks, Khwarazmians, the Mongols, Timurids and Khanate of Bukhara. The region was later conquered by the Russian Empir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nepal
Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked country in South Asia. It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain. It borders the Tibet Autonomous Region of China China–Nepal border, to the north, and India India–Nepal border, to the south, east, and west, while it is narrowly separated from Bangladesh by the Siliguri Corridor, and from Bhutan by the States and union territories of India, Indian state of Sikkim. Nepal has a Geography of Nepal, diverse geography, including Terai, fertile plains, subalpine forested hills, and eight of the world's ten List of highest mountains#List, tallest mountains, including Mount Everest, the highest point on Earth. Kathmandu is the nation's capital and List of cities in Nepal, its largest city. Nepal is a multi-ethnic, multi-lingual, multi-religious, and multi-cultural state, with Nepali language, Nepali as the official language. The name "Nepal" is first record ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyrgyzstan
Kyrgyzstan, officially the Kyrgyz Republic, is a landlocked country in Central Asia lying in the Tian Shan and Pamir Mountains, Pamir mountain ranges. Bishkek is the Capital city, capital and List of cities in Kyrgyzstan, largest city. Kyrgyzstan is bordered by Kazakhstan to the Kazakhstan–Kyrgyzstan border, north, Uzbekistan to the Kyrgyzstan–Uzbekistan border, west, Tajikistan to the Kyrgyzstan–Tajikistan border, south, and China to the China–Kyrgyzstan border, east and southeast. Ethnic Kyrgyz people, Kyrgyz make up the majority of the country's over 7 million people, followed by significant minorities of Uzbeks and Russians. Kyrgyzstan's history spans a variety of cultures and empires. Although geographically isolated by its highly mountainous terrain, Kyrgyzstan has been at the crossroads of several great civilizations as part of the Silk Road along with other commercial routes. Inhabited by a succession of tribes and clans, Kyrgyzstan has periodically fallen unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xinjiang
Xinjiang,; , SASM/GNC romanization, SASM/GNC: Chinese postal romanization, previously romanized as Sinkiang, officially the Xinjiang Uygur Autonomous Region (XUAR), is an Autonomous regions of China, autonomous region of the China, People's Republic of China (PRC), located in the Northwest China, northwest of the country at the crossroads of Central Asia and East Asia. Being the List of Chinese administrative divisions by area, largest province-level division of China by area and the List of the largest country subdivisions by area, 8th-largest country subdivision in the world, Xinjiang spans over and has about 25 million inhabitants. Xinjiang Borders of China, borders the countries of Afghanistan, India, Kazakhstan, Kyrgyzstan, Mongolia, Pakistan, Russia, and Tajikistan. The rugged Karakoram, Kunlun Mountains, Kunlun and Tian Shan mountain ranges occupy much of Xinjiang's borders, as well as its western and southern regions. The Aksai Chin and Trans-Karakoram Tract regions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qinghai
Qinghai is an inland Provinces of China, province in Northwestern China. It is the largest provinces of China, province of China (excluding autonomous regions) by area and has the third smallest population. Its capital and largest city is Xining. Qinghai borders Gansu on the northeast, Xinjiang on the northwest, Sichuan on the southeast and the Tibet Autonomous Region on the southwest. Qinghai province was established in 1928 during the period of the Republic of China (1912–1949), Republic of China, and until 1949 was ruled by Hui people, Chinese Muslim warlords known as the Ma clique. The Chinese language, Chinese name "Qinghai" is after Qinghai Lake, the largest lake in China. The lake is known as Tso ngon in Tibetan, and as Kokonor Lake in English, derived from the Mongol Oirat language, Oirat name for Qinghai Lake. Both Tso ngon and Kokonor are names found in historic documents to describe the region.Gangchen Khishong, 2001. ''Tibet and Manchu: An Assessment of Tibet-Man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Nomenclature
In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (often shortened to just "binomial"), a binomen, name, or a scientific name; more informally, it is also called a Latin name. In the International Code of Zoological Nomenclature (ICZN), the system is also called nomenclature, with an "n" before the "al" in "binominal", which is a typographic error, meaning "two-name naming system". The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Hom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sven Hedin
Sven Anders Hedin, KNO1kl RVO,Wennerholm, Eric (1978) ''Sven Hedin – En biografi'', Bonniers, Stockholm (19 February 1865 – 26 November 1952) was a Swedish geographer, topographer, explorer, photographer, travel writer and illustrator of his own works. During four expeditions to Central Asia, he made the Transhimalaya known in the West and located sources of the Brahmaputra, Indus and Sutlej Rivers. He also mapped lake Lop Nur, and the remains of cities, grave sites and the Great Wall of China in the deserts of the Tarim Basin. In his book ''Från pol till pol'' (''From Pole to Pole''), Hedin describes a journey through Asia and Europe between the late 1880s and the early 1900s. While traveling, Hedin visited Turkey, the Caucasus, Tehran, Iraq, lands of the Kyrgyz people and the Russian Far East, India, China and Japan. The posthumous publication of his ''Central Asia Atlas'' marked the conclusion of his life's work. Overview At 15 years of age, Hedin witnessed the tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
