161,427 species and infraspecific names are in the database, 22,723 images, 62,830 bibliographic items, 473,328 distributional records.

Digenea simplex (Wulfen) C.Agardh 1822

Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Rhodomelaceae
Tribe Alsidieae
Genus Digenea


click on thumbnail for larger version.

Digenea simplex (Wulfen) C.Agardh
Barrow Island, Western Australia. J.M. Huisman. © J.M. Huisman.

Digenea simplex (Wulfen) C.Agardh
recolectada en la zona Sur del Macizo Guamuhaya. Hábito. Foto: Ángel Moreira..

Digenea simplex (Wulfen) C.Agardh
1. Habit. 2. Upper portion of thallus. 3. Natural habitat at low intertidal fringing coral reef of Sesoko Island, (Okinawa, Japan).. 28 Feb 2012. Eduard and Tamara Titlyanova (etitlyanov@mail.ru). © Eduard and Tamara Titlyanova (etitlyanov@mail.ru).

Digenea simplex (Wulfen) C.Agardh
Barrow Island, Western Australia. 25 May 2011. John Huisman. © John Huisman (j.huisman@murdoch.edu.au).

Digenea simplex (Wulfen) C.Agardh
Tanzania. Katrin Østerlund. © Katrin Oesterlund (Katrin.Osterlund@uadm.uu.se).

Digenea simplex (Wulfen) C.Agardh
Tanzania. Katrin Østerlund. © Katrin Oesterlund (Katrin.Osterlund@uadm.uu.se).

Digenea simplex (Wulfen) C.Agardh
KwaZulu-Natal. Tom Schils. © Tom Schils (tom@schils.be).

Digenea simplex (Wulfen) C.Agardh
Mbweni, Zanzibar; lower intertidal on sheltered back-reef. 05 Apr 2005. Michael Guiry. © Michael Guiry (mike.guiry@nuigalway.ie).

Digenea simplex (Wulfen) C.Agardh
Indian River Lagoon, Florida, USA. Littler, D.S., M.M. Littler and M.D. Hanisak (2008) Submersed Plants of the Indian River Lagoon: A Floristic Inventory and Field Guide. OffShore Graphics, Inc., Washington, DC, 298 pp. 584 distributed by Harbor B. Diane Littler. © Diane Littler (littlerd@si.edu).


Schizothrix muelleri Nägeli ex Gomont

Digenea simplex (Wulfen) C.Agardh Barrow Island, Western Australia
© J.M. Huisman

Publication details
Digenea simplex (Wulfen) C.Agardh 1822: 389

Published in: Agardh, C.A. (1822). Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis. Volumen primum pars posterior. pp. [v-vi], 169-398. Lundae [Lund]: ex officina Berlingiana.
 Download PDF

Publication date: probably Oct 1822

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

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

Conferva simplex Wulfen

Type information
Type locality: "Tergesti in Trunco fucorum, mari Adriatici" [Trieste, Italy] (Wulfen 1803: 17). Notes: Franz Xavier von Wulfen's (1728-1805) types are at W.

Origin of species name
Adjective (Latin), simple, undivided, unbranched, of one piece or series, not consisting of several distinct parts (Stearn 1985).

Homotypic Synonym(s)
Conferva simplex Wulfen 1803

Heterotypic Synonym(s)
Fucus lycopodium Turner 1811
Caulerpa lycopodium C.Agardh 1817
Cladostephus lycopodium (C.Agardh) C.Agardh 1824
Ceramium digenea Delle Chiaje 1829
Digenea lycopodium (C.Agardh) Hering 1835
Digenea wulfenii Kützing 1843
Digenea vieillardii Kützing 1865

Habitat notes
Known from the tropical and warm temperate Atlantic Ocean; in rock pools (Tittley et al. 2009). Widespread in warm seas. In Chondrophycus papillosus community, on rock flat gently sloping seawards (Lipkin & Silva 2002). - (25 Mar 2010) - Wendy Guiry

Common in exposed or sheltered areas of the intertidal, also subtidal, caespitose forming dense turfs (García-Soto & Lopez-Bautista, 2018). - (12 Nov 2018) - Wendy Guiry

General environment
This is a marine species.

Common names

(as Digenea simplex (Wulfen) C.Agardh)
Japanese: Makuri, Kaijinso (Arasaki & Arasaki 1983).

Common names used in commerce, often for edible algae
hai jen ts'ai {China}; tser koo ts'ai {China}; tse koo ts'oc {Cant}; kai-jin-so {Jap}

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.

Dawes, C.J. & Mathieson, A.C. (2008). The seaweeds of Florida. pp. [i]- viii, [1]-591, [592], pls I-LI. Gainesville, Florida: University Press of Florida.

