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Dictyota dichotoma (Hudson) J.V.Lamouroux 1809

Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Subclass Dictyotophycidae
Order Dictyotales
Family Dictyotaceae
Tribe Dictyoteae
Genus Dictyota


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Dictyota dichotoma (Hudson) J.V.Lamouroux
  Málaga, Spain. 17 Mar 2021.  M. Altamirano. © Maria Altamirano Jeschke .

Dictyota dichotoma (Hudson) J.V.Lamouroux
prés du Loup, Roscoff, Bretagne, France; iridescent plants with Chondrus crispus and Zostera. 05 Jun 2016. Susan de Goer. © Susan de Goer .

Dictyota dichotoma (Hudson) J.V.Lamouroux
Spiddal, Co. Galway, Ireland; with blue iridescence. 19 Jun 2020. M.D. Guiry. © M.D. Guiry.

Dictyota dichotoma (Hudson) J.V.Lamouroux
subtidal with Chylocladia verticillata, A Coruña, Galicia, Spain, 2015. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Dictyota dichotoma (Hudson) J.V.Lamouroux
iridescent algae, prés du rocher du Loup, Roscoff, France. 05 Jun 2016. S. Loiseaux-de Goër. © S. Loiseaux-de Goër.

Dictyota dichotoma (Hudson) J.V.Lamouroux
Cabo de Palos, Murcia, Spain. 10 Aug 2014. Isabel Rubio Perez " . © marmenormarmayor.es.

Dictyota dichotoma (Hudson) J.V.Lamouroux
Peter the Great Bay, Russia. 27 Mar 2012. Oksana Belous. © Oksana Belous (ksu_bio@mail.ru).

Dictyota dichotoma (Hudson) J.V.Lamouroux
Peter the Great Bay, Russia. 27 Mar 2012. Oksana Belous. © Oksana Belous (ksu_bio@mail.ru).

Dictyota dichotoma (Hudson) J.V.Lamouroux
1. Habit. 2. Branching pattern. 3. Low intertidal (Nhatrang Bay, Vietnam).. 09 Mar 2012. Eduard and Tamara Titlyanova. © Eduard and Tamara Titlyanova (etitlyanov@mail.ru).

Dictyota dichotoma (Hudson) J.V.Lamouroux
Collected near Roscoff (F), December 1984. 29 Dec 2011. Elmar Wosnitza. © Christine Wosnitza.

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43 Found - Displaying 1 through 10


Boreothamnion villosum M.J.Wynne

Dictyota dichotoma (Hudson) J.V.Lamouroux Madeira
© Peter Wirtz (peterwirtz2004@yahoo.com )

Publication details
Dictyota dichotoma (Hudson) J.V.Lamouroux 1809: 42

Published in: Lamouroux, J.V.F. (1809). Exposition des caractères du genre Dictyota, et tableau des espèces qu'il renferem. Journal de Botanique [Desvaux] 2: 38-44.
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Type species
This is the type species (holotype) of the genus Dictyota.

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

Ulva dichotoma Hudson

Type information
Type locality: Walney Island, Lancashire, England (Silva & al. 1996: 589). Notes: According to Womersley (1987: 194), the type is from England: probably lost. According to De Clerck (2003), a neotype needs to be selected.

Origin of species name
Adjective (Latin), dichotomous, having divisions always in pairs (Stearn 1973).

Homotypic Synonym(s)
Ulva dichotoma Hudson 1762
Zonaria dichotoma (Hudson) C.Agardh 1817
Fucus dichotomus (Hudson) Bertoloni 1819
Haliseris dichotoma (Hudson) Sprengel 1827
Dichophyllium dichotomum (Hudson) Kützing 1843

