Marine Makroalgen (marine Chlorophyta, Phaeophyceae & Rhodophyta)

German Red List

Schories, D.; Kuhlenkamp, R.; Schubert, H. & Selig, U. (2013): Rote Liste und Gesamtartenliste der marinen Makroalgen (Chlorophyta, Phaeophyceae et Rhodophyta) Deutschlands. – In: Becker, N., Haupt, H., Hofbauer, N., Ludwig, G. & Nehring, S. (Bearb.): Rote Liste gefährdeter Tiere, Pflanzen und Pilze Deutschlands. Band 2: Meeresorganismen. – Bonn (Bundesamt für Naturschutz). – Naturschutz und Biologische Vielfalt 70 (2): 179–229.

 

Comment: The German national Red List threat categories do not correspond with the international IUCN categories.

Checklist

Scientific name German name Red List Category
A
Acinetospora crinita (Carmich. ex Harv.) Kornmann 1953 Least concern
Acrochaete elegans Not established
Acrochaete flustrae (Reinke) O'Kelly 2006 Least concern
Acrochaete repens Pringsh. 1863 Least concern
Acrochaete wittrockii (Wille) R. Nielsen 1983 Least concern
Acrochaetium balticum (Rosenv.) Aleem & Schulz 1952 Data deficient
Acrochaetium efflorescens (J. Agardh) Nägeli 1861 Least concern
Acrochaetium kylinii Hamel 1927 Not established
Acrochaetium minimum Collins 1908 Data deficient
Acrochaetium moniliforme (Rosenv.) Børgesen 1915 Data deficient
Acrochaetium parvulum (Kylin) Hoyt 1920 Data deficient
Acrochaetium reductum (Rosenv.) Hamel 1927 Data deficient
Acrochaetium rosulatum (Rosenv.) Papenf. 1945 Data deficient
Acrochaetium secundatum (Lyngb.) Nägeli 1862 Least concern
Acrochaetium seiriolanum (R.J.H. Gibson) Rosenv. 1924 Threatened to an unkown extent
Acrochaetium virgatulum (Harv.) Batters 1902 Least concern
Acrosiphonia arcta (Dillwyn) Gain 1912 Zweigfadenalge Data deficient
Acrosiphonia sonderi (Kütz.) Kornmann 1962 Data deficient
Acrosiphonia spinescens (Kütz.) Kjellm. 1883 Data deficient
Actinema scutellum Reinsch 1875 Data deficient
Aegagropila linnaei Kütz. 1843 Data deficient
Aglaothamnion hookeri (Dillwyn) Maggs & Hommers. 1993 Least concern
Aglaothamnion roseum (Roth) Maggs & L'Hardy-Halos 1993 Threatened to an unkown extent
Aglaothamnion tenuissimum (Bonnem.) Feldm.-Maz. 1941 Least concern
Ahnfeltia plicata (Huds.) Fr. 1836 Faltentang Threatened to an unkown extent
Antithamnion cruciatum (C. Agardh) Nägeli 1847 Kreuzförmiges Antithamnion Extinct in Germany
Antithamnionella floccosa (O.F. Müll.) Whittick 1980 Rare
Aphanochaete repens A. Braun 1849 Extinct in Germany
Apoglossum ruscifolium (Turner) J. Agardh 1898 Extinct in Germany
Arthrocladia villosa (Huds.) Duby 1830 Zottentang Extinct in Germany
Ascophyllum nodosum (L.) Le Jol. 1863 Knotentang Least concern
Asperococcus fistulosus (Huds.) Hook. 1833 Data deficient
B
Bangia fuscopurpurea (Dillwyn) Lyngb. 1819 Threatened to an unkown extent
Binuclearia lauterbornii (Schmidle) Proschk.-Lavr. 1966 Least concern
Blastophysa rhizopus Reinke 1889 Least concern
Blidingia chadefaudii (Feldmann) Bliding 1963 Rare
