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Description: |
This alga is 10-50 cm in length (variable according to ecology); it is thorny, yellowish and does not have a real basal disk. It has a dark and cylindrical axle. Original publication: Agardh, C.A. (1820 '1821'). Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis. Volumen primum. Pars prima. pp. [i-iv], [1]-168. Lundae [Lund]: ex officina Berlingiana.
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At the base a branching, gnarled stem with teeth-like appendages. Upper thallus tufted, forking or lateral branching at more or less the same length, single branches thin, covered with scattered dark dots, and conspicuous bilateral saw-teeth-like; conceptacles as wart-like swellings in the upper parts of the thallus. Without swim bladders (Braune & Guiry, 2011). |
| Biogeography |
E Atlantic (Azores, Madeira, Canary Is, Cap Verde Is); Mediterranean (Spain, Sardinia, Libya, Italy). |
| References |
Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, 266 pls. Ruggell: A.R.G. Gantner Verlag. Gómez Garreta, A., Barcelo i Martí, M.C., Ribera Siguán, M.A. & Rull Lluch, J. (2001). Cystoseira C. Agardh. In: Flora Phycologica Iberica Vol. 1 Fucales. (Gómez Garreta, A. Eds) Vol.1, pp. 99-166. Murcia: Universidad de Murcia. |
| Habitat: |
It is mostly present in the Macronesian islands. Widely spread out in the infralittoral zone, in places subject to wave action. |
| Type information: |
Basionym: Fucus abies-marinus S.G.Gmelin Syntype localities: “Mare mediterraneum et oceanus, Angliam” (Gmelin 1768: 83). |