Heterotypic Synonym(s)
Fucus zosteroides J.V.Lamouroux 1805
Dictyota rotundata J.V.Lamouroux 1809
Zonaria rotundata (Lamouroux) C.Agardh 1817
Dictyota dichotoma var. acuta Chauvin ex Duby 1830
Dictyota setosa Duby 1830
Dictyota dichotoma var. volubilis Lenormand 1843
Dictyota acuta Kützing 1845
Dictyota volubilis Kützing 1849
Dictyota acuta var. patens Kützing 1849
Dictyota dichotoma var. rigida P.Crouan & H.Crouan 1852
Dictyota aequalis var. minor Kützing 1859
Dictyota attenuata Kützing 1859
Dictyota elongata Kützing 1859
Dictyota latifolia Kützing 1859
Dictyota dichotoma var. elongata (Kützing) Grunow 1874
Dictyota dichotoma var. stenoloba Hohenacker 1883
Dictyota dichotoma f. latifrons Holmes & Batters 1890
Dictyota areolata Schousboe 1892
Dictyota complanata Schousboe ex Bornet 1892
Dictyota dichotoma f. attenuata (Kützing) Vinassa 1892
Dictyota dichotoma f. latifolia (Kützing) Vinassa 1892
Neurocarpus annularis Schousboe 1892
Neurocarpus areolatus Schousboe 1892
Dictyota apiculata J.Agardh 1894
Dictyota dichotoma f. elongata (Kützing) Schiffner 1933
Dictyota dichotoma var. minor Kützing 1981
Dictyota dichotoma f. spiralis Nizamuddin 1981

Taxonomic notes
John et al. (2004) cite Dictyota implexa (Desfont.) J.V. Lamour, D. linearis (C. Agardh) Grev. and D. volubilis Kütz. as synonyms of this species.

Distributional notes
South & Skelton (2003) note that Fijian records of Dictyota require a thorough revision comparable with that made for Indian Ocean species by de Clerck (1999). De Clerck (2003) notes that this species is reported from all around the world but is possibly restricted to the north-east Atlantic Ocean and Mediterranean Sea. Tsuda (2004: 50) notes that Schnetter et al (1987), Hornig & Schnetter (1988) and De Clerck & Coppejans (1997) follow the premise that D. dichotoma is restricted to the North Atlantic; therefore , the Pacific species cited as D. dichotoma and D. apiculata should bear another name.

Habitat notes
A common species of eulittoral pools and the shallow subtidal in the NE atlantic (Tronholm et al 2010). - (4 Feb 2011) - Wendy Guiry

General environment
This is a marine species.

Common names

(as Dictyota dichotoma (Hudson) J.V.Lamouroux)
English: Divided Net Weed, Brown Fan Weed (Bunker & al. 2010).

German: Gemeine Gabelzunge (Braune 2008).

Detailed distribution with sources (Click to Load)

Key references
Agardh, J.G. (1882). Till algernes systematik. Nya bidrag. (Andra afdelningen.). Lunds Universitets Års-Skrift, Afdelningen for Mathematik och Naturvetenskap 17(4): 1-134, 3 plates.

Belous, O.S., Titlyanova, T.V. & Titlyanov, E.A. (2013). Morskiye rasteniya bukhty Troitsy i smezhnykh akvatorii radno (Zaliv Petra Velikogo, Yaponskoye more) [Marine plants of Trinity Bay and adjacent waters (Peter the Great Bay, Sea of Japan)]. pp. 263, profusely illustrated. Vladivostok: Dal'nauka. [in Russian]

Boo, S.M. & Ko, Y.D. (2012). Marine plants from Korea. pp. [1] 5-233, many col. photographs. Seoul: Marine & Extreme Genome Research Centre Program. [in Korean]

Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, pls 1-266 (colour photographs). Ruggell: A.R.G. Gantner Verlag.

Cormaci, M., Furnari, G., Catra, M., Alongi, G. & Giaccone, G. (2012). Flora marina bentonica del Mediterraneo: Phaeophyceae. Bollettino dell'Accademia Gioenia di Scienze Naturali di Catania 45: 1-508.

Dawson, E.Y. (1950). Notes on some Pacific Mexican Dictyotaceae.. Bulletin of the Torrey Botanical Club 77: 83-93, 3 figs.

Dawson, E.Y., Acleto, C. & Foldvik, N. (1964). The seaweeds of Peru. Beihefte zur Nova Hedwigia 13: 1-111, 81 pls.