Blidingia marginata (J. Agardh) P.J.L. Dang. ex Bliding 1963 Least concern
Blidingia minima (Nägeli ex Kütz.) Kylin 1947 Kleiner Darmtang Least concern
Blidingia subsalsa (Kjellman) Kornmann & Sahling ex Scagel & al. 1989 Data deficient
Bolbocoleon piliferum Pringsh. 1862 Data deficient
Bonnemaisonia hamifera Har. 1891 Data deficient
Botryoglossum platycarpum (Turner) Kütz. 1843 Data deficient
Botrytella micromora Bory 1822 Data deficient
Botrytella reinboldii (Reinke) Kornmann & Sahling 1988 Data deficient
Brongniartella byssoides (Gooden. & Woodw.) F. Schmitz 1893 Threatened to an unkown extent
Bryopsis hypnoides J.V. Lamour. 1809 Least concern
Bryopsis lyngbyei Hornem. 1818 Data deficient
Bryopsis plumosa (Huds.) C. Agardh 1823 Grüner Federtang Least concern
C
Callithamnion corymbosum (Sm.) Lyngb. 1819 Doldentraubiges Callithamnion Threatened to an unkown extent
Callithamnion repens (Dillwyn) Lyngb. 1819 Data deficient
Callithamnion tetricum (Dillwyn) Gray 1821 Extinct in Germany
Capsosiphon fulvescens (C. Agardh) Setch. & N.L. Gardner 1920 Least concern
Ceramium deslongchampsii Chauv. ex Duby 1830 Least concern
Ceramium diaphanum (Lightf.) Roth 1806 Least concern
Ceramium echionotum J. Agardh 1844 Threatened to an unkown extent
Ceramium gracillium Griff. & Harvey Not established
Ceramium siliquosum (Kütz.) Maggs & Hommers. 1993 Data deficient
Ceramium tenuicorne (Kütz.) Waern 1952 Least concern
Ceramium virgatum Roth 1797 Roter Horntang Least concern
Ceratocolax hartzii Rosenv. 1898 Data deficient
Chaetomorpha ligustica (Kütz.) Kütz. 1849 Least concern
Chaetomorpha linum (O.F. Müll.) Kütz. 1845 Least concern
Chaetomorpha melagonium (F. Weber & D. Mohr) Kütz. 1845 Least concern
Chilionema ocellatum (Kütz.) Kornmann 1953 Data deficient
Chlorochytrium cohnii E.P. Wright 1877 Data deficient
Chlorochytrium dermatocolax Reinke 1889 Data deficient
Chondria dasyphylla (Woodw.) C. Agardh 1817 Extinct in Germany
Chondrus crispus Stackh. 1797 var. crispus Knorpeltang Least concern
Chorda filum (L.) Stackh. 1797 Meersaite Least concern
Chordaria flagelliformis (O.F. Müll.) C. Agardh 1817 Geißeltang Data deficient
Chroodactylon ornatum (C. Agardh) Basson 1979 Data deficient
Cladophora albida (Nees) Kütz. 1843 Least concern
Cladophora cristata Kütz. 1843 Data deficient
Cladophora dalmatica Kütz. 1843 Data deficient
Cladophora fracta (O.F. Müll. ex Vahl) Kütz. 1843 var. fracta Data deficient
Cladophora fracta var. intricata (Lyngb.) C. Hoek 1963 Data deficient
Cladophora glomerata (L.) Kütz. 1843 Seidige Cladophora Data deficient
Cladophora laetevirens (Dillwyn) Kütz. 1843 Data deficient
Cladophora lehmanniana (Lindenb.) Kütz. 1843 Data deficient
Cladophora pygmaea Reinke 1888 Data deficient
Cladophora rupestris (L.) Kütz. 1843 Felsen-Zweigfadenalge Least concern
Cladophora sericea (Huds.) Kütz. 1843 Least concern
Cladophora vagabunda (L.) C. Hoek 1963 Data deficient
Cladosiphon zosterae (J. Agardh) Kylin 1940 Least concern
