Cinnadenia | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Magnoliids |
Order: | Laurales |
Family: | Lauraceae |
Genus: | Cinnadenia Kosterm. |
Species | |
Cinnadenia is a flowering plant genus belonging to the family Lauraceae. They are present in low and mountain cloud forests in Southeast Asia.
The genus was described originally from Vietnam by André Joseph Guillaume Henri Kostermans, and published in 1973. [1] The type species is Cinnadenia paniculata . [2]
The Cinnadenia are trees can grow up to 40 meters tall, though most are between 3 and 30 meters. [3] They are hermaphrodites, and some species grow slowly as canopy trees. The leaves are alternate, entire, and elliptical or narrowly elliptical; they are 10 to 25 cm long and 3 to 8 cm wide. Many species have valuable timber; others´ wood and bark are pleasantly scented, like most of the genera of the Lauraceae, such as Cinnamomum . The oils extracted are used as ingredients in the manufacture of perfumes.[ citation needed ]
They grow in evergreen tropical forests. Species in less humid environment are smaller or less robust, with less abundant and thinner foliage and have oleifera cells that give trees a more fragrant aroma. It is present in the Himalayas Mountain cloud forest in Bhutan, Assam, Myanmar, and Vietnam. They grow also in evergreen lowlands tropical laurel forests. They do not form large stands, but rather small groups of trees with a density of up to one individual per five hectares.[ citation needed ]
The ecological requirements of the genus are those of fog moisture precipitating almost continuously in a natural habitat, cloud-covered for much of the year. These species are found in tropical forests, subtropical temperate evergreen, or montane evergreen forests, which are a type of rainforest or cloud forest. The ecosystem is characterized by high humidity, no seasonal changes, and a wide variety of botanical and zoological species, but also highly fragile against external aggressions. The temperate evergreen and evergreen forests are typically multispecies with evergreen and hardwood trees, reaching up to 40 m in height. The forests are made up of laurel-leaved evergreen hardwood trees, harbouring a rich biota of understorey plants, invertebrates, birds, and mammals. It is present in tropical and subtropical montane rainforest, laurel forest, in the weed-tree forests in valleys, mixed forests of coniferous and deciduous broad-leaved trees, Tsuga forests; 2,000–2,600 metres (6,600–8,500 ft) from northern Vietnam to the Himalayas.
Cinnadenia species require continuously moist soil, and do not tolerate drought. The laurel trees falls within the broad-leaved forests; mid-montane deciduous forests; and high-montane mixed stunted forests. Some species growing to high altitude forests at 1,500–3,300 metres (4,900–10,800 ft). Three taxa are commonly found at tree line: an evergreen, needle-leaved gymnosperm ( Abies pindrow Spach.), an evergreen, broad-leaved sclerophyllous oak ( Quercus semecarpifolia Sm.), and a deciduous, broad-leaved birch ( Betula utilis Don). Vernal flowering is common at this elevation in Central Himalaya. In general, in their elevational distribution and structural-functional attributes, these high-altitude forests are similar to other forests of cool temperate zones in Himalaya.
The most known trees are used by the timber industry. Cinnadenia malayana is on the Red List of Threatened Species.[ citation needed ]
Lauraceae, or the laurels, is a plant family that includes the true laurel and its closest relatives. This family comprises about 2850 known species in about 45 genera worldwide. They are dicotyledons, and occur mainly in warm temperate and tropical regions, especially Southeast Asia and South America. Many are aromatic evergreen trees or shrubs, but some, such as Sassafras, are deciduous, or include both deciduous and evergreen trees and shrubs, especially in tropical and temperate climates. The genus Cassytha is unique in the Lauraceae in that its members are parasitic vines. Most laurels are highly poisonous.
Temperate rainforests are rainforests with coniferous or broadleaf forests that occur in the temperate zone and receive heavy rain.
Persea is a genus of about 150 species of evergreen trees belonging to the laurel family, Lauraceae. The best-known member of the genus is the avocado, P. americana, widely cultivated in subtropical regions for its large, edible fruit.
Laurel forest, also called laurisilva or laurissilva, is a type of subtropical forest found in areas with high humidity and relatively stable, mild temperatures. The forest is characterized by broadleaf tree species with evergreen, glossy and elongated leaves, known as "laurophyll" or "lauroid". Plants from the laurel family (Lauraceae) may or may not be present, depending on the location.
Castanopsis, commonly called chinquapin or chinkapin, is a genus of evergreen trees belonging to the beech family, Fagaceae. The genus contains about 140 species, which are today restricted to tropical and subtropical eastern Asia. A total of 58 species are native to China, with 30 endemic; the other species occur further south, through Indochina to Indonesia and the Philippines, mountainous areas of Taiwan, and also in Japan. The English name chinkapin is shared with other related plants, including the golden chinkapins of the Pacific United States, which are sometimes included within Castanopsis but are more often considered a separate but very closely related genus, Chrysolepis.
