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Rhodothamniella floridula (Dillwyn) Feldmann 1978

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Nemaliophycidae
Order Palmariales
Family Rhodothamniellaceae
Genus Rhodothamniella

Pictures

click on thumbnail for larger version.

Rhodothamniella floridula (Dillwyn) Feldmann
middle intertidal, North of Spain, Spain, 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
middle intertidal, North of Spain, Spain, 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
middle intertidal, Ria de A Coruña, Galicia, Spain, 2013. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
middle intertidal, Ria de A Coruña, Galicia, Spain, 2013. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
middle intertidal, Ría de Muros, Galicia, Spain, 2006. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
South of Portugal, 2010. 09 Dec 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
South of Portugal, 2010. 09 Dec 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
Ría de Arousa, Galicia Spain, 2011. 09 Dec 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
North of Spain, 2011. 09 Dec 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Rhodothamniella floridula (Dillwyn) Feldmann
North of Spain, 2011. 09 Dec 2011. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

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20 Found - Displaying 1 through 10

 

Audouinella thuretii (Bornet) Woelkerling

Rhodothamniella floridula (Dillwyn) Feldmann Rhodothamniella floridula Curragh, Co. Waterford, Ireland
© Michael Guiry (mike.guiry@nuigalway.ie)

Publication details
Rhodothamniella floridula (Dillwyn) Feldmann in T.Christensen 1978: 67

Published in: Christensen, T. (1978). Annotations to a textbook of phycology. Botanisk Tidsskrift 73: 65-70.

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

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

Basionym
Conferva floridula Dillwyn

Type information
Syntype localities: "Rocks on the Sea shore. On the Galway Coast; Dr. Scott. On the Antrim Coast; Mr. Mackay." [Ireland] (Dillwyn 1809: 73). Lectotype: BM (Woelkerling & Womersley 1994: 45). Notes: Type locality: Galway coast, Ireland; Holotype (cited as lectotype in Diaz-Tapia, 2014): NMW (fide Woelkerling, 1971: 31). "Dr Scott" was probably Robert Scott (ca 1757-1808), Professor of Botany at Trinity College Dublin from 1800 to 1808. Mr MacKay was James Townsend MacKay (ca 1775-1862), first curator of the [Trinity] College Botanic Gardens, then at Ballsbridge, Dublin, from 1808, and an Assistant at TCD from 1806. [Woelkerling 1971: 31 cites NMW but later publications cite BM (Dixon & Irvine, 1977: 97; Woelkerling & Womersley in Womersley, 1994: 45)].

Origin of species name
(Latin), a diminutive of floridus meaning, somewhat blooming.

Homotypic Synonym(s)
Conferva floridula Dillwyn 1809
Ceramium floridulum (Dillwyn) C.Agardh 1817
Callithamnion floridulum (Dillwyn) Lyngbye 1819
Trentepohlia floridula (Dillwyn) Harvey 1836
Rhodochorton floridulum (Dillwyn) Nägeli 1862
Thamnidium floridulum (Dillwyn) Thuret 1863
Chromastrum floridulum (Dillwyn) Papenfuss 1945
Kylinia floridula (Dillwyn) Papenfuss 1947
Audouinella floridula (Dillwyn) Woelkerling 1971

Habitat notes
Sand-covered rocks; from the upper intertidal to the upper subtidal, in sites from shelterd to extremely wave-exposed ( Diaz-Tapia & Bárbara, 2014) - (24 Jun 2014) - Wendy Guiry

General environment
This is a marine species.

Common names

(as Rhodothamniella floridula (Dillwyn) Feldmann)
English: Sand Binder (Bunker & al. 2010).

Description
Forming a dense, brown- or purplish-red turf of sparingly branched erect, uniseriate hair-like filaments. Cells oblong, 3-4 times as long as broad. Several plastids, each with a pyrenoid, against cell wall. Reproducing by tetrasporangia, mostly in winter. Monosporangia absent.

Habitat
Turf-forming on sand-covered rocks, mid- and lower intertidal, often under Fucus serratus; widely distributed, very common.

Key characteristics
Turf-forming habit and association with sand-coved rocks. Absence of monosporangia.

Similar species
Rhodochorton purpureum forms less extensive turfs. Microscopic examination (for the presence of pyrenoids in plastids) is required to be certain of the identity of this species.

Detailed distribution with sources
(as Callithamnion floridulum (Dillwyn) Lyngbye)
Europe: Ireland (Sanders 1860, McMillan & Morton 1979).

(as Rhodochorton floridulum (Dillwyn) Nägeli)
Atlantic Islands: Madeira (Levring 1974), Tristan da Cunha (Baardseth 1941).

Europe: Belgium (Coppejans & Kling 1995), Britain (Newton 1931), Channel Islands (Lyle 1920, Dixon 1961), France (Coppejans & Kling 1995), Ireland (Adams 1908, Cotton 1912, Cullinane 1971), Netherlands (Stegenga & Mol 1983), Scandinavia (Athanasiadis 1996), Spain (Miranda 1931).

(as Audouinella floridula (Dillwyn) Woelkerling)
Atlantic Islands: Tristan da Cunha (Woelkerling 1971).

Europe: Britain (Dixon & Irvine 1977), France (Dizerbo & Herpe 2007), Germany (Ludwig & Schnittler 1996), Ireland (Dixon & Irvine 1977, Guiry 1978, De Valéra & al. 1979, Maggs 1983, Whelan & Cullinane 1985, Morton 1994), Italy (Báez et al 2005a, Báez et al. 2005b), Norway (Rueness 1997, Brattegard & Holte 2001), Spain (Pérez-Cirera & Maldonado 1982, Fernández & Niell 1982, Fernández, Niell & Anadón 1983, Barbara, Cremades & López Rodriguez 1992).

