Fucus distichus subsp. evanescens (C. ) H.T.Powell
Fucus distichus subsp. evanescens (C.Agardh) H.T.Powell Northern California
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.
Status of name
This name is currently regarded as a taxonomic synonym of Fucus evanescens C.Agardh
Fucus evanescens C.Agardh
Syntype localities: Ad Sachalien, Tilesius ; ad Kamtschatka, Chamisso; unde specimina communicaverunt. (Agardh 1820: 219). Lectotype: Agardhs (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 18031806 under the command of Adam Krusenstern, and the second collection made at Kamchatka by Chamisso on the later Romanzof Expedition of 18151818 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. Agardhs (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.Agardhs illustration (1821) and therefore is not a suitable lectotype." They concurred with Powells (1957) earlier designation of the type of F. evanescens as C.Agardhs illustration (1821, pl. XIII)."
Origin of species name
Adjective (Latin), arranged in two opposite rows (Stearn 1973).
No synonyms are currently included in AlgaeBase.
This is a marine species.
Distribution by country
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).
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
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 may be viewed at http://sagdb.uni-goettingen.de/showstrains.php?genus=Fucus&species=distichus
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
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.
(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
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.