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Leptophytum laeve Adey, nom. illeg.

Publication details
Leptophytum laeve Adey 1966: 324, nom. illeg.

Published in: Adey, W.H. (1966). The genera Lithothamnium, Leptophytum (nov. gen.) and Phymatolithon in the Gulf of Maine. Hydrobiologia 28: 321-370, 112 figs, tables I-VI.

Type species
This is the type species (holotype) of the genus Leptophytum.

Origin of species name
Adjective (Latin), smooth, free from uneveness, hairs or roughness (Stearn 1973).

Heterotypic Synonym(s)
Lithophyllum lenormandii f. laeve Foslie 1891
Lithothamnion laeve (Foslie) Foslie 1898

Nomenclatural notes
Adey (1966: 324) designated Leptophytum laeve (one of two species originally included in the genus) as holotype species, citing Lithophyllum laeve Strömfelt 1886 as the basis for his name. This means that the generic name Leptophytum is typified (ICBN Art 10.1) by the type of Lithophyllum laeve Strömfelt (1886: 21), even though Lithophyllum laeve Strömfelt is an illegitimate later homonym (ICBN Art. 53.1) of Lithophyllum laeve Kützing (1847: 33).

Because the binomial Lithophyllum laeve Strömfelt is illegitimate, it cannot serve as the basionym for the binomial Leptophytum laeve (ICBN Art. 6.4, 6.6), which also would be illegitimate (as in Leptophytum laeve (Strömfelt) Adey, 1966: 324). Recognizing this, Düwel & Wegeberg (1996: 473), on advice from Paul Silva (as a personal communication), treated Leptophytum laeve as a new name (nomen novum) (ICBN Art. 58.1) ascribed solely to W.H. Adey. As a nomen novum, Leptophytum laeve Adey is based (ICBN Art. 7.5, 58.1) on the same type as the illegitimate name, in this case the type of Lithophyllum laeve Strömfelt, cited by Adey (1966: 324) as the basis for his species name. Additional comments legitimate and illegitimate names [including Lithophyllum lenormandii f. laeve], authorities and dating priority are provided in Woelkerling et al. 2002: 616).

Athanasiadis (in Marine Biology Research 12(5): 556. 2016) remarks: "... a comment on the authorship of Leptophytum laeve (Foslie) Adey is required, because the alternative author citation "Leptophytum laeve Adey" entered the literature (Düwel & Wegeberg 1996; Woelkerling et al. 2002; Adey et al. 2015). While the same article (58.1) is invoked to provide a legitimate name for Lithophyllum laeve Strömfelt, 1886 (non Lithophyllum laeve Kützing, 1847), two different choices have been made. Adey et al. (2001) accepted the earliest (legitimate) name (i.e. the trinomial Lithophyllum lenormandii f. laeve Foslie, 1891), while Woelkerling et al. (2002) adopted Leptophytum laeve Adey (1966) as nomen novum "...the latter choice with the motivation that each taxon has priority at its own rank (Art. 11.2). Art. 58.1 does not specify whether the epithet from the earliest (legitimate) name should be adopted (regardless of rank). Yet, this is logical, as it would otherwise create different basionyms (or types) at different ranks for the same nomenclatural entity." - (27 Aug 2009) -

Taxonomic notes
A complicated nomenclatural and taxnomic history is associated with this, the type species of the genus Leptophytum (see Woelkerling et al., 2002).

General environment
This is a marine species.

No distributions recorded
No distributional records for this taxon have been recorded by AlgaeBase to date. Generally, recent national lists or extensive regional or state lists have been employed to give a general indication of distribution.

(as Lithophyllum lenormandii f. laeve Foslie)
Atlantic Islands: Iceland (Adey, Athanasiadis & Lebednik 2001).

(as Lithothamnion laeve (Foslie) Foslie)
Arctic: Canada (Arctic) (Lee 1980).

Europe: Norway (Jaasund 1965).

Atlantic Islands: Greenland (Lund 1959).

North America: Alaska (AK) (Saunders 1901), Mexico (Dawson 1960).

(as Leptophytum laeve Adey)
Arctic: Russia (Arctic) (Vinogradova 2010), Svalbard (Spitsbergen) (Gulliksen et al. 1999), White Sea (Mikhaylova 2017).

Europe: Baltic Sea (Nielsen et al. 1995, Kontula & Fürhapter 2012), Britain (Irvine & Chamberlain 1994, Hardy & Guiry 2003), Faroe Islands (Irvine 1982), France (Anon. 2017), Ireland (Guiry 2012), Norway (Rueness 1997, Brattegard & Holte 2001), Spitsbergen (Athanasiadis 2007).

Atlantic Islands: E. Greenland (Pedersen 1976), Iceland (Caram & Jónsson 1972).