De Clerck, O. (2003). The genus Dictyota in the Indian Ocean. Opera Botanica Belgica 13: 1-205, 54 figs, 12 tables.

De Toni, G.B. (1895). Sylloge algarum omnium hucusque cognitarum. Vol. III. Fucoideae. Vol. 3 pp. [i]-xvi, [1]-638. Patavii [Padua]: Sumptibus auctoris.

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.

Kornmann, P. & Sahling, P.-H. (1994). Meeresalgen von Helgoland: Zweite Ergänzung. Helgoländer Meeresuntersuchungen 48: 365-406.

Lee, J.W. & Hwang, I.K. (2010). Dictyotales, Desmarestiales. In: Algal flora of Korea. Volume 2, Number 2. Heterokontophyta: Phaeophyceae: Ishigeales, Dictyotales, Desmarestiales, Sphacelariales, Cutleriales, Ralfisales, Laminariales. (Anon. Eds), pp. 19-69. Incheon: National Institute of Biological Resources.

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

Luan Rixiao, Ding Lanping, Lu Baoren & Tseng, C.K. (2013). Flora algarum marinarum sinicarum Tomus III Phaeophyta No. I(1) Ectocarpales Ralfsiales Sphaceariales Dictyotales. pp. [i]-xxii, 1-195, pls I-XXII. Beijing: Science Press. [in Chinese]

Nielsen, R. & Lundsteen, S. (2019). Danmarks havalger Bind 2 Brunalger (Phaeophyceae) og Grønalger (Chlorophyta). Scientia Danica. Series B, Biologica 8: [1]-476, col. figs and distributional maps.

Pedroche, P.F., Silva, P.C., Aguilar Rosas, L.E., Dreckmann, K.M. & Aguilar Rosas, R. (2008). Catálogo de las algas benthónicas del Pacífico de México II. Phaeophycota. pp. [i-viii], i-vi, 15-146. Mexicali & Berkeley: Universidad Autónoma Metropolitana; Universidad Autónoma de Baja California; University of California Berkeley.

Rodríguez-Prieto, C., Ballesteros, E., Boisset, F. & Afonso-Carrillo, J. (2013). Guía de las macroalgas y fanerógamas marinas del Mediterráneo occidental. pp. [1]-656. Barcelona: Ediciones Omega, S.A..

Salavarría Palma, E.A. & Paul, S. (2020). A peep into the transcriptome studies of the industrially important brown algae with special focus on Macrocystis genus. Revista Peruana de Biología 27(1): 49-53.

Scott, F.J. (2017). Marine plants of Tasmania. pp. [i]-viii, 1-360, numerous col. illus. Hobart: Tasmania Herbarium, Tasmanian Museum and Art Gallery.

Sfriso, A. (2011). Ochrophyta (Phaeophyceae e Xanthophyceae). Ambiente di transizione italiani e litorali adiacenti. pp. [1]-234, pls 1-51. Bologna: Arpa Emilia-Romagna.

Titlyanov E.A., Titlyanova T.V. & Belous O.S. (2016). Useful marine plants of the Asia-Pacific Region countries. pp. 1-348, Many col. photo. Vladivostok: Dalnauka. [in Russian and English]

Titlyanov, E.A. & Titlyanova, T.V. (2012). Morskiye rasteniya stran Aziatsko-Tikhookeanskogo regiona, ikh ispol'zovaniye i kul'tivirovaniye [Marine plants of the Asian Pacific Region countries, their use and cultivation]. pp. 376, 52 numbered figures, 162 plates. Vladivostok: Dalnauka & A.V. Zhirmunsky Institute of Marine Biology Far East Branch of the Russian Academy of Sciences. [in Russian]

Tronholm, A., Steen, F., Tyberghein, L., Leliaert, F. Verbruggen, H., Siguan, M.A.R. & De Clerck, O. (2010). Species delimitation, taxonomy, and biogeography of Dictyota in Europe (Dictyotales, Phaeophyceae). Journal of Phycology 46(6): 1301-1321.

Trono, G.C., Jr (1997). Field guide and atlas of the seaweed resourves of the Philippines. pp. [i]-xx.[1]-306, 168 figs. Makati City, The Philippines: Bookmark, Inc..

