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Authority: |
(J.V.Lamouroux) Womersley ex E.C.Oliveira |
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Description: |
Brown to orange prostrate thallus. Blades fan shaped and overlapping; comprised of a medullary layer (1 cell thick) surrounded by a cortex (2-3 cells thick). Number of outer cortical cells may be different on two different blade surfaces. Surface hairs random or in concentric lines. Thin, fan-shaped blades encrusting the substrate, often overlapping in a shingle-like pattern. Shades of green-brown to tan to brown. These algae occur in orange brown to dark brown in colour and bear a leathery feel. The blades may appear as fan-shaped, flabellate or as crusts. They are often tightly adhered to the substrate. Those found on the higher intertidal area are harder and crisper than those found lower on the shore. |
| Name History |
Adjective (Latin), variegated. |
| Biogeography |
Florida, Bahamas, Greater Antilles, Lesser Antilles, Southern Caribbean, Western Caribbean, Gulf of Mexico, Greece, Portugal, Spain, Italy, Caribbean Islands, Venezuela Panama, Colombia, Costa Rica, Venezuela, Africa, Indian Ocean, Japon, Taiwan, Indonesia, Vietnam, Suroeste de Asia, Australia, New Zealand, Central Pacific Islands. |
| Uses and compounds |
Antiinflammatory activity - Two new antiinflammtory macrolides, lopophorins A 142 and B 143 have been isolated from the fermented broths of a marine bacterium isolated from the surface of the brown alga Lobophora variegata. Antifungal activity - Lobophorolide was isolated from the common brown alga Lobophora variegate and displayed a potent and highly specific activity against the marine filamentous fungi Dendroyphiella salina and Lindra thalassiae and a potent activity against C. albicans and antineoplastic (Kubanek et al., 2003). |
| 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. 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. 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. 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. (1967). A critical survey of the marine algae of southern Australia. II. Phaeophyta. Australian Journal of Botany 15: 189-270, 6 figs. 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: |
Grow in most reef environments, encrusting great areas of shaded, rocky substrates. Especially abundant on undercut wall faces along deep drop-offs. Blades surfaces often covered with sediment and enc |
| Type information: |
Basionym: Dictyota variegata J.V.Lamouroux Type locality: Antilles, West Indies (Silva, Basson & Moe 1996: 598). Type: CN (Yoshida 1998: 223). Notes: De Clerck (2003: 186) notes that lectotypification was established by Womersley (1967: 221-222) and that the type is located in CN (C7F100). According to Womersley (1987: 255), the type of Lobophora variegata 1967 was collected by Richard; he does not cite Dictyota variegata. In Womersley (1967: 221) Zonaria variegata is cited [=Z. variegata (Lamouroux) C. Agardh 1817 ?]. |
