Desmarestia

Desmarestia
	Desmarestia viridis
Scientific classification
Domain:	Eukaryota
Clade:	Diaphoretickes
Clade:	SAR
Clade:	Stramenopiles
Phylum:	Gyrista
Subphylum:	Ochrophytina
Class:	Phaeophyceae
Order:	Desmarestiales
Family:	Desmarestiaceae
Genus:	Desmarestia; J.V.Lamouroux, 1813[1]
Type species
	Desmarestia aculeata; (L.) J.V.Lamouroux

Desmarestia is a genus of brown algae found worldwide. It is also called acid weed, acidweed,[2][3] oseille de mer, sea sorrel,[4] ウルシグサ (urushi-gusa), stacheltang, mermaid's hair, landlady's wig, or gruagach.[5] However, 'sea sorrel' can also specifically refer to Desmarestia viridis. Members of this genus can be either annual or perennial.[6] Annual members of this genus store sulfuric acid in intracellular vacuoles. When exposed to air they release the acid, thereby destroying themselves and nearby seaweeds in the process. They are found in shallow intertidal zones.[6]

Ingesting sulfuric acid can cause severe digestive problems.[7] but since sulfuric acid tastes extremely sour, members of the genus are unlikely to be eaten in harmful quantities.[7]

The genus was named in honor of Anselme Gaëtan Desmarest.[1]

Species

AlgaeBase lists 32 currently accepted species within the genus Desmarestia, not including variations and subspecies.[6]

Desmarestia aculeata (L.) J.V.Lamouroux - Type specimen for the genus
Desmarestia anceps (Montagne)
Desmarestia antarctica (R.L.Moe & P.C.Silva)
Desmarestia chordalis (J.D.Hooker & Harvey)
Desmarestia confervoides (Bory de Saint-Vincent) M.E.Ramírez & A.F.Peters
Desmarestia distans (C.Agardh) J.Agardh
Desmarestia dudresnayi J.V.Lamouroux ex Léman
Desmarestia farcta Setchell & Gardner
Desmarestia filamentosa E.Y.Dawson
Desmarestia firma (C.Agardh) Skottsberg
Desmarestia foliacea V.A.Pease
Desmarestia gayana Montagne
Desmarestia herbacea (Turner) J.V.Lamouroux
Desmarestia inanis Postels & Ruprecht
Desmarestia intermedia Postels & Ruprecht
Desmarestia kurilensis Yamada
Desmarestia latifrons (Ruprecht) Kützing
Desmarestia latissima Setchell & Gardner
Desmarestia ligulata (Stackhouse) J.V.Lamouroux
Desmarestia menziesii J.Agardh
Desmarestia muelleri M.E.Ramírez & A.F.Peters
Desmarestia munda Setchell & N.L.Gardner
Desmarestia patagonica Asensi
Desmarestia peruviana Montagne
Desmarestia pinnatinervia Montagne
Desmarestia pteridoides Reinsch
Desmarestia rossii J.D.Hooker & Harvey
Desmarestia sivertsenii Baardseth
Desmarestia tabacoides Okamura
Desmarestia tortuosa A.R.O. Chapman
Desmarestia tropica W.R.Taylor - tropical acidweed
Desmarestia viridis (O.F.Müller) J.V.Lamouroux - stringy acid kelp, green acid kelp, Desmarest's green weed, or sea sorrel

Gallery

Artistic rendering of Desmarestia ligulata
Artistic rendering of Desmarestia kurilensis
Artistic rendering of Desmarestia latifrons

References

Lamouroux, Jean Vincent Félix (1813). "Essai sur les genres de la famille des thalassiophytes non articulées" (PDF). Annales du Muséum d'Histoire Naturelle, Paris (in French). 20: 43–45. OCLC 2099267. Retrieved 11 December 2017.
Watson, Jane (30 April 2014). "Spatial and temporal variation in kelp forest composition off the NW coast of Vancouver Island, British Columbia". Salish Sea Ecosystem Conference. Retrieved 12 December 2017. In general, annual species such as Acid Weed (Desmarestia spp,) were highly variable in abundance
Warneke, Alex (5 December 2014). "These are a few of my favorite species: Desmarestia". Deep Sea News. Retrieved 12 December 2017. Rightly named "Acid Weed," the internal pH of Desmarestia has been estimated as low as 0.6 pH.
Dickinson, Carola I. (1963). British Seaweeds. Kew series. Vol. 3. London: Eyre & Spottiswoode. p. 76. OCLC 1437555. Retrieved 13 December 2017.
"Desmarestia". SuriaLink SeaPlants Handbook. Archived from the original on 5 January 2020. Retrieved 13 December 2017.
M.D. Guiry. "Desmarestia J.V.Lamouroux". AlgaeBase. Retrieved November 5, 2013.
Turner, Nancy J.; von Aderkas, Patrick (2009). "3: Poisonous Plants of Wild Areas". The North American Guide to Common Poisonous Plants and Mushrooms. Portland, OR: Timber Press. p. 116. ISBN 9780881929294. OCLC 747112294.

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[Lamouroux-1] Lamouroux, Jean Vincent Félix (1813). "Essai sur les genres de la famille des thalassiophytes non articulées" (PDF). Annales du Muséum d'Histoire Naturelle, Paris (in French). 20: 43–45. OCLC 2099267. Retrieved 11 December 2017.

[Watson-2] Watson, Jane (30 April 2014). "Spatial and temporal variation in kelp forest composition off the NW coast of Vancouver Island, British Columbia". Salish Sea Ecosystem Conference. Retrieved 12 December 2017. In general, annual species such as Acid Weed (Desmarestia spp,) were highly variable in abundance

[Warneke-3] Warneke, Alex (5 December 2014). "These are a few of my favorite species: Desmarestia". Deep Sea News. Retrieved 12 December 2017. Rightly named "Acid Weed," the internal pH of Desmarestia has been estimated as low as 0.6 pH.

[Dickinson-4] Dickinson, Carola I. (1963). British Seaweeds. Kew series. Vol. 3. London: Eyre & Spottiswoode. p. 76. OCLC 1437555. Retrieved 13 December 2017.

[SuriaLink-5] "Desmarestia". SuriaLink SeaPlants Handbook. Archived from the original on 5 January 2020. Retrieved 13 December 2017.

[W1-6] M.D. Guiry. "Desmarestia J.V.Lamouroux". AlgaeBase. Retrieved November 5, 2013.

[Turner-7] Turner, Nancy J.; von Aderkas, Patrick (2009). "3: Poisonous Plants of Wild Areas". The North American Guide to Common Poisonous Plants and Mushrooms. Portland, OR: Timber Press. p. 116. ISBN 9780881929294. OCLC 747112294.