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Description: |
Thallus bushy, brown, often iridescent blue-green under water, erect, robust and stately; the flattened fronds show a branching pattern atypical for the genus: distinct main axes branch repeated-alterning, terminal forkings of the latitudinal axes turn into spur-like, 1-2 mm long, pointed or rounded tips (Braune & Guiry, 2011). Original publication: Kützing, F.T. (1859). Tabulae phycologicae; oder, Abbildungen der Tange. Vol. 9 pp. i-vii, 1-42, 100 pls. Nordhausen: Gedruckt auf kosten des Verfassers (in commission bei W. Köhne).
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| Name History |
(Latinised), named for Dr Mertens. |
| Biogeography |
Warm E Atlantic (Canary Is to Gabon); Caribbean; SW Pacific and Pacific Is. |
| References |
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. 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. De Clerck, O. (2003). The genus Dictyota in the Indian Ocean. Opera Botanica Belgica 13: 1-205, 54 figs, 12 tables. |
| Habitat: |
On rocks in shallow (about 2 m deep) water, in moderately wave-exposed sites in the intertidal, also in up to approx. 15 m depht. |
| Type information: |
Basionym: Ulva mertensii Martius Type locality: Salvador, Brazil (De Clerck 2003: 182). Lectotype: M? (De Clerck 2003: 182). |
