| Genus: |
Sphacelaria Lyngbye in Hornemann |
|
Description: |
Thallus: as filamentous cushion-like tufts, also occurring as scattered filaments in mixed turf communities, 5-10 mm high, medium to dark brown; branching irregular, sparse. Filaments multiseriate, straight, cylindrical, 14-20(-30) µm diam. throughout, segments 2-3 diameters long, with 2-4 longitudinal walls; lateral hairs abundant, 10-18 µm diam., soon breaking off. Holdfast disc-like or stoloniferous; stolons to 30 µm diam. Propagules with 2 cylindrical arms; arms to 20 µm diam., 100-200(-300) µm long, of 5-9(-12) segments, with little to no taper; stalk 6-9(-13) segments long. Original publication: Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange... Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142 , [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.  Download PDF from Algaebase
|
| Name History |
Adjective (Latin), somewhat rigid (Stearn 1973). |
| Biogeography |
Worldwide: Atlantic, Pacific. |
| References |
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. Kraft, G.T. (2009). Algae of Australia. Marine benthic algae of Lord Howe Island and the southern Great Barrier Reef, 2. Brown algae. pp. [i-iv], v-vi, 1-364, 107 figs. Erratum of fig. 73 from vol. 1. Canberra & Melbourne: Australian Biological Resources Study and CSIRO Publishing. Lindeberg, M.R. & Lindstrom, S.C. (2010). Field guide to the seaweeds of Alaska. pp. [i-]iii-iv, 1-188, numerous col. photographs. Fairbanks: Alaska Sea Grant College Program. Norris, J.N. (2010). Marine algae of the Northern Gulf of California: Chlorophyta and Phaeophyceae. Smithsonian Contributions to Botany 94: i-x, 1-276. Pedroche, P.F., Silva, P.C., Aguilar Rosas, L.E., Dreckmann, K.M. & Aguilar Rosas, R. (2008). Catálogo de las algas benthónicas del Pacífico de México II. Phaeophycota. pp. [i-viii], i-vi, 15-146. Mexicali & Berkeley: Universidad Autónoma Metropolitana and University of California Berkeley. Prud'homme van Reine, W.F. (1982). A taxonomic revision of the European Sphacelariaceae (Sphacelariales, Phaeophyceae). Leiden Botanical Series 6: [i-x], 1-293, 660 figs, XXI tables, 6 plates. Skelton, P.A. & South, G.R. (2007). The benthic marine algae of the Samoan Archipelago, South Pacific, with emphasis on the Apia District. Nova Hedwigia Beihefte 132: 1-350. Womersley, H.B.S. (1987). The marine benthic flora of southern Australia. Part II. pp. 481, 169 figs, 1 table, 8 plates, 4 maps. Adelaide: South Australian Government Printing Division. |
| Habitat: |
Common: inconspicuous, on rock or other hard substrates, epizoic on hydroids, epiphytic on seagrasses or coarse algae; intertidal to 3 m deep. |
| Type information: |
Type locality: Nuweiba, Sinai, Red Sea (Lipkin & Silva 2002: 41). Holotype: W. Schimper; L 937.117.229 (Prud'homme van Reine 1982: 203). Notes: On Hormophysa cuneiformis (as Cystoseira triquetra) (Lipkin & Silva 2002). Womersley (1987: 166) gives the following data: Type from Red Sea, on Hormophysa triquetra (Schimper); Holotype in L, 937, 117...229; isotype in W, 19682. |