Huisman, J.M. (2018). Algae of Australia. Marine benthic algae of north-western Australia. 2. Red algae. pp. [i]-xii, 1-672, 189 figs. Canberra & Melbourne: ABRS & CSIRO Publishing.

Huisman, J.M. (2019). Marine plants of Australia Revised edition. pp. [i]-xviii, [1]-435, numerous col. figs. Crawley Western Australia: UWA Publishing.

Lipkin, Y. & Silva, P.C. (2002). Marine algae and seagrasses of the Dahlak Archipelago, southern Red Sea. Nova Hedwigia 75(1-2): 1-90, 7 figs.

Manghisi, A., Miladi, R., Armelli Minicante, S., Genovese, G., Le Gall, L., Abdelkafi, S., Saunders, G.W. & Morabito, M. (2019). DNA barcoding sheds light on novel records in the Tunidian red algal flora. Cryptogamie Algologie 40(3): 13-34.

Nam, K.W. & Kang, P.J. (2012). Algal flora of Korea. Volume 4, Number 4. Rhodophyta: Ceramiales: Rhodomelaceae: 18 genera including Herposiphonia. pp. [1-6], 1-178, figs 1-102. Incheon: National Institute of Biological Resources.

Núñez Resendiz, M.L., Dreckmann, K.M., Sentíes, A., Wynne, M.J. Tejera, H.L. (2019). Marine red algae (Rhodophyta) of economic use in the algal drifts from the Yucatan Peninsula, Mexico. Phytotaxa 387(3): 219-240, 3 tables, 64 figs.

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..

Schneider, C.W., Hamzeh, B.F., Lane, C.E. & Saunders, G.W. (2018). A new species of Digenea (Rhodomelaceae, Ceramiales) based upon a molecular assessment and morphological observations of plants historically known as D. simplex in Bermuda. Phytotaxa 338(1): 90-98, 8 figs, 1 table.

Suárez, A.M., Martínez-Daranas, B. & Alfonso, Y. (2015). Macroalgas marinas de Cuba. pp. [1]-264, 229 figs. La Habana [Havana]: UH [Universidad de La Habana] Editorial.

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]

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..

Xia Bangmei [Xia, B.-M.] (2011). Flora algarum marinarum sinicarum Tomus II Rhodophyta No. VII Ceramiales Rhodomelaceae. pp. [i]-xxi, 1-212, pls I-XIII. Beijing: Science Press.

Created: 18 December 1997 by M.D. Guiry

Verified by: 08 March 2021 by M.D. Guiry

Accesses: This record has been accessed by users 17891 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.

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

Dreckmann, K.M. & Sentiés, A. (1994). El alga Digenea simplex (Ceramiales: Rhodomelaceae) en México: variación biogeográfica. Revista Biol. Tropical 42: 443-453.
Ferreira-Correia, M.M. (1969). Epífitas de Digenea simplex (Wulfen) C. Agardh, no Estado do Ceará (Rhodophyta: Rhodomelaceae). Arqs Ciênc. Mar., Fortaleza 9(1): 63-69, fig. 1-14, tab. 1.
Orfanidis, S. & Breeman, A.M. (1999). Geographic variation in thermal traits in Digenea simplex and Champia parvula (Rhodophyta) in relation to present and glacial temperature regimes. Journal of Phycology 35: 919-930, 9 figs, 4 tables.
Pakker, H., Klerk, H., van Campen, J.H., Olsen, J.L. & Breeman, A.M. (1996). Evolutionary and ecological differentiation in the pantropical to warm-temperate seaweed Digenea simplex (Rhodophyta). Journal of Phycology 32: 250-257, 6 figs, 2 tables.
Schneider, C.W., Hamzeh, B.F., Lane, C.E. & Saunders, G.W. (2018). A new species of Digenea (Rhodomelaceae, Ceramiales) based upon a molecular assessment and morphological observations of plants historically known as D. simplex in Bermuda. Phytotaxa 338(1): 90-98, 8 figs, 1 table.
Takano, R., Shiomoto, K., Kamei, K., Hara, S. & Hirase, S. (2003). Occurrence of carrageenan structure in an agar from the red seaweed Digenea simplex (Wulfen) C. Agardh (Rhodomelaceae, Ceramiales) with a short review of carrageenan-agarocolloid hybrid in the Florideophycidae. Botanica Marina 46: 142-150.
Tanaka, T. & Komiyama, T. (1954). On the development of young stages in Digenea simplex (Wulf.) C. Ag.??. : .

Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=1566

Citing AlgaeBase
Cite this record as:
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 07 May 2021.

SITE © 1996 - 2021 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio