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Osmundea pinnatifida (Hudson) Stackhouse 1809

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


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Osmundea pinnatifida (Hudson) Stackhouse
Spiddal, Co. Galway, Ireland; yellowed by exposure to sun. 19 Jun 2020. M.D. Guiry. © M.D. Guiry.

Osmundea pinnatifida (Hudson) Stackhouse
Cape Clear Island, Co. Cork, Ireland. 24 Jun 2015. Ger Morgan. © Ger Morgan.

Osmundea pinnatifida (Hudson) Stackhouse
Cape Clear Island, Co. Cork, Ireland. 24 Jun 2015. Ger Morgan. © Ger Morgan.

Osmundea pinnatifida (Hudson) Stackhouse
Osmundea pinnatifida, lower intertidal, North of Portugal, 2013, Ignacio Bárbara. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Osmundea pinnatifida (Hudson) Stackhouse
lower intertidal, Ría de A Coruña, Galicia, Spain, 2012. 01 Jan 0001. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Osmundea pinnatifida (Hudson) Stackhouse
Spiddal, Co. Galway, Ireland; on limpet with Ceramium and other filamentous algae. 03 Apr 2011. M.D. Guiry (mike.guiry@nuigalway.ie). © M.D. Guiry.

Osmundea pinnatifida (Hudson) Stackhouse
Selce, northern Croatia. 26 Mar 2011. Mat Vestjens & Anne Frijsinger. © Mat Vestjens & Anne Frijsinger (annenmat@natuurlijkmooi.net).

Osmundea pinnatifida (Hudson) Stackhouse
Osmundea pinnatifida turf, Spanish Point, Co. Clare, Ireland; turf-forming plants. 28 Aug 2010. M.D. Guiry. © Michael Guiry (mike.guiry@nuigalway.ie).

Osmundea pinnatifida (Hudson) Stackhouse
Osmundea pinnatfida, Fountainstown, Co. Cork. 25 Aug 2010. M.D. Guiry" . © Michael Guiry (mike.guiry@nuigalway.ie).

Osmundea pinnatifida (Hudson) Stackhouse
Osmundea pinnatfida, Fountainstown, Co. Cork. 25 Aug 2010. M.D. Guiry" . © Michael Guiry (mike.guiry@nuigalway.ie).

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Myriactula clavata (Takamatsu) Feldmann

Osmundea pinnatifida (Hudson) Stackhouse Muigh Inis, Co. Galway, Ireland; on rock
© Michael Guiry (mike.guiry@nuigalway.ie)

Publication details
Osmundea pinnatifida (Hudson) Stackhouse 1809: 79

Published in: Stackhouse, J. (1809). Tentamen marino-cryptogamicum, ordinem novum; in genera et species distributum, in Classe XXIVta Linnaei sistens. Mémoires de la Société Imperiale des Naturalistes de Moscou 2: [50]-97.
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Type species
The type species (lectotype) of the genus Osmundea is Osmundea expansa Stackhouse.

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

Fucus pinnatifidus Hudson

Type information
Type locality: Harwich, Essex, England (Silva & al. 1996: 534). Notes: This type locality was first recorded by Maggs & Hommersand (1993: 403, footnote).

Origin of species name
Adjective (Latin), pinnately cleft (Stearn 1985).

Homotypic Synonym(s)
Fucus pinnatifidus Hudson 1762
Sphaerococcus pinnatifidus (Hudson) Stackhouse 1797
Laurencia pinnatifida (Hudson) J.V.Lamouroux 1813
Gelidium pinnatifidum (Hudson) Lyngbye 1819
Chondria pinnatifida (Hudson) C.Agardh 1822

Heterotypic Synonym(s)
Pinnatifida vulgaris Stackhouse 1816

Distributional notes
Most Mediterranean records of this species (either as Osmundea pinnatifida and Laurencia pinnatifida) must be referred to Osmundea truncata (Nam, Maggs, McIvor & Stanhope, 2000). The only confirmed record of O. pinnatifida in the Mediterranean Sea is by Boisset et al. (1995) for the Alboran Sea (Furnari et al., 1999). "Early records from Ghana and São Tomé (as Laurencia pinnatifida) should be almost certainly discounted since the material upon which they are based most probably relates to the tropical Laurencia brongniartii." (John et al., 2004). A tropical record of this species (Papua New Guinea, Littler & Littler, 2003) is a misapplied name for Chondria ryukyuensis Yamada, which also occurs in nearby Solomon Islands (N'Yeurt & Payri, unpub. data).

General environment
This is a marine species.

Common names

(as Osmundea pinnatifida (Hudson) Stackhouse)
English: Pepper Dulse (Bunker & al. 2010).

Portuguese: Botelho-preto, Argacinho-das-lapas (Oliveira, 1990).

(as Laurencia pinnatifida (Hudson) J.V.Lamouroux)
English: Prickly tang (Ohmi 1968), Pepper Dulse (Chapman & Chapman 1980).

Gaeilge: Máthair an Duillise, Derida, Griabhán (Brennan 1950), Míobhán, Uisce beatha (Anonymous 1978).

Common names used in commerce, often for edible algae
; "dulse, pepper"

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.

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

Machín-Sánchez, M., Gil-Rodríguez, M. & Haroun, R. (2018). Phylogeography of the red algal Laurencia complex in the Macaronesia region and nearby coastal areas: recent Advances and future perspectives. Diversity 10: 1-21, 2 figs.

Machín-Sánchez, M., Rousseau, F., Le Gall, L., Cassano, V., Neto, A.I., Sentíes, A., Fujii, M.T. & Gil-Rodríguez, M.C. (2016). Species diversity of the genus Osmundea (Ceramiales, Rhodophyta) in the Macaronesian region. Journal of Phycology 52(4): 664-681.

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.

Nam, K.W., Maggs, C.A. & Garbary, D.J. (1994). Resurrection of the genus Osmundea with an emendation of the generic delineation of Laurencia (Ceramiales, Rhodophyta). Phycologia 33(5): 384-395, 38 figs, 3 tables.

Serio, D., Petrocelli, A., Cormaci, M., Cecere, E. & Furnari, G. (2008). First record of Osmundea oederi (Gunnerus) G. Furnari comb. nov. (Rhodomelaceae, Rhodophyta) from the Mediterranean Sea. Cryptogamie, Algologie 29: 119-127.

Wynne, M.J., Serio, D., Cormaci, M. & Furnari, G. (2005). The species of Chondrophycus and Laurencia (Rhodomelaceae, Ceramiales) occurring in Dhofar, the Sultanate of Oman. Phycologia 44: 497-509.

Created: 31 March 1996 by M.D. Guiry

Verified by: 10 February 2018 by M.D. Guiry

Accesses: This record has been accessed by users 17938 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.)

Boisset, F., Lino, J.C. & Gil-Rodríguez, M.C. (1995). Osmundea pinnatifida (Hudson) Stackhouse y Osmundea sp. (Ceramiales, Rhodophyta) en el Mar Mediterráneo. In: XI Simposio Nacional de Botánico Criptogámica. ( Eds), pp. 21-22.
Schnetter, R., Gil-Rodríguez, M.C., Medina, M., Döring, J., Henne, K.-D. & Hernández-González, M.C. (2000). Distinction of gametophytes and tetrasporophytes by microfluorometry in Osmundea pinnatifida (Rhodophyta) from Canary Islands. Phycologia 39: 147-152.
Silva, P. & Pereira, L. (2020). Concise review of Osmundea pinnatifida (Hudson) Stackhouse. Journal of Applied Phycology 32: 2761–2771, 3 fig., 1 table.

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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.

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