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Rhodomela confervoides (Hudson) P.C.Silva

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Rhodomelaceae
Tribe Rhodomeleae
Genus Rhodomela

Pictures

click on thumbnail for larger version.

Rhodomela confervoides (Hudson) P.C.Silva
habit, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
microscope, transverse section at the base, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
microscope, transverse section at the base, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
microscope, transverse section at the base, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
microscope, surface view, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
microscope, apex, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
microscope, transverse seccion, Costa da Morte, Galicia, Spain, 2009. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodomela confervoides (Hudson) P.C.Silva
Collected near Roscoff (F), December 1984. 29 Dec 2011. Elmar Wosnitza. © Christine Wosnitza.

Rhodomela confervoides (Hudson) P.C.Silva
Collected near Roscoff (F), Dec 1984. 29 Dec 2011. Elmar Wosnitza. © Christine Wosnitza.

Rhodomela confervoides (Hudson) P.C.Silva
Brittany, 2011. 09 Dec 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

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Chaetophora subcutanea Lyngbye ex Hornemann

Rhodomela confervoides (Hudson) P.C.Silva microscope, TS frond; North of Portugal, Montedor, 1999
© Ignacio Bárbara (barbara@udc.es)

Publication details
Rhodomela confervoides (Hudson) P.C.Silva 1952: 269

Published in: Silva, P.C. (1952). A review of nomenclatural conservation in the algae from the point of view of the type method. University of California Publications in Botany 25: 241-323.

Type species
The type species (holotype) of the genus Rhodomela is Rhodomela subfusca (Woodward) C.Agardh.

Status of name
This name is of an entity that is currently accepted taxonomically.

Basionym
Fucus confervoides Hudson

Origin of species name
Compound (Latin), resembling the genus Conferva.

Homotypic Synonym(s)
Fucus confervoides Hudson 1762
Sphaerococcus confervoides (Hudson) C.Agardh 1817

Heterotypic Synonym(s)
Rhodomela subfusca var. firmior J.Agardh
Fucus subfuscus Woodward 1791
Fucus variabilis Goodenough & Woodward 1797
Fuscaria variabilis Stackhouse 1809
Gigartina subfusca (Woodward) J.V.Lamouroux 1813
Sphaerococcus subfuscus (Woodward) C.Agardh 1817
Sphaerococcus subfuscus var. tenuior C.Agardh 1817
Gigartina subfusca var. tenuior (C.Agardh) Lyngbye 1819
Gigartina subfusca var. flaccida Lyngbye 1819
Gigartina subfusca var. racemosa Lyngbye 1819
Rhodomela subfusca (Woodward) C.Agardh 1822
Rhodomela subfusca var. tenuior (C.Agardh) C.Agardh 1822
Rhodomela subfusca var. flaccida (Lyngbye) C.Agardh 1822
Rhodomela subfusca var. penicillata C.Agardh 1822
Lophura gracilis Kützing 1843
Rhodomela rochei Harvey 1853
Rhodomela subfusca f. gracilior J.Agardh 1863
Rhodomela subfusca f. extrataeniensis Areschoug 1875
Rhodomela subfusca f. gracilis (Kützing) Areschoug 1875
Rhodomela subfusca f. intrataeniensis Areschoug 1875
Rhodomela subfusca f. tenuior (C.Agardh) Svedelius 1901
Rhodomela subfusca f. abyssicola Rosenvinge 1924
Rhodomela confervoides f. gracilior (J.Agardh) W.R.Taylor 1957
Rhodomela confervoides f. rochei (Harvey) W.R.Taylor 1957
Rhodomela confervoides f. abyssicola (Rosenvinge) Pankow 1971
Rhodomela confervoides f. gracilis (Kützing) Pankow 1971
Rhodomela confervoides f. tenuior (C.Agardh) Pankow 1971

General environment
This is a marine species.

Common names

(as Rhodomela confervoides (Hudson) P.C.Silva)
English: Straggly Bush weed (Bunker et al. 2010).

Description
Cylindrical, cartilaginous, bushy, brownish red fronds, to 300 mm long. Much branched, repeatedly, irregularly. Branches clothed with small, pinnate branchlets and simple, pointed ramuli. In winter branchlets are shed and frond appears bare, spiky, very different from summer appearance. Central siphon surrounded by elongated cells with outer band of small coloured cells, articulations not visible.

Habitat
On rocks and shells, intertidal pools at all levels; widely distributed, common.

Similar species
Rhodomela lycopodioides (Linnaeus) C. Agardh is a northern species common in Scotland, north England, north and west

Detailed distribution with sources (Click to Load)

Key references
Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. II. pp. [2], 763-1504. Thessaloniki: Published and distributed by the author.

Bates, C.R., Saunders, G.W. & Chopin, T. (2005). An assessment of two taxonomic distinctness indices for detecting seaweed assemblage responses to environmental stress. Botanica Marina 48: 231-243.

Larsen, A. & Sand-Jensen, K. (2005). Salt tolerance and distribution of estuarine benthic macroalgae in the Kattegat-Baltic Sea area. Phycologia 45: 13-23.

Loiseaux-de Goër, S. & Noailles, M.-C. (2008). Algues de Roscoff. pp. [1]-215, col. figs. Roscoff: Editions de la Station Biologique de Roscoff.

Maggs, C.A. & Hommersand, M.H. (1993). Seaweeds of the British Isles. Volume 1. Rhodophyta. Part 3A. Ceramiales. pp. [i]-xv, 1-444, 129 figs, map. London: HMSO.

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. (2011). The order Ceramiales (Rhodophyta) in the flora of the Arctic Ocean. Botanicheskii Zhurnal (St. Petersburg) 96(6): 681-695.

Zuccarello, G.C. & West, J.A. (2006). Molecular phylogeny of the subfamily Bostrychioideae (Ceramiales, Rhodophyta): subsuming Stictosiphonia and highlighting polyphyly in species of Bostrychia. Phycologia 45: 24-36.

Zuccarello, G.C., Moon, D. & Goff, L.J. (2004). A phylogenetic study of parasitic genera placed in the family Choreocolacaceae (Rhodophyta). Journal of Phycology 40: 937-945, 2 figs, 2 tables.

Created: 31 March 1996 by M.D. Guiry

Verified by: 01 August 2017 by M.D. Guiry

Accesses: This record has been accessed by users 10180 times since it was created.

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

Pedersén, M., Roomans, G.M. & Hofsten, A.V. (1980). Cell inclusions containing bromine in Rhodomela confervoides (Huds.) Lamour. and Polysiphonia elongata Harv. (Rhodophyta; Ceramiales). Phycologia 19: 153-158, 6 figs.
Rietema, H. (1995). Ecoclinal variation in Rhodomela confervoides along a salinity gradient in the North Sea and Baltic Sea. Botanica Marina 38: 475-479, 3 figs.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 December 2018.

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