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Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales.
Dalbergia is a large genus of small to medium-size trees, shrubs and lianas in the pea family, Fabaceae, subfamily Faboideae. It was recently assigned to the informal monophyletic Dalbergia clade : the Dalbergieae. The genus has a wide distribution, native to the tropical regions of Central and South America, Africa, Madagascar and southern Asia.
Cocobolo is a tropical hardwood of Central American trees belonging to the genus Dalbergia. Only the heartwood of cocobolo is used; it is usually orange or reddish-brown, often with darker irregular traces weaving through the wood. The heartwood changes color after being cut, and can be polished to a lustrous, glassy finish; being quite dense, sometimes having a specific gravity of over 1.0, it will sink in water. The sapwood is a creamy yellow, with a sharp boundary between it and the heartwood.
Dalbergia melanoxylon is a flowering plant in the family Fabaceae, native to seasonally dry regions of Africa from Senegal east to Eritrea and south to the north-eastern parts of South Africa. The tree is an important timber species in its native areas; it is used in the manufacture of musical instruments and fine furniture. Populations and genomic resources for genetic biodiversity maintenance in parts of its native range are threatened by overharvesting due to poor or absent conservation planning and by the species' low germination rates.
Rosewood refers to any of a number of richly hued timbers, often brownish with darker veining, but found in many different hues.
Stem rust, also known as cereal rust, black rust, red rust or red dust, is caused by the fungus Puccinia graminis, which causes significant disease in cereal crops. Crop species that are affected by the disease include bread wheat, durum wheat, barley and triticale. These diseases have affected cereal farming throughout history. The annual recurrence of stem rust of wheat in North Indian plains was discovered by Prof. K.C. Mehta. Since the 1950s, wheat strains bred to be resistant to stem rust have become available. Fungicides effective against stem rust are available as well.
Dalbergia sissoo, known commonly as North Indian rosewood or shisham, is a fast-growing, hardy, deciduous rosewood tree native to the Indian subcontinent and southern Iran. D. sissoo is a large, crooked tree with long, leathery leaves and whitish or pink flowers.
Dalbergia baronii is a species of flowering plant in the legume family Fabaceae. It is endemic to Madagascar. It is named after the English missionary and botanist Rev. Richard Baron.
Dalbergia glomerata is a species of legume in the family Fabaceae. It is found only in Mexico.
Dalbergia greveana is a species of legume in the family Fabaceae.
It is found only in Madagascar and is threatened by habitat loss.
Dalbergia monticola is a species of flowering plant in the legume family Fabaceae. It is endemic to Madagascar. It occurs at higher elevation, which gave the species its name.
Dalbergia odorifera, fragrant rosewood or Chinese rosewood, is a species of legume in the family Fabaceae. It is a small or medium-sized tree, 10–15 metres (33–49 ft) tall. It is endemic to China and occurs in Fujian, Hainan, Zhejiang, and Guangdong.
Dalbergia oliveri is a species of legume in the family Fabaceae which grows in tree form to 15 – 30 meters in height. The fruit is a green pod containing one to two seeds which turn brown to black when ripe. It is threatened by habitat loss and over-harvesting for its valuable red "rosewood" timber.
Dalbergia pseudobaronii is a species of flowering plant in the legume family Fabaceae. It is endemic to Madagascar. Its leaves are similar to those of Dalbergia baronii, which gave the species its name.
Francisco Freire Allemão e Cysneiro was a Brazilian botanist who collected in northeast Brazil and along the Rio de Janeiro. His association with the Brazilian National Museum in Rio de Janeiro took place at a time when Brazilian botany was dominated by foreigners.
Jalapão State Park is a state park in the microregion of Jalapão in eastern Tocantins, Brazil. It contains a variety of landscapes including cerrado vegetation, sand dunes and flat-topped plateaus.
Dalbergia retusa is a plant species in the genus Dalbergia. It is known to produce the wood called cocobolo. It is a fair-sized tree, reported to reach 20–25 m in height. This is probably the species contributing most of the wood in the trade. Because of the wood's great beauty and high value, the trees yielding this wood have been heavily exploited and are now rare outside national parks, reserves, and plantations.
The Uropyxidaceae are a family of rust fungi in the order Pucciniales. The family contains 15 genera and 149 species.
Mimema can refer to one of the following:
Dalbergia stevensonii, also called Honduras rosewood, is a Central American tree species in the legume family. It grows in broadleaf evergreen swamp forests in southern Belize and adjacent Guatemala and Mexico. The wood is highly valuable, which has led to population loss from illegal logging.
References
- ↑ Thirumalachar, M. J. "Critical notes on some plant rusts—II*" (PDF). Retrieved 31 January 2019.
- ↑ "Mimema venturae sp. nov. on Dalbergia miscolobium in Brazil". Mycological Research 98(7):786-788. July 1994. Retrieved 31 January 2019.
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