Chigua (original) (raw)

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Chigua es un género de cicadas de la familia de las zamiáceas, que contiene dos especies endémicas de Colombia.

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dbo:abstract Chigua is a genus of cycads in the family Zamiaceae containing two species, endemic to small areas in northwestern Colombia. Described by botanist Dennis Stevenson in 1990, it is the most recently named genus, and the name refers to a Spanish transliteration of the common name given to cycads by the indigenous peoples of Colombia. The species are found in wet lowland rainforests at 100–200 m altitude. Both species are listed as Critically Endangered by the IUCN Red List. The whole genus is listed under CITES Appendix I / EU Annex A, and CITES prohibits international trade in specimens of these species except when the purpose of the import is not commercial, for instance for scientific research. Plants have a subterranean globose stem. The leaves emerge singly and are straight, oblong, and pinnately compound. The petiole and rachis have spines. leaflets are opposite, lanceolate, and jointed at the base. They have a toothed margin with a distinct midrib and forking parallel side veins. Male cones are cylindrical and covered in short hairs. They are held on long erect stalks and have hexagonal sporophylls. Female cones are broadly cylindrical and hairy, held on very long peduncles two to three times the length of the cone. The female sporophylls are also hexagonal and have distinct bumps. The elliptical seeds are pink or red in color. Chigua is very closely related to the genus Zamia. Chigua restrepoi was collected as early as 1918 by Francis Pennell, but the new species was placed in Zamia. It was not collected again until 1986, and two subsequent collections in 1987 and 1988 became the basis for the establishment of a new genus. Because the genus has only been collected four times, there is little known about its conservation problems. The population sizes for the species are unknown, and nothing is known about the cones or seeds of Chigua bernalii, which is only known from the 1986 collection. Because political conflict in Colombia has made travelling dangerous there, the genus is unlikely to be well known for a while. Cattle grazing, mining, and oil exploration have threatened the habitat in the region. (en) Chigua es un género de cicadas de la familia de las zamiáceas, que contiene dos especies endémicas de Colombia. (es) † Chigua D. W. Stev., 1990 è un genere di cicadi della famiglia delle Zamiaceae. (it) Chigua är ett släkte av kärlväxter. Chigua ingår i familjen Zamiaceae. Kladogram enligt Catalogue of Life: (sv) 哥倫比亞蘇鐵屬(Chigua),又名卡蓋澤米屬,是哥倫比亞西北部特有的一屬蘇鐵。它們是由(Dennis Stevenson)於1990年描述,是蘇鐵目中最近期描述的屬。其下的兩個物種都被列為極危。它們在海拔100-200米的潮濕低地雨林中生長。 (zh)
dbo:wikiPageExternalLink https://web.archive.org/web/20050301022859/http:/plantnet.rbgsyd.gov.au/cgi-bin/taxon.pl%3Fname=Chigua https://web.archive.org/web/20061228144956/http:/www.horticulturalconsultants.com/cycad/chigua.html
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dbo:wikiPageWikiLink dbr:Rachis dbr:Dennis_Stevenson dbc:Zamiaceae dbr:Rainforest dbr:Colombia dbr:Grazing dbr:Critically_Endangered dbr:Peduncle_(botany) dbr:Leaflet_(botany) dbr:Cycad dbc:Endemic_flora_of_Colombia dbr:Leaf dbr:Spanish_language dbr:Mining dbr:IUCN_Red_List dbr:Sporophyll dbr:Zamia dbr:Zamiaceae dbr:Midrib dbr:Oil_exploration dbr:Francis_Pennell dbr:Dennis_William_Stevenson dbr:CITES_Appendix_I dbr:Chigua_bernalii dbr:Chigua_restrepoi
dbp:authority dbr:Dennis_William_Stevenson
dbp:subdivision *Chigua bernalii *Chigua restrepoi (en)
dbp:subdivisionRanks Species (en)
dbp:taxon Chigua (en)
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dcterms:subject dbc:Zamiaceae dbc:Endemic_flora_of_Colombia
gold:hypernym dbr:Cycads
rdf:type yago:WikicatCycads dbo:Cycad yago:Cycad111600372 yago:Gymnosperm111596108 yago:LivingThing100004258 yago:Object100002684 yago:Organism100004475 yago:PhysicalEntity100001930 yago:Plant100017222 yago:Spermatophyte111552386 yago:VascularPlant113083586 yago:Whole100003553 umbel-rc:Cycad
rdfs:comment Chigua es un género de cicadas de la familia de las zamiáceas, que contiene dos especies endémicas de Colombia. (es) † Chigua D. W. Stev., 1990 è un genere di cicadi della famiglia delle Zamiaceae. (it) Chigua är ett släkte av kärlväxter. Chigua ingår i familjen Zamiaceae. Kladogram enligt Catalogue of Life: (sv) 哥倫比亞蘇鐵屬(Chigua),又名卡蓋澤米屬,是哥倫比亞西北部特有的一屬蘇鐵。它們是由(Dennis Stevenson)於1990年描述,是蘇鐵目中最近期描述的屬。其下的兩個物種都被列為極危。它們在海拔100-200米的潮濕低地雨林中生長。 (zh) Chigua is a genus of cycads in the family Zamiaceae containing two species, endemic to small areas in northwestern Colombia. Described by botanist Dennis Stevenson in 1990, it is the most recently named genus, and the name refers to a Spanish transliteration of the common name given to cycads by the indigenous peoples of Colombia. The species are found in wet lowland rainforests at 100–200 m altitude. (en)
rdfs:label Chigua (en) Chigua (cs) Chigua (de) Chigua (es) Chigua (it) Chigua (sv) 哥倫比亞蘇鐵屬 (zh)
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