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Description: |
Rough, densely tufted, purplish red fronds, to 150 mm long, repeatedly dichotomously branched, axils wide, apices strongly hooked inwards filaments of almost uniform diameter throughout. Articulations coritcated at nodes, 3-4 times as long as broad in lower parts, very short distally, with numerous, irregularly distibuted, colourless, unicellular, needle-like spines on corticating bands. Original publication: Agardh, J.G. (1844). In systemata algarum hodierna adversaria scripsit Jacobus Agardh, quae venia ampliss. facultatis philosophicae pro exercitio disputaturus defendet N. J. Wetterquist, Vestro-Gothus. In auditorio botanica die xxii maj. mdcccxliv. pp. Pars [1]: 22 Mai 1844 (date on cover, rd. by Regensburg Sep 1844), p. [i of cover], [i]-16. Pars [2]: 22 Mai 1844, resp. O. Nic. Hammar, p. [i], 17-32. Pars [3]: 22 Mai 1844, resp. C. O. N. Dahlgren, p. [i], 33-56. Lund: Berling.
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| Name History |
Adjective (Latin), from echis (Greek), an adder, and noton (Greek), a back |
| References |
Loiseaux-de Goër, S. & Noailles, M.-C. (2008). Algues de Roscoff. pp. [1]-215, col. figs. Roscoff: Editions de la Station Biologique de Roscoff. Maggs, C.A. & Hommersand, M.H. (1993). Seaweeds of the British Isles. Volume 1. Rhodophyta. Part 3A. Ceramiales. pp. xv + 444, 129 figs, map. London: HMSO. Skage, M., Gabrielsen, T.M. & Rueness, J. (2005). A molecular approach to investigate the phylogenetic basis of three widely used species groups in the red algal genus Ceramium (Ceramiales, Rhodophyta). Phycologia 44: 353-360. |
| Habitat: |
Marine species, on rocks and stones and epiphytic |
| Type information: |
Type information
Lectotype locality: Torquay (Maggs & Hommersand 1993: 57). Lectotype: [A.M.] Griffiths; September, 1837; LD 20792 (Maggs & Hommersand 1993: 57). |
