# Arachnitis

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Not to be confused with [Arachnites](/source/Arachnites).

***Arachnitis uniflora***, the sole species in the genus ***Arachnitis***, is a non-[photosynthetic](/source/Photosynthetic) [plant](/source/Plant) species in the family [Corsiaceae](/source/Corsiaceae).[1] This species is [mycoheterotrophic](/source/Myco-heterotrophy), and it obtains carbon from mycorrhizal fungi of the family [Glomeraceae](/source/Glomeraceae) which are associated to its roots.[2][1]

*A. uniflora* is native to southern [South America](/source/South_America) ([Bolivia](/source/Bolivia), [Chile](/source/Chile), [Argentina](/source/Argentina)) and the [Falkland Islands](/source/Falkland_Islands).[3]

## Description

Although the fungi present in the roots of this species are in some ways the same kind of [arbuscular mycorrhizae](/source/Arbuscular_mycorrhizae) which are found in the roots of many plants, the details of their association with the plant roots differ in key ways (such as the absence of arbuscules).[1]

## References

1. Laura S. Domínguez; Lewis Melville; Alicia Sérsic; Antonella Faccio; R. Larry Peterson (2009), "The mycoheterotroph *Arachnitis uniflora* has a unique association with arbuscular mycorrhizal fungi", *Botany*. **87** (12): 1198–1208, [doi:10.1139/B09-081](https://doi.org/10.1139/B09-081)

1. Renny, Mauricio; Acosta, M. Cristina; Cofré, Noelia; Domínguez, Laura S.; Bidartondo, Martin I.; Sérsic, Alicia N. (2017-04-07). ["Genetic diversity patterns of arbuscular mycorrhizal fungi associated with the mycoheterotroph Arachnitis uniflora Phil. (Corsiaceae)"](https://doi.org/10.1093/aob/mcx023). *Annals of Botany*. **119** (8): 1279–1294. [doi:10.1093/aob/mcx023](https://doi.org/10.1093/aob/mcx023). [ISSN 0305-7364](https://www.worldcat.org/issn/0305-7364). [PMC 5604589](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5604589). [PMID 28398457](https://pubmed.ncbi.nlm.nih.gov/28398457)

1. [Kew World Checklist of Selected Plant Families](http://apps.kew.org/wcsp/namedetail.do?name_id=300034)

## Bibliography

- Ibisch, Pierre L.; Neinhuis, Christoph; Rojas, N Patricia (29 November 1996). "On the Biology, Biogeography, and Taxonomy of Arachnitis Phil. nom. cons. (Corsiaceae) in Respect to a New Record from Bolivia". *Willdenowia*. **26** (1/2): 321–332. [doi:10.3372/wi.26.2616](https://doi.org/10.3372/wi.26.2616). [JSTOR 3997251](https://www.jstor.org/stable/3997251). [S2CID 4002791](https://api.semanticscholar.org/CorpusID:4002791)

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