Fucus distichus subsp. evanescens (C. ) H.T.Powell
Fucus evanescens C.Agardh Habit. Photo kindly given by M.V. Sukhoveeva (plant collected in the Okhotsk Sea, Russia).
© Eduard and Tamara Titlyanova (firstname.lastname@example.org)
Fucus distichus subsp. evanescens (C.Agardh) H.T.Powell 1957: 426
Published in: 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 of an entity that is currently accepted taxonomically.
Fucus evanescens C.Agardh
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).
Fucus evanescens C.Agardh 1820
Fucus evanescens var. edentatus (De La Pylaie) Strömfelt 1886
Virsodes evanescens (C.Agardh) Kuntze 1891
Fucus inflatus var. evanescens (C.Agardh) Rosenvinge 1893
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
This is a marine species.
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.
Mathieson, A.C. & Dawes, C.J. (2017). Seaweeds of the Northwest Atlantic. pp. [i]-x, 1-798, CIX pls. Amherst & Boston: University of Massachusetts Press.
Created: 22 December 1998 by M.D. Guiry
Verified by: 27 July 2017 by M.D. Guiry
Accesses: This record has been accessed by users 3272 times since it was created.
Verification of data
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(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 C. Ag. Novitates Systematicae Plantarum non Vascularium 2: 64-70.
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Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 23 January 2019.