- Fucales
Taxobox
name = Fucales
image_caption = "Ascophyllum nodosum"
domain =Eukaryota
regnum =Chromalveolata
phylum =Heterokont ophyta
classis = Phaeophyceae
ordo = Fucales
ordo_authority =Kylin
subdivision_ranks = Families
subdivision =Bifurcariopsidaceae
Cystoseiraceae Durvillaeaceae
Fucaceae Himanthaliaceae
Hormosiraceae Notheiaceae Sargassaceae Seirococcaceae Xiphophoraceae
Fucales is an order in the
Phylum Phaeophyta orBrown algae . Members of this order are fucoids. The list of families (see box at right) in "Fucales", as well as additional taxonomic information on algae, is publicly accessible at Algaebase. [http://www.algaebase.org] Guiry, M.D. and Guiry, G.M. 2006. AlgaeBase version 4.2. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 07 December 2006]The Class Phaeophyceae is included within the Division Heterokontophyta.Hardy, .G. and Guiry, M.D. 2006. "A Check-list and Atlas of the Seaweeds of Britain and Ireland." 2006. The British Phycologcal Society. ISBN 3-906166-35-X] This name comes from the Greek word "phaios" meaning "brown" and "phyton" meaning plant.Huisman, J.M. 2000. "Marine Plants of Australia." University of Western Australia Press, Australia. ISBN 1 876268 33 6] They include some of the largest plants in the sea, some however are small and fine in structure.
Classification
The Class Phaeophyceae is devided into the following orders (Hoek, 1995). Hoek, C.van den, Mann, D.G. and Jahns, H.M. 1995. " [http://books.google.co.uk/books?id=xuUoiFesSHMC&printsec=frontcover Algae] ". Cambridge University Press. ISBN 0 521 30419 9]
*Ectocarpales
*Sphacelariales
*Syringodermatales
*Dictyotales
*Scytosiphonales
*Cutleriales
*Dictyosiphonales
*Chordariales
*Sporochnales
*Desmarestiales
*
Laminariales *Fucales **"
Fucus "*Durvillaeales
*Ascoseirales
The Fucales include some of the more common
littoral seaweed s and the members of the order have the typical seaweed construction: aholdfast , stipe and lamina. The lamina is often much branched and may include gas filled bladders. Growth is by division of the apical cells.They are oogamous where there is fusion between the small male gamete and the large female gamete.
As their general name suggests their
pigment ation is brown. All species are multicellular. Full details of the characteristics are complex and consist of details of the flagella, shape of the chloroplasts, structure of the cell walls and details of the life-cycle.Numbers
There are about 1,500 - 2,000 species of brown seaweeds world-wide.Thomas,D.N. 2002. "Seaweeds." The Natural History Museum, London. ISBN 0565 091751]
References
Further reading
*Fletcher, R.L.1987. "Seaweeds of the British Isles." Volume 3 , Part 1. British Museum (Natural History), London. ISBN 0 565 00992 3
External links
http://www.algaebase.org/taxonomy_detail.lasso?taxonid=4360&-session=abv3:51909EC3079e719088yIl3148D27
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