Australia and New Zealand: New South Wales (Womersley 1994), South Australia (Womersley 1994), Victoria (Womersley 1994).

(as Rhodothamniella floridula (Dillwyn) Feldmann)
Atlantic Islands: Madeira (Neto, Cravo & Haroun 2001, John & al. 2004).

Europe: Atlantic France (Burel, Le Duff & Ar Gall 2019), Britain (Guiry 1997, Hardy & Guiry 2003, Brodie & al. 2015, Bunker & al. 2017), France (Diaz-Tapia & Bárbara 2014, Anon. 2017), France (Breizh) (Feldmann 1954), Helgoland (Bartsch & Kuhlenkamp 2000), Ireland (Guiry 2012, Bunker & al. 2017), Netherlands (Stegenga & al. 1997), Portugal (Ardré 1970, Araujo & al. 2005, Araújo et al. 2006, Araújo & al. 2009, Bárbara et al. 2012), Spain (Granja, Cremades & Barbara 1992, Bárbara, Cremades & Pérez-Cirera 1995, Bárbara & Cremades 1996, Cremades, Bárbara, Granja & Veiga 1997, Veiga, Cremades & Bárbara 1998, Calvo, Bárbara & Cremades 1999, Calvo & Bárbara 2002, Peña & Bárbara 2002, Valenzuela Miranda 2002, Bárbara & al., 2003, Gorostiaga & al., 2004, Bárbara & al. 2005, Diaz-Tapia & Bárbara 2005, Peña & Bárbara 2006, Martínez-Gil et al. 2007, Pena & Bárbara 2008, Peña & Bárbara 2008, Peña & Bárbara 2010, Cires Rodriguez & Cuesta Moliner 2010, Diaz Tapia et al. 2011), Spain (incl. Canary Is.) (Gallardo & al. 2016).

South America: Argentina (Boraso & Zaixso 2011, Boraso de Zaixso 2013).

Africa: Namibia (Rull Lluch 2002, Rull Lluch & Gómez Garreta 2002, John & al. 2004), South Africa (Stegenga 1985, Bolton & Stegenga 1987, Silva & al. 1996, Stegenga, Bolton & Anderson 1997).

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

Boraso de Zaixso, A.L. (2013). Elementos para el estudio de las macroalgas de Argentina. Con colaboración de J.M. Zaixso. pp. [1]-204. Comodoro Rivadavia: Universitaria de la Patagonia.

Diaz-Tapia, P. & Bárbara, I. (2014). Seaweeds from sand-covered rocks of the Atlantic Iberian Peninsula. Part 2. Palmariales, Ceramiales (excluding Rhodomelaceae), Gelidiales, Gigartinales, Plocamiales, Rhodymeniales and Scytothamniales. Cryptogamie Algologie 35(2): 157-199.

Funk, G. (1955). Beiträge zur Kenntnis der Meeresalgen von Neapel: Zugleich mikrophotographischer Atlas. Pubblicazioni della Stazione Zoologica di Napoli 25(Suppl.): i-x , 1-178, 36 figs.

Garbary, D.J. (1987). The Acrochaetiaceae (Rhodophyta): an annotated bibliography. Bibliotheca Phycologica 77: 1-267, 2 tables.

Silva, P.C., Basson, P.W. & Moe, R.L. (1996). Catalogue of the benthic marine algae of the Indian Ocean. University of California Publications in Botany 79: [i]-xiv, 1-1259.

Stegenga, H. (1978). Life histories of Rhodochorton purpureum and Rhodochorton floridulum (Rhodophyta, Nemaliales) in culture. British Phycological Journal 13: 279-289.

Woelkerling, W.J. & Womersley, H.B.S. (1994). Order Acrochaetiales Feldmann 1953: 12. In: The marine benthic flora of southern Australia. Rhodophyta - Part IIIA. (Womersley, H.B.S. Eds), pp. 42-76. Canberra:

Created: 30 March 1996 by M.D. Guiry

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

Accesses: This record has been accessed by users 19058 times since it was created.

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

Hommeril, P. & Rioult, M. (1962). Phenomenes d'erosion et de sedimentation marines entre Sainte-Honorine-des-Pertes et Port-en-Bessin (Calvados). Role de Rhodothamniella floridula dans la retenue des sediments fins. Cah. Oceanogr. 14: 25-45.
Hommeril, P. & Rioult, M. (1965). Étude de la fixation de sédiments meubles par deux algues marines: Rhodothamniella floridula (Dillwyn) J. Feldmn. et Microcoleus chtonoplastes Thur.. Mar. Geol. 3: 131-155.
Lichtlé, C. (1973). Ultrastructure du plaste de deux Rhodophycées: Rhodochorton purpureum (Lighft.) Rosenvinge et Rhodothamniella floridula (Dillwyn) J. Feldmann. Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. Série D 277: 1865-1868.
Pérez-Ruzafa, I., Lazzo, G. & Conde Poyales, F. (2005). Mapas de distribución de algas marinas de la Península Ibérica e Islas Baleares. XIX. Palmaria palmata y Rhodothamniella floridula (Palmariales, Rhodophyta). Botanica Complutensis 29: 71-75.

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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 October 2021.

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