Cystoseira Funkii

''Cystoseira'' is a genus of brown algae in the order Fucales.

Description

''Cystoseira'' is characterized by highly differentiated basal and apical regions and the presence of catenate pneumatocysts (air-vesicles). In ''Cystoseira'' old plants have an elongated main axis, and in time the primary laterals become proportionally elongated. Their lower parts are strongly flattened into ‘foliar expansions’ or basal leaves. Fertile regions which bear conceptacles are known as receptacles. These are normally found at the tips of the branches. Their basal and apical regions are highly differentiated. They have catenate pnuematocysts (air vesicles). The aerocyst or air vesicles keep the organism erect, by causing it to float in strong currents.

Distribution

''Cystoseira'' is one of the most widely distributed genera of the Fucales order and provides an essential habitat for many epiphytes, invertebrates, and fish. ''Cystoseira'' is found mostly in temperate regions of the Northern Hemisphere, such as the Mediterranean, Indian, and Pacific Oceans.

Bioindicators

''Cystoseira'' depend on good water quality, and can be used for bioindication. This was discovered in a study of ''Cystoseira'' species undertaken on Menorca.

Species

The following species are listed in the World Register of Marine Species:

*''Cystoseira abies-marina'' (S.G.Gmelin) C.Agardh, 1820
*''Cystoseira algeriensis'' Feldmann, 1945
*''Cystoseira amentacea'' (C.Agardh) Bory de Saint-Vincent, 1832
*''Cystoseira baccata'' (S.G.Gmelin) P.C.Silva, 1952
*'' Cystoseira barbata'' (Stackhouse) C.Agardh, 1820
*''Cystoseira barbatula'' Kützing
*''Cystoseira brachycarpa'' J.Agardh, 1896
*'' Cystoseira compressa'' (Esper) Gerloff & Nizamuddin, 1975
*'' Cystoseira corniculata'' (Turner) Zanardini, 1841
*''Cystoseira crassipes'' (Mertens ex Turner) C.Agardh, 1821
*'' Cystoseira crinita'' Duby, 1830
*'' Cystoseira crinitophylla'' Ercegovic, 1952
*'' Cystoseira dubia'' Valiante
*''Cystoseira elegans'' Sauvageau, 1912
*'' Cystoseira fimbriata'' Bory de Saint-Vincent, 1832
*''Cystoseira foeniculacea'' (Linnaeus) Greville, 1830
*'' Cystoseira funkii'' Schiffner ex Gerloff & Nizamuddin, 1976
*''Cystoseira geminata'' C.Agardh, 1824
*''Cystoseira hakodatensis'' (Yendo) Fensholt, 1952
*''Cystoseira helvetica'' Heer, 1877
*'' Cystoseira humilis'' Schousboe ex Kützing, 1860
*''Cystoseira hyblaea'' G.Giaccone, 1985
*''Cystoseira indica'' (Thivy & Doshi) Mairh, 1968
*''Cystoseira jabukae'' Ercegovic, 1952
*''Cystoseira mauritanica'' Sauvageau, 1911
*''Cystoseira mediterranea'' Sauvageau, 1912
*'' Cystoseira montagnei'' J.Agardh, 1842
*''Cystoseira neglecta'' Setchell & N.L.Gardner, 1917
*''Cystoseira nodicaulis'' (Withering) M.Roberts, 1967
*''Cystoseira osmundacea'' (Turner) C.Agardh, 1820
*''Cystoseira pelagosae'' Ercegovic, 1952
*''Cystoseira planiramea'' Schiffner
*''Cystoseira platyclada'' Sauvageau, 1912
*''Cystoseira rayssiae'' E.Ramon, 2000
*''Cystoseira sauvageauana'' G.Hamel, 1939
*''Cystoseira sauvageaueana'' G.Hamel, 1939
*''Cystoseira schiffneri'' G.Hamel, 1939
*''Cystoseira sedoides'' (Desfontaines) C.Agardh, 1820
*''Cystoseira selaginioides''
*''Cystoseira setchellii'' N.L.Gardner, 1913
*''Cystoseira sonderi'' (Kützing) Piccone
*''Cystoseira spinosa'' Sauvageau, 1912
*''Cystoseira squarrosa'' De Notaris, 1841
*''Cystoseira stricta''
*''Cystoseira susanensis'' Nizamuddin, 1985
*''Cystoseira tamariscifolia'' (Hudson) Papenfuss, 1950
*''Cystoseira trinodis'' (Forsskål) C.Agardh, 1820
*''Cystoseira usneoides'' (Linnaeus) M.Roberts, 1968
*''Cystoseira wildpretii'' Nizamuddin, 1995
*''Cystoseira wildprettii'' Nizamuddin
*''Cystoseira zosteroides'' C.Agardh, 1820

References

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{{Taxonbar, from=Q2586432

Fucales
Fucales genera
Taxa named by Jacob Georg Agardh