APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland.

Brown seaweed / algae images (Ochrophyta)
Phaeophyceae (Class) > Cutleriales (Order) > Cutleriaceae (Family)

Cutleria
Cutleria multifida (Turner) Greville, 1830
- Cutler's Many Cleft Weed - sexual Cutleria phase

Cutleria multifida (Turner) Greville, 1830
- Cutler's Many Cleft Weed - asexual Aglaozonia phase

Phaeophyceae (Class) > Desmarestiales (Order) > Desmarestiaceae (Family)

Desmarestia
Desmarestia aculeata (Linnaeus) J.V.Lamouroux, 1813
- Desmarest's Prickly Weed or Landladies' Wig

Desmarestia ligulata (Stackhouse) J.V.Lamouroux, 1813
- Desmarest's Flattened Weed

Desmarestia viridis (O.F.Müller) J.V.Lamouroux, 1813
- Desmarest's Green Weed

Phaeophyceae (Class) > Dictyotales (Order) > Dictyotaceae (Family) > Dictyoteae (Tribe)

Dictyota
Dictyota dichotoma (Hudson) J.V.Lamouroux, 1809
- Divided Net Weed or Brown Fan Weed

Phaeophyceae (Class) > Dictyotales (Order) > Dictyotaceae (Family) > Zonarieae (Tribe)

Dictyopteris
Dictyopteris polypodioides (A.P.De Candolle) J.V.Lamouroux 1809 - Netted Wing Weed

Padina
Padina pavonica (Linnaeus) Thivy, 1960
- Peacock's Tail

Taonia
Taonia atomaria (Woodward) J.Agardh, 1848
- Dotted Peacock Weed

Phaeophyceae (Class) > Ectocarpales (Order) > Acinetosporaceae (Family)

Feldmannia
Feldmannia simplex (P.L.Crouan & H.M.Crouan) G.Hamel, 1939 ? - A brown seaweed

Hincksia
Hincksia granulosa (Smith) P.C.Silva, 1987 ?
- A brown seaweed

Hincksia hincksiae (Harvey) P.C.Silva, 1987
- A brown seaweed

Pylaiella
Pylaiella littoralis (Linnaeus) Kjellman, 1872
- Sea Felt or Pylaie's Brown Filaments

Phaeophyceae (Class) > Ectocarpales (Order) > Chordariaceae (Family)

Asperococcus
Asperococcus bullosus J.V.Lamouroux, 1813
- Fat Sausage Weed

Asperococcus fistulosus (Hudson) W.J.Hooker, 1833
- Thin Sausage Weed

Chilionema
Chilionema ocellatum (Kützing) Kornmann, 1953
- A brown seaweed

Elachista
Elachista flaccida (Dillwyn) Fries, 1835
- A Brown seaweed

Elachista fucicola (Velley) Areschoug, 1842
- Tiny Wrack Bush, an epithyte of Saw Wrack

Elachista scutulata (Smith) Areschoug, 1843 - A brown seaweed, and an epithyte of Thongweed

Eudesme
Eudesme virescens (Carmichael ex Berkeley) J.Agardh, 1882 - A brown seaweed

Leathesia
Leathesia marina (Lyngbye) Decaisne, 1842
- Sea Balls, Sea Cauliflower or Punctured Ball Weed

Litosiphon
Litosiphon laminariae (Lyngbye) Harvey, 1849
- A brown seaweed

Mesogloia
Mesogloia vermiculata (Smith) S.F.Gray, 1821
- A brown seaweed

Myriactula
Myriactula rivulariae (Suhr ex Areschoug) Feldmann, 1937
- A brown seaweed

Myrionema
Myrionema strangulans Greville, 1827 - A brown seaweed

Myriotrichia
Myriotrichia claviformis Harvey, 1834
- An epiphyte of Scytosiphon lomentaria

Phaeophyceae (Class) > Ectocarpales (Order) > Ectocarpaceae (Family)

Ectocarpus
Ectocarpus fasciculatus Harvey, 1841 - A brown seaweed

Spongonema
Spongonema tomentosum (Hudson) Kützing, 1849
- Lamb's Tails

Phaeophyceae (Class) > Fucales (Order) > Fucaceae (Family)

Ascophyllum
Ascophyllum nodosum (Linnaeus) Le Jolis, 1863
- Knotted Wrack or Egg Wrack

Ascophyllum nodosum ecad mackaii (Turner) S.M. Baker & M.H. Bohling - Free-floating Knotted Wrack

Fucus
Fucus ceranoides Linnaeus, 1753 - Horned Wrack
Fucus guiryi G.I.Zardi, K.R.Nicastro, E.S.Serrão
& G.A.Pearson in Zardi et al. 2011 - Guiry's Wrack

Fucus serratus Linnaeus, 1753
- Serrated, Saw, Saw-edged or Toothed Wrack

Fucus spiralis Linnaeus, 1753 - Spiraled Wrack
Fucus vesiculosus Linnaeus, 1753
- Bladder Wrack or Black Tang