Cladostephus spongiosus (Huds.) C. Agardh 1817 Rare
Cladostephus verticillatus (Lightf.) Lyngb. 1819 Data deficient
Coccotylus truncatus (Pall.) M.J. Wynne & J.N. Heine 1992 Gemeine Phyllophora Least concern
Codiolum gregarium A. Braun 1855 Data deficient
Codium fragile (Suringar) Har. 1889 Least concern
Colaconema daviesii (Dillwyn) Stegenga 1985 Data deficient
Colaconema emergens (Rosenv.) R. Nielsen 1994 Data deficient
Colaconema hallandicum (Kylin) Afonso-Car. & al. 2007 Data deficient
Colaconema membranaceum (Magnus) Woelk. 1973 Data deficient
Colaconema nemalionis (De Not. ex L. Dufour) Stegenga 1985 Least concern
Compsonema saxicola (Kuck.) Kornmann 1953 Data deficient
Corallina officinalis L. 1758 Offizinelles Korallenmoos Least concern
Corynophlaea crispa (Harv.) Kuck. 1929 Extinct in Germany
Cruoria pellita (Lyngb.) Fr. 1835 Critically endangered
Cutleria multifida (Turner) Grev. 1830 Gabeltang Extinct in Germany
Cystoclonium purpureum (Huds.) Batters 1902 Purpurtang Least concern
D
Dasya baillouviana (S.G. Gmel.) Mont. 1841 Least concern
Delesseria sanguinea (Huds.) J.V. Lamour. 1813 Blutroter Seeampfer Least concern
Derbesia marina (Lyngb.) Kjellman 1883 Büschelalge Rare
Desmarestia aculeata (L.) J.V. Lamour. 1813 Stacheltang Least concern
Desmarestia viridis (O.F. Müll.) J.V. Lamour. 1813 Federige Desmarestia Least concern
Dictyosiphon chordaria Aresch. 1847 Threatened to an unkown extent
Dictyosiphon foeniculaceus (Huds.) Grev. 1830 Endangered
Dictyota dichotoma (Huds.) J.V. Lamour. 1809 Gabelzunge Rare
Dudresnaya verticillata (With.) Le Jol. 1863 Rare
Dumontia contorta (S.G. Gmel.) Rupr. 1850 Wurmblatt Least concern
E
Ectocarpus fasciculatus Harv. 1841 var. fasciculatus Data deficient
Ectocarpus siliculosus (Dillwyn) Lyngb. 1819 var. siliculosus Felsen-Faseralge Least concern
Ectocarpus siliculosus var. dasycarpus (Kuck.) T. Gallardo 1992 Data deficient
Ectocarpus tomentosus (Huds.) Lyngb. 1819 Data deficient
Elachista fucicola (Velley) Aresch. 1842 Near threatened
Elachista stellaris Aresch. 1842 Extinct in Germany
Enteromorpha flexuosa subsp. linziformis (Bliding) Bliding 1963 Least concern
Epicladia perforans (Huber) R. Nielsen 1980 Extinct in Germany
Epicladia phillipsii (Batters) R. Nielsen 1984 Least concern
Epicladia testarum (Kylin) R. Nielsen 1980 Least concern
Erythrocladia elegans Not established
Erythrocladia irregularis Rosenv. 1909 Data deficient
Erythrocladia reflexa Not established
Erythrodermis traillii (Holmes ex Batters) Guiry & Garbary 1990 Data deficient
Erythropeltis discigera (Berthold) F. Schmitz 1896 Data deficient
Erythrotrichia carnea (Dillwyn) J. Agardh 1883 Least concern
Erythrotrichia reflexa (P. Crouan & H. Crouan) Thur. ex De Toni 1897 Rare
Eudesme virescens (Carmich. ex Berk.) J. Agardh 1880 Vulnerable
Eugomontia sacculata Kornmann 1960 Least concern
F
Fucus ceranoides L. 1753 Data deficient
Fucus evanescens C. Agardh 1820 Least concern