Cinnamomum is a genus of evergreen aromatic trees and shrubs belonging to the laurel family, Lauraceae. The species of Cinnamomum have aromatic oils in their leaves and bark. The genus contains approximately 250 species, distributed in tropical and subtropical regions of South Asia, Southeast Asia, East Asia and Oceania/Australasia. The genus includes a great number of economically important trees used to produce the spice of cinnamon.
A temperate forest is a forest found between the tropical and boreal regions, located in the temperate zone. It is the second largest terrestrial biome, covering 25% of the world's forest area, only behind the boreal forest, which covers about 33%. These forests cover both hemispheres at latitudes ranging from 25 to 50 degrees, wrapping the planet in a belt similar to that of the boreal forest. Due to its large size spanning several continents, there are several main types: deciduous, coniferous, mixed forest, and rainforest.
The Wuyi Mountains or Wuyishan are a mountain range located in the prefecture of Nanping, in northern Fujian province near the border with Jiangxi province, China. The highest peak in the area is Mount Huanggang at 2,158 metres (7,080 ft) on the border of Fujian and Jiangxi, making it the highest point of both provinces; the lowest altitudes are around 200 metres (660 ft). Many oolong and black teas are produced in the Wuyi Mountains, including Da Hong Pao and lapsang souchong, and are sold as Wuyi tea. The mountain range is known worldwide for its status as a refugium for several rare and endemic plant species, its dramatic river valleys, and the abundance of important temples and archeological sites in the region, and is a UNESCO World Heritage Site.
An evergreen forest is a forest made up of evergreen trees. They occur across a wide range of climatic zones, and include trees such as conifers and holly in cold climates, eucalyptus, live oak, acacias, magnolia, and banksia in more temperate zones, and rainforest trees in tropical zones.
The Hernandiaceae are a family of flowering plants (angiosperms) in the order Laurales. Consisting of five genera with about 58 known species, they are distributed over the world's tropical areas, some of them widely distributed in coastal areas, but they occur from sea level to over 2000 m.
Phoebe is a genus of evergreen trees and shrubs belonging to the Laurel family, Lauraceae. There are 75 accepted species in the genus, distributed in tropical and subtropical Asia and New Guinea. 35 species occur in China, of which 27 are endemic. The first description of the genus was of the type species P. lanceolata made in 1836 by Christian Gottfried Daniel Nees von Esenbeck in Systema Laurinarum, p. 98.
The Northern Indochina subtropical forests are a subtropical moist broadleaf forest ecoregion of northern Indochina, covering portions of Vietnam, Laos, Thailand, Myanmar, and China's Yunnan Province.
Actinodaphne is an Asian genus of flowering plants in the laurel family (Lauraceae). It contains approximately 125 species of dioecious evergreen trees and shrubs.
Beilschmiedia is a genus of trees and shrubs in family Lauraceae. Most of its species grow in tropical climates, but a few of them are native to temperate regions, and they are widespread in tropical Asia, Africa, Madagascar, Australia, New Zealand, North America, Central America, the Caribbean, and South America. The best-known species to gardeners in temperate areas are B. berteroana and B. miersii because of their frost tolerance. Seeds of B. bancroftii were used as a source of food by Australian Aborigines. Timbers of some species are very valuable.
The flora of China consists of a diverse range of plant species including over 39,000 vascular plants, 27,000 species of fungi and 3000 species of bryophytes. More than 30,000 plant species are native to China, representing nearly one-eighth of the world's total plant species, including thousands found nowhere else on Earth. China's land, extending over 9.6 million km, contains a variety of ecosystems and climates for plants to grow in. Some of the main climates include shores, tropical and subtropical forests, deserts, elevated plateaus and mountains. The events of the continental drift and early Paleozoic Caledonian movement also play a part in creating climatic and geographical diversity resulting in high levels of endemic vascular flora. These landscapes provide different ecosystems and climates for plants to grow in, creating a wide variety of different flora spanning over not just China, but different parts of the world.
Dodecadenia is a botanical genus of flowering plants in the family Lauraceae. It contains a single species, Dodecadenia grandiflora. It is present from central Asia, to Himalayas and India. It is present in tropical and subtropical montane rainforest, laurel forest, in the weed-tree forests in valleys, mixed forests of coniferous and deciduous broad-leaved trees, Tsuga forests; 2,000–2,600 metres (6,600–8,500 ft) in China in provinces of Sichuan, Xizang, Yunnan, and countries of Bhutan, India, Myanmar, and Nepal.
Aspidostemon is a genus of flowering plants belonging to the family Lauraceae. It occurs in Madagascar.
Dehaasia is a genus of evergreen or deciduous trees or shrubs belonging to the laurel family, Lauraceae, with 53 species native to continental Asia, from India to China, and islands of Borneo, New Guinea, and Indonesia.
Kubitzia is an American neotropical flowering plant genus in the family Lauraceae with two species from South America.
Syndiclis is a genus of flowering plants in the family Lauraceae. It contains ten species, which are native to China, Vietnam and Hainan, and Bhutan.