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Cedrus
''Cedrus'', common English name cedar, is a genus of coniferous trees in the plant family Pinaceae (subfamily Abietoideae). They are native to the mountains of the western Himalayas and the Mediterranean region, occurring at altitudes of 1,500–3,200 m in the Himalayas and 1,000–2,200 m in the Mediterranean.Farjon, A. (1990). ''Pinaceae. Drawings and Descriptions of the Genera''. Koeltz Scientific Books . Description ''Cedrus'' trees can grow up to 30–40 m (occasionally 60 m) tall with spicy-resinous scented wood, thick ridged or square-cracked bark, and broad, level branches. The shoots are dimorphic and are made up of long shoots, which form the framework of the branches, and short shoots, which carry most of the leaves. The leaves are evergreen and needle-like, 8–60 mm long, arranged in an open spiral phyllotaxis on long shoots, and in dense spiral clusters of 15–45 together on short shoots; they vary from bright grass-green to dark gre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrus Atlantica2
''Cedrus'', common English name cedar, is a genus of coniferous trees in the plant family Pinaceae (subfamily Abietoideae). They are native plant, native to the mountains of the western Himalayas and the Mediterranean region, occurring at altitudes of 1,500–3,200 m in the Himalayas and 1,000–2,200 m in the Mediterranean.Farjon, A. (1990). ''Pinaceae. Drawings and Descriptions of the Genera''. Koeltz Scientific Books . Description ''Cedrus'' trees can grow up to 30–40 m (occasionally 60 m) tall with spicy-resinous scented wood, thick ridged or square-cracked Bark (botany), bark, and broad, level branches. The shoots are dimorphic and are made up of long shoots, which form the framework of the branches, and short shoots, which carry most of the leaves. The leaf, leaves are evergreen and needle-like, 8–60 mm long, arranged in an open spiral phyllotaxis on long shoots, and in dense spiral clusters of 15–45 together on short shoots; they vary fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrus Atlantica
''Cedrus atlantica'', the Atlas cedar, is a species of tree in the pine family Pinaceae, native to the Rif and Atlas Mountains of Morocco (Middle Atlas, High Atlas), and to the Tell Atlas in Algeria.Gaussen, H. (1964). Genre ''Cedrus''. Les Formes Actuelles. ''Trav. Lab. For. Toulouse'' T2 V1 11: 295-320 A majority of the modern sourcesFarjon, A. (1990). ''Pinaceae. Drawings and Descriptions of the Genera''. Koeltz Scientific Books .Farjon, A. (2008). ''A Natural History of Conifers''. Timber Press . treat it as a distinct species ''Cedrus atlantica'', but some sources consider it a subspecies of Lebanon cedar (''C. libani'' subsp. ''atlantica''). Description Fully grown, Atlas cedar is a large coniferous evergreen tree, (rarely 40 m) tall, with a trunk diameter of . It is very similar in all characters to the other varieties of Lebanon cedar; differences are hard to discern. The mean cone size tends to be somewhat smaller (although recorded to 12 cm, only rarely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrus Elegans
''Cedrus libani'', the cedar of Lebanon or Lebanese cedar (), is a species of tree in the genus cedrus, a part of the pine family, native to the mountains of the Eastern Mediterranean basin. It is a large evergreen conifer that has great religious and historical significance in the cultures of the Middle East, and is referenced many times in the literature of ancient civilisations. It is the national emblem of Lebanon and is widely used as an ornamental tree in parks and gardens. Description ''Cedrus libani'' can reach in height, with a massive monopodial columnar trunk up to in diameter.Farjon 2010, p. 258 The trunks of old trees ordinarily fork into several large, erect branches.Masri 1995 The rough and scaly bark is dark grey to blackish brown, and is run through by deep, horizontal fissures that peel in small chips. The first-order branches are ascending in young trees; they grow to a massive size and take on a horizontal, wide-spreading disposition. Second-order branche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinaceae
The Pinaceae, or pine family, are conifer trees or shrubs, including many of the well-known conifers of commercial importance such as cedars, firs, hemlocks, larches, pines and spruces. The family is included in the order Pinales, formerly known as Coniferales. Pinaceae are supported as monophyletic by their protein-type sieve cell plastids, pattern of proembryogeny, and lack of bioflavonoids. They are the largest extant conifer family in species diversity, with between 220 and 250 species (depending on taxonomic opinion) in 11 genera, and the second-largest (after Cupressaceae) in geographical range, found in most of the Northern Hemisphere, with the majority of the species in temperate climates, but ranging from subarctic to tropical. The family often forms the dominant component of boreal, coastal, and montane forests. One species, ''Pinus merkusii'', grows just south of the equator in Southeast Asia. Major centres of diversity are found in the mountains of southwest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conifer
Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All extant conifers are perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews.Campbell, Reece, "Phylum Coniferophyta". Biology. 7th. 2005. Print. P. 595 As of 1998, the division Pinophyta was estimated to contain eight families, 68 genera, and 629 living species. Although the total number of species is relatively small, conifers are ecologically important. They are the dominant plants over large areas of land, most notably the taiga of the Northern Hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al Shouf Cedar Nature Reserve
