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Uvariopsis Vanderystii & Ghesq. in 1933.
''Uvariopsis vanderystii'' is a species of plant in the Annonaceae family. It is found in Cameroon, the Democratic Republic of the Congo, and Gabon. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss. Description '' U. vanderystii'' is a monoecious shrub, with strictly cauliflorous inflorescences. Its petals are joined at the base, with flowers having distinct pedicels. Taxonomy '' U. vanderystii'' was first described by Robyns Frans Hubert Edouard Arthur Walter Robyns (1901-1986), known as Walter Robyns, was a Belgian botanist. His son, André Robyns (1935–2003), was also a botanist. Biography He received his doctorate in sciences at the University of Louvain. References Annonaceae[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frans Hubert Edouard Arthur Walter Robyns
Frans Hubert Edouard Arthur Walter Robyns (1901-1986), known as Walter Robyns, was a Belgian botanist. His son, André Robyns (1935–2003), was also a botanist. Biography He received his doctorate in sciences at the University of Louvain.BHL Taxonomic literature : a selective guide to botanical publications Robyns spent two long stays at the , travelled in central Africa and performed taxonomic work on many groups of tropical African plants, amongst others: , |
Jean Hector Paul Auguste Ghesquière
Jean Hector Paul Auguste Ghesquière (born 1888) was a Belgian botanist. Work He collected plant specimens in Angola, the Democratic Republic of the Congo, Niger, São Tomé and Príncipe, and Uganda. He deposited many of his specimens in the herbarium at the Botanic Garden Meise (then called the National Botanic Garden of Belgium). Legacy He is the authority for at least 59 taxa In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ... including: The following species have been named in his honor: ''Karschiogomphus ghesquierei'' Schouteden, 1934 (Syn. of ''Neurogomphus martininus'' Lacroix, 1921) ''Chlorocypha ghesquierei'' Fraser, 1959 References 20th-century Belgian botanists 1888 births 1982 deaths {{Botanist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uvariopsis
''Uvariopsis'' is a genus of flowering plants in the family Annonaceae. The genus is unique to Africa, and consists of about 18 species, all of which are either ramiflorous, cauliflorous or both. The type species for the genus is '' Uvariopsis zenkeri'' Engl. Taxonomy The genus was first described in 1899 by Engler. Species * ''Uvariopsis bakeriana'' (Hutch. & Dalziel) Robyns & Ghesq. * '' Uvariopsis bisexualis'' Verdc. * ''Uvariopsis citrata'' Couvreur & Niangadouma * '' Uvariopsis congensis'' Robyns & Ghesq. * '' Uvariopsis congolana'' (De Wild.) R.E. Fr. * ''Uvariopsis dicaprio'' Cheek & Gosline * ''Uvariopsis dioica'' (Diels) Robyns & Ghesq. * '' Uvariopsis globiflora'' Keay * ''Uvariopsis guineensis'' Keay * '' Uvariopsis korupensis'' * ''Uvariopsis letestui'' Pellegr. * ''Uvariopsis noldeae'' Exell & Mendonça * ''Uvariopsis pedunculosa'' (Diels) Robyns & Ghesq. * ''Uvariopsis sessiliflora'' (Mildbr. & Diels) Robyns & Ghesq. * ''Uvariopsis solheidii'' (De Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annonaceae
The Annonaceae are a Family (biology), family of flowering plants consisting of trees, shrubs, or rarely lianas commonly known as the custard apple family or soursop family. With 108 accepted genera and about 2400 known species, it is the largest family in the Magnoliales. Several genera produce edible fruit, most notably ''Annona'', ''Anonidium'', ''Asimina'', ''Rollinia'', and ''Uvaria''. Its type genus is ''Annona''. The family is concentrated in the tropics, with few species found in temperate regions. About 900 species are Neotropical, 450 are Afrotropical, and the remaining are Indomalayan. Description The species are mostly tropical, some are mid-latitude, deciduous or evergreen trees and shrubs, with some lianas, with aromatic bark, leaves, and flowers. ; Stems, stalks and leaves: Bark is fibrous and aromatic. Pith septate (fine tangential bands divided by partitions) to diaphragmed (divided by thin partitions with openings in them). Branching distichous (arranged in two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cameroon
Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the Central African Republic to the east; and Equatorial Guinea, Gabon and the Republic of the Congo to the south. Its coastline lies on the Bight of Biafra, part of the Gulf of Guinea and the Atlantic Ocean. Due to its strategic position at the crossroads between West Africa and Central Africa, it has been categorized as being in both camps. Its nearly 27 million people speak 250 native languages. Early inhabitants of the territory included the Sao civilisation around Lake Chad, and the Baka hunter-gatherers in the southeastern rainforest. Portuguese explorers reached the coast in the 15th century and named the area ''Rio dos Camarões'' (''Shrimp River''), which became ''Cameroon'' in English. Fulani soldiers founded the Adamawa Emirate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Democratic Republic Of The Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in Central Africa. It is bordered to the northwest by the Republic of the Congo, to the north by the Central African Republic, to the northeast by South Sudan, to the east by Uganda, Rwanda, and Burundi, and by Tanzania (across Lake Tanganyika), to the south and southeast by Zambia, to the southwest by Angola, and to the west by the South Atlantic Ocean and the Cabinda exclave of Angola. By area, it is the second-largest country in Africa and the 11th-largest in the world. With a population of around 108 million, the Democratic Republic of the Congo is the most populous officially Francophone country in the world. The national capital and largest city is Kinshasa, which is also the nation's economic center. Centered on the Cong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabon
Gabon (; ; snq, Ngabu), officially the Gabonese Republic (french: République gabonaise), is a country on the west coast of Central Africa. Located on the equator, it is bordered by Equatorial Guinea to the northwest, Cameroon to the north, the Republic of the Congo on the east and south, and the Gulf of Guinea to the west. It has an area of nearly and its population is estimated at million people. There are coastal plains, mountains (the Cristal Mountains and the Chaillu Massif in the centre), and a savanna in the east. Since its independence from France in 1960, the sovereign state of Gabon has had three presidents. In the 1990s, it introduced a multi-party system and a democratic constitution that aimed for a more transparent electoral process and reformed some governmental institutions. With petroleum and foreign private investment, it has the fourth highest HDI in the region (after Mauritius, Seychelles and South Africa) and the fifth highest GDP per capita (PPP) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest
A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' (FRA 2020) found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries (Brazil, Canada, China, Russia, and the United States). The largest share of forests (45 percent) are in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cauliflory
Cauliflory is a botanical term referring to plants that flower and fruit from their main stems or woody trunks, rather than from new growth and shoots. This can allow trees to be pollinated or have their seeds dispersed by animals that climb on trunks and sturdy limbs to feed on the nectar and fruits. Plants may instead have fruit which drop from the canopy and ripen only after they reach the ground, an alternative "strategy" to cauliflory. (Note that the concept of cauliflory includes that of ramiflory.) Families, genera and (some) species (list incomplete) *Moraceae **''Ficus'': '' F. racemosa'' (cluster fig), '' F. sansibarica'' (knobby fig), '' F. sur'' (Cape fig), '' F. sycomorus'' (sycamore fig) **''Artocarpus'': '' A. heterophyllus'' (jackfruit), '' A. integer'' (chempedak), '' A. altilis'' (breadfruit) *Myrtaceae **''Syzygium'': '' S. moorei'', '' S. cormiflorum'' **''Plinia'': '' P. cauliflora'' *Malvaceae **''Theobroma'': '' T. cacao'' (cacao), '' T. grandiflorum'' (c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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