Fucus serratus L. 1753 Sägetang Threatened to an unkown extent
Fucus spiralis L. 1753 Spiraltang Least concern
Fucus vesiculosus L. 1753 f. vesiculosus Blasentang Near threatened
Fucus vesiculosus f. mytili (Nienb.) Nienhuis 1970 Vulnerable
Furcellaria lumbricalis (Huds.) J.V. Lamour. 1813 Gabeltang Least concern
G
Gayralia oxysperma (Kütz.) K.L. Vinogr. ex Scagel & al. 1989 Data deficient
Giraudia sphacelarioides Derbès & Solier 1851 Data deficient
Gloiosiphonia capillaris (Huds.) Carmich. 1833 Rare
Gomontia polyrhiza (Lagerh.) Bornet & Flahault 1888 Least concern
Gracilaria gracilis (Stackh.) Steentoft & al. 1995 Besentang Rare
Gracilaria vermiculophylla (Ohmi) Papenf. 1967 Least concern
Gracilariopsis longissima (S.G. Gmel.) Steentoft & al. 1995 Rare
Gymnogongrus crenulatus (Turner) J. Agardh 1851 Data deficient
H
Haemescharia hennedyi (Harv.) K.L. Vinogr. & Yacovleva 1989 Data deficient
Halarachnion ligulatum (Woodw.) Kütz. 1843 Gefranster Spinnentang Least concern
Halidrys siliquosa (L.) Lyngb. 1819 Schotentang, Meereiche Critically endangered
Halochlorococcum dilatatum Kornmann & Sahling 1983 Data deficient
Halochlorococcum marinum P.A. Dang. 1965 Data deficient
Halochlorococcum moorei (N.L. Gardner) Kornmann & Sahling 1983 Data deficient
Halorhiza vaga Kütz. 1843 Data deficient
Halosiphon tomentosus (Lyngb.) Jaasund 1957 Least concern
Halothrix lumbricalis (Kütz.) Reinke 1888 Not established
Halurus flosculosus (J.Ellis) Maggs & Hommers. 1993 Least concern
Haplospora globosa Kjellman 1872 Data deficient
Harveyella mirabilis (Reinsch) F. Schmitz & Reinke 1889 Data deficient
Hecatonema terminale (Kütz.) Kylin 1937 Threatened to an unkown extent
Helminthocladia calvadosii (J.V. Lamour. ex Duby) Setch. 1925 Extinct in Germany
Helminthora divaricata (C. Agardh) J. Agardh 1852 Extinct in Germany
Herponema velutinum (Grev.) J. Agardh 1890 Data deficient
Hildenbrandia crouanii J. Agardh 1852 Data deficient
Hildenbrandia rubra (Sommerf.) Menegh. 1841 Least concern
Himanthalia elongata (L.) Gray 1821 Riementang Rare
Hincksia fuscata (Zanardini) P.C. Silva 1987 Data deficient
Hincksia granulosa (Sm.) P.C. Silva 1987 Data deficient
Hincksia hincksiae (Harv.) P.C. Silva 1987 Data deficient
Hincksia ovata (Kjellman) P.C. Silva 1987 Rare
Hincksia sandriana (Zanardini) P.C. Silva 1987 Critically endangered
Hormotrichum vermiculare Kütz. 1849 Data deficient
Hydrolithon farinosum (J.V. Lamour.) Penrose & Y.M. Chamb. 1993 Extinct in Germany
I
Isthmoplea sphaerophora (Carmich.) Kjellman 1879 Data deficient
J
Jania rubens (L.) J.V. Lamour. 1816 var. rubens Extinct in Germany
Jania rubens var. corniculata (L.) Yendo 1905 Data deficient
K
Kornmannia leptoderma (Kjellman) Bliding 1969 Extinct in Germany
Kuckuckia spinosa (Kütz.) Kornmann 1958 Data deficient
Kuetzingiella holmesii (Batters) Kornmann 1956 Data deficient
Kuetzingiella maculans (Kuck.) Kornmann Data deficient