Tsuda, R.T. (2004). Dictyota (Phaeophyceae) from Micronesia. In: Taxonomy of Economic Seaweeds with reference to the Pacific and other locations. (Abbott, I.A. & McDermid, K.J. Eds) Vol.9, pp. 41-56.

Womersley, H.B.S. (1987). The marine benthic flora of southern Australia. Part II. pp. [1]-484, 169 figs, 1 table, 8 plates, 4 maps. Adelaide: South Australian Government Printing Division.

Created: 31 March 1996 by M.D. Guiry

Verified by: 04 March 2021 by M.D. Guiry

Accesses: This record has been accessed by users 80467 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.)

Ahmad, V.U., Bano, S., Shaikh, W., Uddin, S. & Shameel, M. (1990). Isolation and structure determination of 1,1,6,6-tetrachloro, 3,4-diphenyl hexane from brown alga Dictyota dichotoma. Pakistan Journal of Scientific and Industrial Research 33: 428-430, 1 fig, 6 tables.
Du Rietz, G.E. (1918). Dictyota dichotoma (Huds.) Lamour. från skäret Bonden utanför Gullmarsfjordens mynning i Bohuslän. Svensk Botaisk Tidsskrift 12: 487.
Feldmann, G. & Gugliemi, G. (1972). Les physodes et les corps irisants du Dictyota dichotoma (Hudson) Lamouroux. Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. Série D 275: 751-754.
Flores-Moya, A., Hanelt, D., Figueroa, F.L., Altamirano, Mª, Viñegla, B. & Salles, S. (1999). Involvement of solar UV-B radiation in recovery of inhibited photosynthesis in the brown alga Dictyota dichotoma (Hudson) Lamouroux. J. Photochem. Photobiol. B: Biol. 49: 129-135.
Gaillard, J. & L'Hardy-Halos, M.-T. (1976). Corrélations morphogènes et comportement des deux initiales filles chez le Dictyota dichotoma (Huds.) Lamouroux (Dictyotales-Phéophycée). Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. Série D 282: 2167-2170.
Gaillard, J. & L'Hardy-Halos, M.-T. (1977). A propos de la morphogenèse du Dictyota dichotoma (Huds.) Lamouroux (Phéophycée, Dictyotale; phénomènes corrélatifs mis en évidence sur les tronçons apicaux isolés expérimentalement. Revue Algologique, Nouvelle Serie 12: 101-110.
Gaillard, J. & L'Hardy-Halos, M.-T. (1979). Corrélations de croissance chez le Dictyota dichotoma (Huds.) Lamouroux (Phóphycée, Dictyotale); contrôles mutuels de l'apex et la base du thalle au cours du développement des gamétophytes juvéniles. Revue Algologique, Nouvelle Serie 14: 149-162.
Gaillard, J. & L'Hardy-Halos, M.-T. (1980). Croissance et ramification chez le Dictyota dichotoma (Hudson) Lamouroux (Phéophycée, Dictyotale). Phycologia 19: 159-167.
Gaillard, J. & L'Hardy-Halos, M.-T. (1990). Morphogenèse du Dictyota dichotoma (Dictyotales, Phaeophyta). III. Ontogenèse et croissance des frondes adventives. Phycologia 29: 39-53, 39 figs, 7 tables.
Gaillard, J. (1972). L'iridescence chez deux Dictyotales, Dictyota dichotoma (Huds.) Lamouroux et Zonaria tournefortii (Lamour.) Montagne. Cytologie des cellules iridescentes. Botaniste 55: 71-79.
Gaillard, J., L'Hardy-Halos, M.T. & Pellegrini, L. (1986). Morphogenèse du Dictyota dichotoma (Huds.) Lamouroux (Phaeophyta. II. Ontogenèse du thalle et cytologie ultrastructurale de différents types de cellules. Phycologia 25: 340-357.
Hanelt, D., Uhrmacher, S. & Nultsch, W. (1995). The effect of photoinhibition on photosynthetic Oxygen production in the brown alga Dictyota dichotoma. Botanica Acta 108: 99-105.
Holden, H.S. (1913). On some abnormal specimens of Dictyota dichotoma. Memoirs and Proceedings of the Manchester Literary and Philosophical Society 57 (No. 9)(II): 1-6.
