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Peltophorum Africanum
__NOTOC__ ''Peltophorum africanum'', the weeping wattle, is a semi-deciduous to deciduous flowering tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ... growing to about 15 meters tall. It is native to Africa south of the equator. Their yellow flowers bloom on the ends of branches in upright, showy sprays. During spring time it may happen that water drips from the tree's branches, a phenomenon that is caused by the spittlebug '' Ptyelus grossus''. The immature stages of these spittlebugs congregate on the young shoots and derive their nourishment by sucking the tree's sap. While doing so they secrete pure water, which is the cause of the "weeping" effect. Common names Other common names include Rhodesian blackwood, African blackwood, African wattle, African false wattle, Rhodesi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Wilhelm Sonder
Otto Wilhelm Sonder (18 June 1812, Bad Oldesloe – 21 November 1881) was a German botanist and pharmacist. Life A native of Holstein, Sonder studied at Kiel University, where he sat pharmaceutical examinations in 1835, before becoming the proprietor of a pharmacy in Hamburg from 1841 to 1878. In 1846 he received an honorary doctorate from the University of Königsberg and was elected a member of the German National Academy of Sciences Leopoldina for his contribution to the field of botany. Herbarium From a young age, Sonder showed considerable interest and skill in Botany. He often embarked on botanical excursions in his local area early in the morning before heading to work at the pharmacy. Throughout his life, Sonder met and conversed with many eminent botanists of the era. He amassed an extensive botanical collection that contained hundreds of thousands of specimens representing all major plant groups and spanning all parts of the globe. The collection is particularly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deciduous
In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit. The antonym of ''deciduous'' in the botanical sense is evergreen. Generally, the term "deciduous" means "the dropping of a part that is no longer needed or useful" and the "falling away after its purpose is finished". In plants, it is the result of natural processes. "Deciduous" has a similar meaning when referring to animal parts, such as deciduous antlers in deer, deciduous teeth (baby teeth) in some mammals (including humans); or decidua, the uterine lining that sheds off after birth. Botany In botany and horticulture, deciduous plants, including trees, shrubs and herbaceous perennials, are those that lose all of their leaves for part of the year. This process is called ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptyelus Grossus
''Ptyelus grossus'' is an Auchenorrhynchan spittlebug in the family Aphrophoridae. Occurring from Southern Africa through to West Africa, the species is gregarious in its larval and nymph stages, feeding on a variety of plants, and producing protective nests of acrid foam from the plant's sap. Excreted in large quantities, the foam drips incessantly causing wet patches on the soil below. Adults have slate-grey wings, each wing with two white and yellow patches near the outer margin. The head is white, rounded with large dark eyes and small black and yellow marks on the forehead. Favoured trees are '' Tipuana'', '' Peltophorum'' and ''Lonchocarpus'', although its catholic diet includes species of ''Grevillea'', '' Rhus'', '' Acacia'', ''Vangueria'' and even ''Eucalyptus ''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including '' Corym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Resources Of Tropical Africa
__NOTOC__ Plant Resources of Tropical Africa, known by its acronym PROTA, is a retired NGO and interdisciplinary documentation programme active between 2000 and 2013. PROTA produced a large database and various publications about Africa's useful plants. Purpose PROTA was concerned with increasing accessibility to traditional knowledge and scientific information about many types of African plants including: dyes & tannins, fibers, medicinal plants, stimulants, tropical timbers, vegetables, tubers (carbohydrates), oil seeds, ornamental plants, forage plants, and cereals. PROTA supported the sustainable use of these useful plants to preserve culture, reduce poverty and hunger, and respond to climate change. To this end, PROTA's overall goal was synthesize diverse, published information for approximately 8,000 plants used in tropical Africa, then make it widely accessible through an online database and various book publications. In other words, PROTA was dedicated to making the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peltophorum
''Peltophorum'' is a genus of 5–15 species of flowering plants in the family Fabaceae, subfamily Caesalpinioideae. The genus is native to certain tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ... regions across the world. The species are medium-sized to large trees growing up to 15–25 m tall, rarely 50 m.Germplasm Resources Information Network''Peltophorum''Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening''. Macmillan . Etymology ''Peltophorum'' literally means "shield-bearing": from Greek (, " ''peltē'' shield"), with the interfix , '' -phor(os)'' ("bearing") and New Latin suffix . It is a reference to the peltate (shield-like) form of the plant's stigma. Species The following species are accepted by '' The Plant List'': *'' Peltophorum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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