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Lessonia (alga)

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Lessonia
Lessonia brevifolia
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Gyrista
Subphylum: Ochrophytina
Class: Phaeophyceae
Order: Laminariales
Family: Lessoniaceae
Genus: Lessonia
Bory de Saint-Vincent, 1825
Species

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Lessonia is a genus of large kelp native to the southern Pacific Ocean. It is restricted to the southern hemisphere and is distributed along the coasts of South America, New Zealand, Tasmania, and the Antarctic islands.[1][2] Lessonia is one of two principal genera in kelp forests (the other is Macrocystis).

In Chile, the preservation of Lessonia kelp is an important to help preserve the biodiversity that exists on rocky shores.[3] By studying the harvesting of these wild populations of Lessonia kelp marine biologists are able to analyze the effects of this activity on wildlife.[3] Some species are of economic importance, such as Lessonia nigrescens, which is harvested for alginate.[4]

Taxonomy

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The genus was first described by Jean Baptiste Bory de Saint-Vincent in 1825.[5] The genus name of Lessonia is in honour of René Primevère Lesson (1794–1849), who was a French surgeon, naturalist, ornithologist, and herpetologist.[6] The holotype for this genus is L. flavicans Bory 1825.[7] Recent studies have provided evidence of cryptic speciation within Lessonia including L. nigrescens in Chile[8] and L. variegata in New Zealand.[9]

Distribution and Habitat

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Lessonia species are the only group in the family Lessoniaceae to be found exclusively in the southern hemisphere.[7]

In New Zealand there are at least four species of Lessonia.[2] L. tholiformis is only found on the Chatham Islands.[2] L. adamsiae is only found on the Snares Islands.[2]

Species

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References

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  1. ^ Cho, G. Y.; Klochkova, N. G.; Krupnova, T. N.; Boo, S. M. (2006). "The reclassification of Lessonia laminarioides (Laminariales, Phaeophyceae): Pseudolessonia gen. nov. 1" (PDF). Journal of Phycology. 42 (6): 1289–1299. doi:10.1111/j.1529-8817.2006.00280.x. Archived from the original (PDF) on 2016-03-04. Retrieved 2015-09-07.
  2. ^ a b c d Nelson, W. A. (2013). New Zealand seaweeds : an illustrated guide. Wellington, New Zealand: Te Papa Press. p. 98. ISBN 9780987668813. OCLC 841897290.
  3. ^ a b Orostica, M. H.; Aguilera, M. A.; Donoso, G. A.; Vásquez, J. A.; Broitman, B. R. (2014). "Effect of grazing on distribution and recovery of harvested stands of Lessonia berteroana kelp in northern Chile". Marine Ecology Progress Series. 511: 71–82. doi:10.3354/meps10931. hdl:10533/137292.
  4. ^ Venegas, M.; Tala, F.; Fonck, E.; Vásquez, J. (January 1992). "Sporangial sori on stipes of Lessonia nigrescens Bory (Laminariales, Phaeophyta): A high frequency phenomenon in intertidal populations of northern Chile". Botanica Marina. 35 (6): 573–578. doi:10.1515/botm.1992.35.6.573.
  5. ^ Searles, R. B. (1978-01-01). "The genus Lessonia Bory (Phaeophyta, Laminariales) in Southern Chile and Argentina". British Phycological Journal. 13 (4): 361–381. doi:10.1080/00071617800650421.
  6. ^ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. Retrieved January 27, 2022.
  7. ^ a b M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 November 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 September 2024
  8. ^ Tellier, Florence; Tapia, Javier; Faugeron, Sylvain; Destombe, Christophe; Valero, Myriam (August 2011). "The Lessonia nigrescens species Complex (Laminariales, Phaeophyceae) Shows Strict Parapatry and Complete Reproductive Isolation in a Secondary Contact Zone1: Reproductive Isolation Between Kelp Species". Journal of Phycology. 47 (4): 894–903. doi:10.1111/j.1529-8817.2011.01019.x.
  9. ^ Zuccarello, Giuseppe C.; Martin, Peter; Zuccarello, Giuseppe C.; Martin, Peter (2016-06-03). "Phylogeography of the Lessonia variegata species complex (Phaeophyceae, Laminariales) in New Zealand". Algae. 31 (2): 91–103. doi:10.4490/algae.2016.31.4.15. ISSN 1226-2617.