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Description: |
Rather soft, cylindrical, dull purplish pink fronds, 3 mm wide, to 600 mm long. Branches numerous, alternate, branchlets tapered at both ends. Branches sometimes drawn out into long twisting tendrils. Multiaxial, medulla a cordlike strand of loosely interwoven, narrow filaments, surrounded by large, rounded cells, with outer layer of small, angular, assimilatory cells. Said to have an onion-like smell shortly after collection. Original publication: Batters, E.A.L. (1902). A catalogue of the British marine algae. Journal of Botany, British and Foreign 40(Supplement): 1-107.
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| Name History |
Adjective (Latin), purple (Stearn 1973). |
| Biogeography |
N Atlantic (artic Canada to Spain); North Sea (Helgoland); Baltic, Mediterranean (Greece), Indian Ocean (Pakistan), Australia (Queensland). |
| Uses and compounds |
Source of Carrageenan (Braune & Guiry, 2011). Usage notes: Nematicidal activity (Abid et al. 2005). |
| References |
Dixon, P.S. & Irvine, L.M. (1977). Seaweeds of the British Isles. Volume 1. Rhodophyta. Part 1. Introduction, Nemaliales, Gigartinales. pp. xi + 252, 90 figs. London: British Museum (Natural History). Molenaar, F.J., Breeman, A.M. & Venekamp, L.A.H. (1996). Ecotypic variation in Cystoclonium purpureum (Rhodophyta) synchronizes life history events in different regions. Journal of Phycology 32: 516-525, 4 figs, 6 tables. Reani, A., Cosson, J., Parker, A. & Zaoui, D. (1998). Influence of culture conditions on growth and rheological properties of carrageenans in Cystoclonium purpureum (Huds.) Batters. Botanica Marina 41: 299-304, 8 figs, 1 table. Reani, A., Cosson, J., Parker, A. & Zaoui, D. (1998). Seasonal variation of growth carrageenan content and rheological properties of Cystoclonium purpureum (Huds.) Batters (Rhodophyta, Cystocloniaceae) from the Calvados Coast (France). Botanica Marina 41: 383-387. Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, 266 pls. Ruggell: A.R.G. Gantner Verlag. Loiseaux-de Goër, S. & Noailles, M.-C. (2008). Algues de Roscoff. pp. [1]-215, col. figs. Roscoff: Editions de la Station Biologique de Roscoff. |
| Habitat: |
Marine species, on rocks and stones intertidally and in shallow subtidal, generally distributed, abundant. |
| Type information: |
Basionym: Fucus purpureus Hudson Type locality: presumably England (Silva, Basson & Moe 1996: 286). |
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