Kylinia humilis (Rosenv.) Papenf. 1947 Data deficient
Kylinia kylinoides (Feldmann) Pankow 1971 Data deficient
L
Laminaria digitata (Huds.) J.V. Lamour. 1813 Fingertang Least concern
Laminaria hyperborea (Gunnerus) Foslie 1884 Palmentang Least concern
Laminariocolax aecidioides (Rosenv.) E. Burkhardt & A.F. Peters 1998 Data deficient
Laminariocolax tomentosoides (Farl.) Kylin 1947 Least concern
Laminarionema elsbetiae H. Kawai & Tokuyama 1995 Data deficient
Laurencia pinnatifida (Huds.) J. V. Lamour. 1813 Not established
Leathesia marina (Lyngb.) Decsn. 1842 Vulnerable
Leptonematella fasciculata (Reinke) P.C. Silva 1959 Least concern
Lithophyllum orbiculatum (Foslie) Foslie 1900 Data deficient
Lithothamnion sonderi Hauck 1883 Least concern
Litosiphon laminariae (Lyngb.) Harv. 1849 Kleine Schlauchalge Data deficient
Lomentaria clavellosa (Turner) Gaillon 1828 Rare
Lomentaria orcadensis (Harv.) F.S. Collins ex W.R. Taylor 1937 Rare
Lophosiphonia obscura (C. Agardh) Falkenb. 1897 Data deficient
M
Mastocarpus stellatus (Stackh.) Guiry 1984 Sterntang Least concern
Melobesia membranacea (Esper) J.V. Lamour. 1812 Data deficient
Membranoptera alata (Huds.) Stackh. 1809 Flügel-Seeampfer Threatened to an unkown extent
Mesogloia vermiculata (Sm.) Gray 1821 Würmchentang Rare
Microspongium gelatinosum Reinke 1888 Least concern
Microspongium globosum Reinke 1888 Least concern
Microspongium tenuissimum (Hauck) A.F. Peters 2003 Data deficient
Mikrosyphar polysiphoniae Kuck. 1897 Data deficient
Mikrosyphar porphyrae Kuck. 1897 Data deficient
Monostroma arcticum Wittr. 1866 Data deficient
Monostroma balticum (Aresch.) Wittr. 1866 Least concern
Monostroma grevillei (Thur.) Wittr. 1866 Trompetenalge Least concern
Myrionema balticum (Reinke) Foslie 1894 Data deficient
Myrionema magnusii (Sauv.) Loiseaux 1967 Least concern
Myrionema seriatum (Reinke) Kylin 1947 Data deficient
Myrionema strangulans Grev. 1827 Data deficient
Myriotrichia clavaeformis Harv. 1834 Extinct in Germany
N
Nemalion helminthoides (Velley) Batters 1902 Wurmtang Extinct in Germany
Neosiphonia elongella (Harv.) M.S. Kim & I.K. Lee 1999 Data deficient
Neosiphonia harveyi (J. Bailey) M.S. Kim & al. 2001 Data deficient
O
Ochlochaete hystrix Thwaites ex Harv. 1849 var. hystrix Data deficient
Ochlochaete hystrix var. ferox (Huber) R. Nielsen 1978 Least concern
Odonthalia dentata (L.) Lyngb. 1819 Not established
Ostreobium quekettii Bornet & Flahault 1889 Data deficient
P
Palmaria palmata (L.) O. Kuntze 1898 Not established
Pelvetia canaliculata (L.) Decaisne & Thuret 1845 Not established
Percursaria percursa (C. Agardh) Rosenv. 1893 Least concern
Petalonia fascia (O.F. Müll.) Kuntze 1898 Bandblatt Least concern
Petalonia zosterifolia (Reinke) Kuntze 1898 Least concern
Petroderma maculiforme (Wollny) Kuck. 1897 Least concern
Petrospongium berkeleyi (Grev.) Nägeli ex Kütz. 1858 Extinct in Germany
Peyssonnelia dubyi P. Crouan & H. Crouan 1844 Data deficient
