Cyperus Graciliculmis
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Cyperus Graciliculmis
''Cyperus graciliculmis'' is a species of sedge that is endemic to an area in Rwanda Rwanda (; rw, u Rwanda ), officially the Republic of Rwanda, is a landlocked country in the Great Rift Valley of Central Africa, where the African Great Lakes region and Southeast Africa converge. Located a few degrees south of the Equator .... The species was first formally described by the botanist Kåre Arnstein Lye in 1986. See also * List of ''Cyperus'' species References {{Taxonbar, from=Q15532436 graciliculmis Plants described in 1986 Flora of Rwanda Taxa named by Kåre Arnstein Lye ...
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Cyperus
''Cyperus'' is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions. Description They are annual or perennial plants, mostly aquatic and growing in still or slow-moving water up to deep. The species vary greatly in size, with small species only tall, while others can reach in height. Common names include ''papyrus sedges'', ''flatsedges'', ''nutsedges'', ''umbrella-sedges'' and ''galingales''. The stems are circular in cross-section in some, triangular in others, usually leafless for most of their length, with the slender grass-like leaves at the base of the plant, and in a whorl at the apex of the flowering stems. The flowers are greenish and wind-pollinated; they are produced in clusters among the apical leaves. The seed is a small nutlet. Ecology ''Cyperus'' species are eaten by the larvae of some Lepidoptera species, including ''Chedra microstigma''. They also provide an alternative food source for ...
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Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ...
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Rwanda
Rwanda (; rw, u Rwanda ), officially the Republic of Rwanda, is a landlocked country in the Great Rift Valley of Central Africa, where the African Great Lakes region and Southeast Africa converge. Located a few degrees south of the Equator, Rwanda is bordered by Uganda, Tanzania, Burundi, and the Democratic Republic of the Congo. It is highly elevated, giving it the soubriquet "land of a thousand hills", with its geography dominated by mountains in the west and savanna to the southeast, with numerous lakes throughout the country. The climate is temperate to subtropical, with two rainy seasons and two dry seasons each year. Rwanda has a population of over 12.6 million living on of land, and is the most densely populated mainland African country; among countries larger than 10,000 km2, it is the fifth most densely populated country in the world. One million people live in the Capital city, capital and largest city Kigali. Hunter-gatherers settled the territory in the St ...
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Kåre Arnstein Lye
Kåre Arnstein Lye (9 March 1940 – 24 March 2021) was a Norwegian botanist and field biologist. This botanist is denoted by the author abbreviation when citing a botanical name. Lye was born in Bryne in south western Norway and studied at the University of Oslo. In 1968 he was employed as a scientific assistant at the former Agricultural University of Norway in the Department of Botany. In 1973 he was appointed to the Norwegian College of Agriculture (later the Norwegian University of Life Sciences) and became a professor in 1994 and remained there until his retirement in 2010. He was regarded as an authority on sedges and revised flora releases in tropical countries, often in Africa. Most of his published works were for the families ''Cyperaceae'', ''Rosaceae'', ''Asteraceae'', ''Juncaceae'' and ''Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, ...
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List Of Cyperus Species
The genus ''Cyperus'' contains the following species recognised by ''The Plant List'' in 2015. Other species have since been considered synonyms, been newly described, or seem to have been omitted from the website database at the time. See references. A *'' Cyperus absconditicoronatus'' Bauters, Reynders & Goetgh. *'' Cyperus acholiensis'' Larridon *'' Cyperus acuminatus'' Torr. & Hook. *'' Cyperus afroalpinus'' Lye *'' Cyperus afrodunensis'' Lye *'' Cyperus afromontanus'' Lye *'' Cyperus afrovaricus'' Lye *'' Cyperus aggregatus'' (Willd.) Endl. *'' Cyperus ajax'' C.B.Clarke *'' Cyperus alaticaulis'' R.Booth, D.J.Moore & Hodgon *'' Cyperus albopilosus'' (C.B.Clarke) Kük. *'' Cyperus albopurpureus'' Cherm. *'' Cyperus albosanguineus'' Kük. *'' Cyperus albostriatus'' Schrad. *'' Cyperus albus'' J.Presl & C.Presl *'' Cyperus algeriensis'' Väre & Kukkonen *'' Cyperus almensis'' D.A.Simpson *'' Cyperus alopecuroides'' Rottb. *'' Cyperus alterniflorus'' R.Br. *''Cyperus alternifol ...
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Plants Described In 1986
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 los ...
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Flora Of Rwanda
The wildlife of Rwanda comprising its flora and fauna, in prehistoric times, consisted of montane forest in one third the territory of present-day Rwanda. However, natural vegetation is now mostly restricted to the three National Parks and four small forest reserves, with terraced agriculture dominating the rest of the country. Geography Rwanda is a landlocked country in Central Africa, bordered by Burundi, Democratic Republic of the Congo, Tanzania, and Uganda. It measures in size, of which is land and is water. Its highest point is Volcan Karisimbi at , while it lowest point is the Rusizi River at . Rwanda's geography is dominated by savanna grassland with approximately 46 percent considered arable land and 9.5 percent dedicated to permanent crops. Grassy uplands and hills are predominant characteristics of the terrain, while the country's relief is described as mountainous, its altitude demonstrating a decline from the west towards the east. A unique feature in the geogr ...
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