| 词条 | Parodia tenuicylindrica |
| 释义 |
| name = Parodia tenuicylindrica{{Italic title}} | image = Notocactus_minimus.jpg | image_caption= | image2 = | image2_caption = | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Core eudicots | ordo = Caryophyllales | familia = Cactaceae | genus = Parodia | species = P. tenuicylindrica | binomial = Parodia tenuicylindrica | binomial_authority = (F.Ritter) D. R. Hunt | synonyms = *Notocactus minimus Frič & Kruizinger ex Bruining 1940
| synonyms_ref = [1] }} Parodia tenuicylindrica is a species of cactus from the genus Parodia. The small green cacti have yellow and red-brown spines, white wool and yellow flowers. They produce yellow-green fruit, and black seeds. P. tenuicylindrica can be found growing individually in Rio Grande do Sul, Brazil. TaxonomyThe species was originally described as Notocactus minimus by Frič & Kruizinger in 1940, based on a description by Bruining. It was later described as Notocactus tenuicylindricus by Friedrich Ritter.[1] Despite objections from hobbyists (among whom Notocactus species were popular) Notocactus (and others) were synonymised under Parodia.[2] In 1997, based on Ritter's earlier description, D. R. Hunt classified the species as Parodia tenuicylindrica.[1] DescriptionP. tenuicylindrica are cylindrical cacti which are green to blue-green.[1] In height, they are {{convert|4|to|8|cm|in}} and are from {{convert|2|to|3|cm|in}} in width.[1] The plants have 13-21 notched and tuberculate ribs.[1] On top of the tubercles, there are areoles with white wool. The species has straight and stout spines; the radial spines, of which there are between ten and fifteen, are pale yellow, and between {{convert|3|and|4|mm|in}} in length, while the 2-4 red-brown central spines are between {{convert|3|and|6|mm|in}} long.[1] The species produces lemon yellow flowers (which are up to {{convert|4.3|cm|in}} long) and greenish-yellow fruits. The seeds are black oblongs with tubercles.[1]DistributionP. tenuicylindrica can be found growing solitarily in Rio Grande do Sul, Brazil.[1] It is currently classified as Endangered (EN) on the IUCN Red List, with major threats reported to be fires, cattle grazing due to trampling, agriculture, and forestry. References1. ^1 2 3 4 5 6 7 8 {{cite book |title= The cactus family|last= Anderson|first= Edward F.|year= 2001|publisher= Timber Press|isbn= 978-0-88192-498-5|page= 555}} {{Taxonbar|from=Q289409}}2. ^{{cite journal |author1=Eggli, U. |author2=Nyffeler, R. |year= 1998|title= Proposal to Conserve the Name Parodia against Frailea (Cactaceae)|journal= Taxon|volume= 47|issue= 2|pages= 475–6|issn= 0040-0262|doi=10.2307/1223792}} 4 : Parodia|Cacti of South America|Endemic flora of Brazil|Flora of Rio Grande do Sul |
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