| Cystoseira | |
|---|---|
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| Cystoseira foeniculacea, the type species of Cystoseira | |
Scientific classification 
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| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Stramenopiles |
| Phylum: | Gyrista |
| Subphylum: | Ochrophytina |
| Class: | Phaeophyceae |
| Order: | Fucales |
| Family: | Sargassaceae |
| Genus: | Cystoseira (L.) C.Agardh, 1820 [1] |
| Species | |
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See text | |
Cystoseira is a genusofbrown algae in the order Fucales.
As presently defined, Cystoseira comprises fucoids characterised by antherozoids without stigmata, few antheridial branches, trichothallic hairs in conceptacles, large ovoid oospheres, and eggs that remain attached to the surface of the receptacles through mucilaginous stalks until after fertilization.[2]
Cystoseira as presently defined occurs only in the Mediterranean and Northeast Atlantic. Species from the Indian and Pacific oceans are presently included in different genera.[2]
Cystoseira are important habitat-forming species in coastal waters of the Mediterranean and Northeast Atlantic. They require good water quality, and can be used as bioindicators for pollution levels.[3]
Cystoseira was recenty found to include multiple unrelated lineages.[4][2][5] As a result, most species were moved to the genera Stephanocystis, Polycladia, Sirophysalis, Gongolaria and Ericaria.[2][5][6] As of January 2024, AlgaeBase lists the following non-fossil species as accepted:[7]
Many of these species are poorly studied and require validation.[5]
| Cystoseira |
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Authority control databases: National  |
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