Fucus vesiculosus var. linearis (Hudson) Kützing, 1849
- Bladder Wrack or Black Tang

Pelvetia
Pelvetia canaliculata (Linnaeus) Decaisne & Thuret, 1845
- Channel or Channelled Wrack

Phaeophyceae (Class) > Fucales (Order) > Himanthaliaceae (Family)

Himanthalia
Himanthalia elongata (Linnaeus) S.F.Gray, 1821
- Thong Weed or Sea Thong

Phaeophyceae (Class) > Fucales (Order) > Sargassaceae (Family)

Bifurcaria
Bifurcaria bifurcata R.Ross, 1958
- Brown Tuning Fork Weed or Brown Forking Weed

Cystoseira
Cystoseira baccata (S.G.Gmelin) P.C.Silva, 1952
- Bushy Berry Wrack

Cystoseira nodicaulis (Withering) M.Roberts, 1967
- Bushy Noduled Wrack

Cystoseira tamariscifolia (Hudson) Papenfuss, 1950
- Bushy Rainbow Wrack or Rainbow Bladder Weed

Halidrys
Halidrys siliquosa (Linnaeus) Lyngbye, 1819
- Sea Oak or Pod Weed

Sargassum
Sargassum muticum (Yendo) Fensholt, 1955
- Wireweed or Japweed (Non-native)

Phaeophyceae (Class) > Laminariales (Order) > Alariaceae (Family)

Alaria
Alaria esculenta (Linnaeus) Greville, 1830
- Dabberlocks, Badderlocks or Murlins

Undaria
Undaria pinnatifida (Harvey) Suringar, 1873
- Wakame (non-native invasive)

Phaeophyceae (Class) > Laminariales (Order) > Chordaceae (Family)

Chorda
Chorda filum (Linnaeus) Stackhouse, 1797 - Bootlace Weed, Sea Lace, Dead Man's Rope or Mermaid's Tresses

Phaeophyceae (Class) > Laminariales (Order) > Laminariaceae (Family)

Laminaria
Laminaria digitata (Hudson) J.V.Lamouroux, 1813
- Oar Weed or Tangle

Laminaria hyperborea (Gunnerus) Foslie, 1884
- Forest or Northern Kelp, Tangle or Cuvie

Laminaria ochroleuca Bachelot de la Pylaie, 1824
- Golden Kelp

Saccharina
Saccharina latissima (Linnaeus) C.E.Lane,
C.Mayes, Druehl & G.W.Saunders, 2006
- Sea Belt, Sugar Kelp or Sugar Tangle

Phaeophyceae (Class) > Scytosiphonales (Order) > Scytosiphonaceae (Family)

Colpomenia
Colpomenia peregrina Sauvageau, 1927 - Oyster Thief

Petalonia
Petalonia fascia (O.F.Müller) Kuntze, 1898
- Sea Petals or Broad Leaf Weed

Petalonia zosterifolia (Reinke) Kuntze, 1898 ?
- A brown seaweed

Scytosiphon
Scytosiphon lomentaria (Lyngbye) Link, 1833
- Beanweed, Sausage Weed or Chipolata Weed

Phaeophyceae (Class) > Sphacelariales (Order) > Cladostephaceae (Family)

Cladostephus
Cladostephus spongiosus (Hudson) C.Agardh, 1817
- Hairy Sand Weed

Phaeophyceae (Class) > Sphacelariales (Order) > Sphacelariaceae (Family)

Sphacelaria
Sphacelaria cirrosa (Roth) C.Agardh, 1824
- A Small Brown Feather Weed

Sphacelaria species - A Small Brown Feather Weed

Phaeophyceae (Class) > Sphacelariales (Order) > Stypocaulaceae (Family)

Halopteris
Halopteris filicina (Grateloup) Kützing, 1843
- Sea Fern Weed

Halopteris scoparia (Linnaeus) Sauvageau, 1904
- Sea Flax Weed

Phaeophyceae (Class) > Tilopteridales (Order) > Phyllariaceae (Family)

Saccorhiza
Saccorhiza polyschides (Lightfoot) Batters, 1902
- Furbelows or Sea Furbelows

Phaeophyceae (Class) > Tilopteridales (Order) > Tilopteridaceae (Family)

Tilopteris
Tilopteris mertensii (Turner) Kützing, 1849
- A brown seaweed

Many thanks to Professor Michael Guiry for his help in identifying some of the seaweeds featured on this page.
Michael Guiry's Seaweed Website

Other people have also provided advice about the algae on this page and numerous reference books have been used.

These include -

Seaweeds of Britain and Ireland (Seasearch) by Francis Bunker, Christine Maggs, Juliet Brodie and Anne Bunker. Published by Wild Nature Press

Volumes of Seaweeds of the British Isles by the Natural History Museum

Seaweeds by W. Braune and M. D. Guiry

Brown Seaweed Algae Images Ochrophyta UK