Hwang, I.K., Kim, H.-S. & Lee, W.J. (2005). Polymorphism in the brown alga Dictyota dichotoma (Dictyotales, Phaeophyceae) from Korea. Marine Biology, Berlin 147: 999-1015.
Höring, I. & Schnetter, R. (1988). Notes on Dictyota dichotoma, D. menstrualis, D. indica and D. pulchella spec. nova (Phaeophyta). Phyton 28: 277-291.
Hörnig, I. & Schnetter, R. (1988). Notes on Dictyota dichotoma, D. menstrualis, D. indica and D. pulchella spec. nova (Phaeophyta). Phyton (Horn) 28: 277-291.
Katsaros, C. & Galatis, B. (1985). Ultrastructural studies on thallus development in Dictyota dichotoma (Phaeophyta, Dictyotales). British Phycological Journal 20: 263-276, 21 figs.
Lee, W.J. & Kim, K.Y. (1997). Taxonomic study of Dictyota dichotoma (Phaeophyta) based on morphological variations of four local populations from Korea. Algae 12(2): 83-91, 5 figs, 3 tables. [in Korean]
Lund, S. (1940). Om Dictyota dichotoma (Huds.) Lamour. og andre nye arter for floraen i Nissum Bredning. Botanisk Tidsskrift 45: 180-194.
Mimuro, M., Katoh, T. & Kawai, H. (1990). Spatial arrangement of pigments and their interaction in the fucoxanthin-chlorophyll a/c protein assembly (FCPA) isolated from the brown alga Dictyota dichotoma. Analysis by means of polarized spectroscopy. Biochimica et Biophysica Acta 1015: 450-456.
Müller, D.G., Gassmann, G., Boland, W., Marner, F. & Jaenicke, L. (1981). Dictyota dichotoma (Phaeophyceae): identification of the sperm attractant. Science 212: 1040-1041.
Müller, S. & Clauss, H. (1976). Aspects of photomorphogenesis in the brown alga Dictyota dichotoma. Zeit. Pflanzenphysiol. 78: 461-465.
Nultsch, W., Pfau, J. & Materna-Weide, M. (1987). Fluence and wavelength dependence of photoinhibition in the brown alga Dictyota dichotoma. Marine Ecology Progress Series 41: 93-97.
Nultsch, W., Rüffer, U. & Pfau, J. (1984). Circadian rhythms in the chromatophore movements of Dictyota dichotoma. Marine Biology, Berlin 81: 217-222.
Pybus, C. (1974). Some observations on the behaviour of excised segments from Dictyota dichotoma (Huds.) Lamour. and Dilophus spiralis (Mont.) Hamel in culture. Irish Naturalists' Journal 18: 25-27.
Richardson, J.P. (1979). Overwintering of Dictyota dichotoma (Phaeophyceae) near its northern distribution limit on the east coast of North America. Journal of Phycology 15: 22-26.
Rull Lluch, J., Ribera, M.A., Barceló, M.C. & Gómez Garreta, A. (2005). Mapas de distribución de algas marinas de la Península Ibérica e Islas Baleares. XVIII. Dictyota dichotoma, D. linearis y D. mediterranea (Dictyotales, Fucophyceae) . Botanica Complutensis 29: 63-70.
Russell, G. (1970). Rhizoid production in excised Dictyota dichotoma. British Phycological Journal 5: 243-245.
Teixeira, V.L., Da Silva Almeida, S.A. & Kelecom, A. (1990). Chemosystematic and biogeographic studies of the diterpenes from the marine brown alga Dictyota dichotoma. Biochemical Systematics and Ecology 18: 87-92.
Tronholm, A., Sansón, M., Afonso-Carrillo, J. & De Clerck, O. (2008). Distinctive morphological features, file-cycle phases and seasonal variations in subtropical populations of Dictyota dichotoma (Dictyotales, Phaeophyceae). Botanica Marina 51: 132-144.

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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 September 2021.

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