Fucus distichus subsp. evanescens (C.Agardh) H.T.Powell

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Order Fucales
Family Fucaceae
Genus Fucus

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Pictures

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Northern California. 08 Mar 2011. Wendell Wood (ww@oregonwild.org). © Wendell Wood (ww@oregonwild.org).

Northern California. 08 Mar 2011. Wendell Wood (ww@oregonwild.org). © Wendell Wood (ww@oregonwild.org).

Fucus distichus subsp. evanescens (C.Agardh) H.T.Powell Northern California

Publication details
Fucus distichus subsp. evanescens (C.Agardh) H.T.Powell 1957: 426

Original publication: Powell, H.T. (1957). Studies in the genus Fucus L. I. Fucus distichus L. emend. Powell. Journal of the Marine Biological Association of the United Kingdom 36: 407-432.

Type species
The type species (lectotype) of the genus Fucus is Fucus vesiculosus Linnaeus.

Status of name
This name is currently regarded as a taxonomic synonym of Fucus evanescens C.Agardh

Basionym
Fucus evanescens C.Agardh

Type information
Syntype localities: Ad Sachalien, Tilesius ; ad Kamtschatka, Chamisso; unde specimina communicaverunt. (Agardh 1820: 219). Lectotype: Agardh’s (1820, pl. 13) illustration (epitype) (Powell 1957 Notes: Wynne (2010: 40) writes" Fucus evanescens was first described by C.Agardh (1820) based on a pair of syntype collections, one made by Tilesius at Sakhalin while on the 'Nadesda', the voyage of 1803–1806 under the command of Adam Krusenstern, and the second collection made at Kamchatka by Chamisso on the later Romanzof Expedition of 1815–1818 under the command of Otto von Kotzebue (Wynne 2009b). The following year, (C.Agardh 1821, pl. XIII) depicted the Kamchatkan specimen collected by Chamisso. Gardner (1922, pl. I, fig. 2) reproduced C. Agardh’s (1821) pl. XIII. Gardner (1922: 52) stated that Setchell examined the type specimen of F. evanescens, No. 00299 in the Agardh Herbarium in Lund. Rice & Chapman (1985) examined that specimen and concluded that it "bears little resemblance to C.Agardh’s illustration (1821) and therefore is not a suitable lectotype." They concurred with Powell’s (1957) earlier designation of the type of F. evanescens as C.Agardh’s illustration (1821, pl. XIII)."

Origin of species name
Adjective (Latin), arranged in two opposite rows (Stearn 1973).

Synonym(s)
No synonyms are currently included in AlgaeBase.

General environment
This is a marine species.

Detailed distribution with sources
(as Fucus distichus subsp. evanescens (C.Agardh) H.T.Powell)
Arctic: Canada (Arctic) (Lee 1980).

Atlantic Islands: Iceland (Caram & Jónsson 1972).

North America: Alaska (Lindeberg & Lindstrom 2010), Maine (Mathieson et al. 2001), New Hampshire (Mathieson & Hehre 1986).

Asia: Japan (Yoshida 1998, Motomura & Nagasato 2009), Korea (Lee & Kang 2001).

Taxonomic notes
Gabrielsen, Widdowson & Lindstrom (2006: 74, footnote) comment: "There is growing evidence to use the name Fucus distichus subsp. evanescens for the common Fucus in the NE Pacific instead of F. gardneri. Japanese workers have used the name Fucus distichus subsp. evanescens for some time (Yoshida et al. 1990, pp. 283-284). Serrão et al. (1999) have shown that the Atlantic and Pacific populations are genetically very similar. Indeed, there may be doubt that the Pacific populations of Fucus distichus even merit the distinction of a separate subspecies (Jeanine Olsen, pers. com. to SCL). On the other hand, Atlantic and Pacific populations of Fucus distichus appear to have distinctly different ecological proferences, leading Silva (1979, pp. 338) to favour retention of the name F. gardneri." - (4 Aug 2006) - Wendy Guiry

Key references
Lindeberg, M.R. & Lindstrom, S.C. (2010). Field guide to the seaweeds of Alaska. pp. [i-]iii-iv, 1-188, numerous col. photographs. Fairbanks: Alaska Sea Grant College Program.

SAG Cultures
SAG Cultures may be viewed at http://sagdb.uni-goettingen.de/showstrains.php?genus=Fucus&species=distichus

SCCAP Cultures
Cultures from the Scandinavian Culture Collection of Algae at the University of Copenhagen (SCCAP) and Protozoa may be viewed at http://www.sccap.dk/search/algaebase.asp?Genus=Fucus&Species=distichus

NCBI Nucleotide Sequences

Created: 22 December 1998 by M.D. Guiry

Verified by: 28 October 2010 by M.D. Guiry

Accesses: This record has been accessed by users 2096 times since it was created.

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Petrov, J.E. (1965). Fucus distichus L. emend. Powell et Fucus evanescens. Novitates Systematicae Plantarum Non Vascularium 1965: 64-70.

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=14458

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 May 2013.

Algaebase taxon LSID: No taxonomy record found for this level.