|
Description: |
Species description
A small red alga growing erect in tufts to 5cm in high. The main axis is polysiphonous and corticate with simple monosiphonous lateral branches arranged spirally around the main axes. Original publication: Harvey, W.H. (1833). Div. II. Confervoideae; Div. III. Gloiocladeae. In: The English Flora of Sir James Edward Smith. Class XXIV. Cryptogamia. Vol. V. (or Vol. II of Dr. Hooker's British flora). Part I. Comprising the Mosses, Hepaticae, Lichens, Characeae and Algae. (Hooker, W.J. Eds), pp. 263-265, 265-266, 326-389, 389-405. London: Longman, Brown, Green & Longmans Paternoster-Row.
 Download PDF Similar species
There are a number of similar small filamentous algae; microscopic examination is required for identification, especially from the other species of Dasya and Brongniartella byssoides. There are four species of Dasya in the British Isles, all of which are corticate and one of Brongniartella which is ecorticate. |
| Name History |
Adjective (Latin), marked with two-coloured spots, having the centre of one colour surrounded by a broad ring of another |
| References |
Agardh, C.A. (1811). Dispositio algarum Sueciae, quam publico examini subjiciunt Carl Adolph Agardh... & Johannes Bruzelius, Scanus. Die xi decembris mdcccxi. p. ii. h. & l.s. pp. Pars 2: [i], 17-26. Lund: Berling. 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. 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. Pena, V. & Bárbara, I. (2006). Revision of the genus Dasya (Ceramiales, Rhodophyta) in Galicia (NW Spain) and the addition of a new alien species Dasya sessilis Yamada for the European Alantic coasts. Anales del Jardin Botánico de Madrid 63(1): 13-26, 6 figs, 2 tables. |
| Habitat: |
Marine Species. Grows epiphytically and epilithically on shaded rock to a depth of 20m on moderately exposed coasts |
| Type information: |
Status of name
This name is of an entity that is currently accepted taxonomically. Basionym
Ceramium ocellatum Grateloup Type information
Type locality: Sète, Hérault, France (Silva, Basson & Moe 1996: 437). Lectotype: unlocalised, undated Grateloup specimen; LD 43847 (Maggs & Hommersand 1993: 275). |
![Download 'Dasya ocellata - Harvey’s original illustration (Phycologia Britannica)' [Visivel]](/macoi/intra/imagens/download.gif "Download 'Dasya ocellata - Harvey’s original illustration (Phycologia Britannica)' [Visivel]")