Al Shouf Cedar Nature Reserve is a nature reserve in the Chouf and Aley districts of Lebanon. It is located on the slopes of Jebel Baruk mountain and has an area of , nearly 5.3% of the Lebanese territory, making it the largest natural reserve in Lebanon. The reserve contains the Lebanon cedar forests of Barouk, Maaser el Shouf and Ain Zhalta-Bmohray. It is an Important Bird Area (IBA) and Eco-tourism area. It hosts 32 species of wild mammals, 200 species of birds, and 500 species of plants. Geodiversity The Barouk mountain comprises rocks from the Pliocene which have undergone major tectonic movement that divided the mountains of Lebanon into two parallel parts; the eastern range is called the Anti-Lebanon, and the western range is called Mount Lebanon. The two mountain ranges are separated by the Beqaa Valley, which is composed of recent infill sediments. The main rocks are limestone. The whole of the Barouk Mountain is cavernous limestone, with many surface features such as do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conifer Cone
A conifer cone (in formal botanical usage: strobilus, plural strobili) is a seed-bearing organ on gymnosperm plants. It is usually woody, ovoid to globular, including scales and bracts arranged around a central axis, especially in conifers and cycads. The cone of Pinophyta (conifer clade) contains the reproductive structures. The woody cone is the female cone, which produces seeds. The male cone, which produces pollen, is usually herbaceous and much less conspicuous even at full maturity. The name "cone" derives from Greek ''konos'' (pine cone), which also gave name to the geometric cone. The individual plates of a cone are known as ''scales''. The ''umbo'' of a conifer cone refers to the first year's growth of a seed scale on the cone, showing up as a protuberance at the end of the two-year-old scale. The male cone (microstrobilus or pollen cone) is structurally similar across all conifers, differing only in small ways (mostly in scale arrangement) from species to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barouk
Barouk ( ar, باروك) is a village in the Chouf District of Mount Lebanon Governorate in Lebanon. Barouk is located 52 kilometers southeast of Beirut. Its average elevation is 1000 to 1200 meters above sea level and its total land area consists of 2,762 hectares. The village had 5,197 registered voters in 2010. Its inhabitants are predominantly Druze and Maronite and Melkite Christians. Historically, Barouk is known for being the "land of good", because of its fountain, Nabeh-el-Barouk. The poet Rachid Nakhleh, the writer of the national hymn, ''Kulluna lel watan'', was born in Barouk. The village is also well known for its apples and other fruits, and for its many pine and oak forests. Barouk is named after the adjacent mountain of Jabal el-Barouk, which stands 1,943 meters above sea level. The mountain also has the largest nature reserve in Lebanon, the Al Shouf Cedar Nature Reserve, and contains the oldest cedar Cedar may refer to: Trees and plants *''Cedrus'', common Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Mountains
The Atlas Mountains are a mountain range in the Maghreb in North Africa. It separates the Sahara Desert from the Mediterranean Sea and the Atlantic Ocean; the name "Atlantic" is derived from the mountain range. It stretches around through Morocco, Algeria and Tunisia. The range's highest peak is Toubkal, which is in central Morocco, with an elevation of . The Atlas mountains are primarily inhabited by Berber populations. The terms for 'mountain' are ''Adrar'' and ''adras'' in some Berber languages, and these terms are believed to be cognates of the toponym ''Atlas''. The mountains are also home to a number of animals and plants which are mostly found within Africa but some of which can be found in Europe. Many of these species are endangered and a few are already extinct. The weather is cooling but has sunny summers, and the average temperature there is 25°C.Atlas Mountains are a mountain range in the Maghreb in North Africa. It separates the Sahara Desert from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himalayas
The Himalayas, or Himalaya (; ; ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the planet's highest peaks, including the very highest, Mount Everest. Over 100 peaks exceeding in elevation lie in the Himalayas. By contrast, the highest peak outside Asia ( Aconcagua, in the Andes) is tall. The Himalayas abut or cross five countries: Bhutan, India, Nepal, China, and Pakistan. The sovereignty of the range in the Kashmir region is disputed among India, Pakistan, and China. The Himalayan range is bordered on the northwest by the Karakoram and Hindu Kush ranges, on the north by the Tibetan Plateau, and on the south by the Indo-Gangetic Plain. Some of the world's major rivers, the Indus, the Ganges, and the Tsangpo–Brahmaputra, rise in the vicinity of the Himalayas, and their combined drainage basin is home to some 600 million people; 53 million people live in the Himalayas. The Himalaya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen
Pollen is a powdery substance produced by seed plants. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of gymnosperms. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics. Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christoph Jakob Trew
Christoph Jacob Trew (16 April 1695 in Lauf an der Pegnitz – 18 July 1769) was a Germans, German Botany, botanist. He was originally a city solicitor, court physician, Count Palatine of the Holy Roman Empire, an advisor to the Margrave of Brandenburg-Ansbach. He also had an academic passion for botany. He was a member of the Royal Society of London, the Prussian Academy of Arts, Berlin Academy, and the Florentine Botanical Society. His interest in botany then led him to sponsor the publication of illustrated botanical books. In 1732, Christoph Jacob Trew saw some of Georg Ehret's drawings. Ehret was a botanist and illustrator, from Heidelberg, Germany. Liking them, Trew then became Ehret's patron. Ehret sent many paintings to Trew over the next few years. Between 1750-1773 Trew began ''Plantae Selectae Quarum Imagines'' (it was published in Nuremberg). It has many illustrations by Georg Ehret. Trew wrote the plant descriptions. Up to 16 new names of plants were published by T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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