North America: Connecticut (CT) (Schneider, Suyemoto & Yarish 1979), New Hampshire (HN) (Mathieson & Hehre 1986).

Asia: Commander Islands (Selivanova & Zhigadlova 1997), Japan (Yoshida, Nakajima & Nakata 1990, Yoshida 1998), Russia (Far East) (Kloczcova 1996, Perestenko 1994, Selivanova 2002).

Key references
Adey, W.H., Athanasiadis, A. & Lebednik, P.A. (2001). Re-instatement of Leptophytum and its type Leptophytum laeve: taxonomy and biogeography of the genera Leptophytum and Phymatolithon (Corallinales, Rhodophyta). European Journal of Phycology 36: 191-204.

Adey, W.H., Hernández-Kantún, J.J., Johnson, G. & Gabrielson, P.W. (2015). DNA sequencing, anatomy, and calcification patterns support a monophyletic, subarctic, carbonate reef-forming Clathromorphum (Hapalidiaceae, Corallinales, Rhodophyta). Journal of Phycology 51(1): 189-203.

Adey, W.H., Hernández-Kantún, J.J., Johnson, G. & Gabrielson, P.W. (2015). DNA sequencing, anatomy, and calcification patterns support a monophyletic, subarctic, carbonate reef-forming Clathromorphum (Hapalidiaceae, Corallinales, Rhodophyta). Journal of Phycology 51(1): 189-203.

Athanasiadis, A. (2007 '2006'). The genus Leptophytum (Melobesioideae, Corallinales, Rhodophyta) in NW Spitsbergen. Nordic Journal of Botany 24: 469-499.

Athanasiadis, A. & Adey, W.H. (2003). Proposal to conserve the name Lithophyllum laeve Stromfelt against L. laeve Kützing (Corallinales, Rhodophyta) with a conserved type. Taxon 52: 342-350, 26 figs, 1 table.

Athanasiadis, A. & Adey, W.H. (2006). The genus Leptophytum (Melobesioideae, Corallinales, Rhodophyta) on the Pacific coast of North America. Phycologia 45: 71-115.

Athanasiadis, A. (2016). Leptophytum flavescens comb. nov. (Corallinales, Rhodophyta), an Arctic endemic from the sublittoral of NW Spitsbergen, North Norway, and western Novaya Zemlya, with epitypification of L. laeve. Marine Biology Research 12(5): 551-558.

Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. I. pp. [i]-xxxxviii, 1-762. Thessaloniki: Published and distributed by the author.

Düwel, L. & Wegeberg, S. (1996). The typification and status of Leptophytum (Corallinaceae, Rhodophyta). Phycologia 35: 470-483.

Klochkova, N.G., Korolyova, T.N. & Kusidi, A.E. (2009). [Atlas of marine algae of Kamchatka and surrounding areas. Vol. 2. Red seaweeds]. pp. 1-301. Petropavlovsk-Kamchatsky: KamchatNIRO Press. [in Russian]

Kloczcova, N.G. (1996). Flora vodoroslei makrofitov Tatarskogo Proliva i osobennosti ee formirovanija [Macrophyte algal flora of Tatars Gulf (Sea of Japan) and peculiarities of its formation]. pp. 1-289. Vladivostock: Dalnauka. [in Russian]

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.

Vinogradova, K.L. (2010). Taxonomic review of the Corallinales (Rhodophyta) in the northern Russian seas. Botanicheskii Zhurnal (St. Petersburg) 95(5): 667-681, 6 pls.

Woelkerling, W.J., Furnari, G. & Cormaci, M. (2002). Leptophytum (Corallinaceae, Rhodophyta): to be or not to be? - that is the question, but what is the answer?. Australian Systematic Botany 15: 597-618.

Created: 16 April 1996 by M.D. Guiry

Verified by: 28 July 2017 by M.D. Guiry

Accesses: This record has been accessed by users 1905 times since it was created.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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

Adey, W.H., Athanasiadis, A. & Lebednik, P.A. (2001). Re-instatement of Leptophytum and its type Leptophytum laeve: taxonomy and biogeography of the genera Leptophytum and Phymatolithon (Corallinales, Rhodophyta). European Journal of Phycology 36: 191-204.
Athanasiadis, A. (2016). Leptophytum flavescens comb. nov. (Corallinales, Rhodophyta), an Arctic endemic from the sublittoral of NW Spitsbergen, North Norway, and western Novaya Zemlya, with epitypification of L. laeve. Marine Biology Research 12(5): 551-558.
Chamberlain, Y.M. (1990). The genus Leptophytum (Rhodophyta, Corallinaceae) in the British Isles with descriptions of Leptophytum bornetii, L. elatum sp. nov and L. laeve. British Phycological Journal 25: 179-199.

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Citing AlgaeBase
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 24 March 2019.

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