Phaeophila dendroides (P. Crouan & H. Crouan) Batters 1902 Data deficient
Phaeostroma pustulosum Kuck. 1893 Data deficient
Phycocelis foecunda Strömf. 1888 Data deficient
Phycodrys rubens (L.) Batters 1902 Ausgebuchteter Seeampfer, Ausgebuchtete Delesseria Least concern
Phyllophora crispa (Huds.) P.S. Dixon 1964 Krauser Tang Critically endangered
Phyllophora pseudoceranoides (S.G. Gmel.) Newroth & A.R.A. Taylor 1971 Hautblättriger Tang Least concern
Phymatolithon calcareum (Pall.) W.H. Adey & D.L. McKibbin 1970 Knolliger Kalktang Data deficient
Phymatolithon laevigatum (Foslie) Foslie 1898 Data deficient
Phymatolithon lenormandii (Aresch.) W.H. Adey 1966 Threatened to an unkown extent
Phymatolithon purpureum (P. Crouan & H. Crouan) Woelk. & L.M. Irvine 1986 Data deficient
Pilinia rimosa Kütz. 1843 Least concern
Planophila microcystis (P.J.L. Dang.) Kornmann & Sahling 1983 Data deficient
Pleurocladia lucifuga (Kuck.) R.T. Wilce 1966 Data deficient
Plocamium cartilagineum (L.) P.S. Dixon 1967 Kammtang Rare
Plumaria plumosa (Huds.) Kuntze 1891 Zierliche Seefeder Least concern
Pneophyllum fragile Kütz. 1843 Data deficient
Pneophyllum myriocarpum (P. Crouan & H. Crouan) Y.M. Chamb. 1983 Data deficient
Pogotrichum filiforme Reinke 1892 Data deficient
Polyides rotundus (Huds.) Grev. 1830 Scherentang Least concern
Polysiphonia boldii M.J. Wynne & P. Edwards Data deficient
Polysiphonia elongata (Huds.) Spreng. 1827 Least concern
Polysiphonia fibrillosa (Dillwyn) Spreng. 1827 Least concern
Polysiphonia fucoides (Huds.) Grev. 1824 Least concern
Polysiphonia lanosa (L.) Tandy 1931 Data deficient
Polysiphonia nigra (Huds.) Batters 1902 Data deficient
Polysiphonia stricta (Dillwyn) Grev. 1824 Least concern
Porphyra dioica J. Brodie & L.M. Irvine 1997 Data deficient
Porphyra laciniata C. Agardh 1824 Near threatened
Porphyra leucosticta Thur. 1863 Data deficient
Porphyra linearis Grev. 1830 Least concern
Porphyra ochotensis Nagai 1941 Data deficient
Porphyra purpurea (Roth) C. Agardh 1824 Data deficient
Porphyra umbilicalis (L.) Kütz. 1843 Least concern
Porphyra yezoensis Ueda 1932 Data deficient
Porphyropsis coccinea (J. Agardh ex Aresch.) Rosenv. 1909 Data deficient
Porphyropsis imperfecta Kornmann & Sahling 1985 Data deficient
Porphyrostromium ciliare (Carmich.) M.J. Wynne 1986 Data deficient
Prasiola calophylla (Carmich. ex Grev.) Kütz. 1845 Data deficient
Prasiola furfuracea (Mert. ex Hornem.) Kütz. 1843 Data deficient
Prasiola stipitata Suhr ex Jess. 1848 Gestielte Prasiola Least concern
Pringsheimiella scutata (Reinke) Höhn. ex Marchew. 1925 Data deficient
Protectocarpus hecatonemoides Kuck. 1955 Extinct in Germany
Protectocarpus speciosus (Børgesen) Kornmann 1955 Least concern
Protomonostroma undulatum (Wittr.) K.L. Vinogr. 1969 Data deficient
Pseudendoclonium dynamenae R. Nielsen 1985 Data deficient
Pseudendoclonium fucicola (Rosenv.) R. Nielsen 1980 Least concern
Pseudendoclonium marinum (Reinke) Aleem & E. Schulz 1952 Least concern
Pseudendoclonium submarinum Wille 1901 Near threatened
Pseudolithoderma extensum (P. Crouan & H. Crouan) S. Lund 1959 Least concern
Pseudolithoderma rosenvingei (Waern) S. Lund 1959 Least concern
Pseudolithoderma subextensum (Waern) S. Lund 1959 Least concern
Pterothamnion plumula (J. Ellis) Nägeli 1855 Rare
Punctaria latifolia Grev. 1830 Breitblättriger Meerwegerich Rare
Punctaria plantaginea (Roth) Grev. 1830 Data deficient
Punctaria tenuissima (C. Agardh) Grev. 1830 Data deficient
Pylaiella littoralis (L.) Kjellman 1872 Least concern
Pylaiella varia Kjellman 1883 Data deficient
R
Ralfsia bornetii Kuck. 1894 Data deficient
Ralfsia lucida S. Lund 1967 Data deficient
Ralfsia verrucosa (Aresch.) Aresch. 1845 Warzige Braunalge Least concern
Rhizoclonium hieroglyphicum (C. Agardh) Kütz. 1843 Data deficient
Rhizoclonium riparium (Roth) Harv. 1849 var. riparium Least concern
Rhizoclonium riparium var. implexum (Dillwyn) Rosenv. 1893 Data deficient
Rhodochorton purpureum (Lightf.) Rosenv. 1900 Data deficient
Rhodomela confervoides (Huds.) P.C. Silva 1952 Least concern
Rhodophysema elegans (P. Crouan & H. Crouan ex J. Agardh) P.S. Dixon 1964 Least concern
Rhodophysema georgei Batters 1900 Least concern
Rhodothamniella floridula (Dillwyn) Feldmann 1978 Least concern
Rosenvingiella constricta (Setch. & N.L. Gardner) P.C. Silva 1957 Rare
Rosenvingiella polyrhiza (Rosenv.) P.C. Silva 1957 Data deficient
Ruthnielsenia tenuis (Kylin) O'Kelly & al. 2004 Data deficient
S
Saccharina latissima (L.) C.E. Lane & al. 2006 Zuckertang Least concern
Sahlingia subintegra (Rosenv.) Kornmann 1989 Data deficient
Sargassum muticum (Yendo) Fensholt 1955 Least concern
Sauvageaugloia divaricata (Clemente) Cremades 1990 Extinct in Germany
Scagelia pylaisaei (Mont.) M.J. Wynne 1985 Extinct in Germany
Scagelothamnion pusillum (Rupr.) Athanas. 1996 Least concern
Scinaia furcellata (Turner) J. Agardh 1852 subsp. furcellata Extinct in Germany
Scinaia furcellata subsp. scandinavica (Maggs & Guiry) Athanas. 1996 Data deficient
Scytosiphon lomentaria (Lyngb.) Link 1833 Geschnürter Schlauchtang Least concern
Sorapion simulans Kuck. 1894 Rare
Spermatochnus paradoxus (Roth) Kütz. 1843 Extinct in Germany
Spermothamnion repens (Dillwyn) Rosenv. 1924 Threatened to an unkown extent
Sphacelaria arctica Harv. 1858 Data deficient
Sphacelaria caespitula Lyngb. 1819 Data deficient
Sphacelaria cirrosa (Roth) C. Agardh 1824 Threatened to an unkown extent
Sphacelaria nana Nägeli ex Kütz. 1855 Critically endangered
Sphacelaria plumigera Holmes ex Hauck 1884 Least concern
Sphacelaria plumosa Lyngb. 1819 Data deficient
Sphacelaria plumula Zanardini 1865 Extinct in Germany
Sphacelaria racemosa Grev. 1824 Data deficient
Sphacelaria radicans (Dillwyn) C. Agardh 1824 Least concern
Sphacelaria reticulata Lyngb. 1818 Data deficient
Sphacelaria rigidula Kütz. 1843 Data deficient
Sphaerotrichia divaricata (C. Agardh) Kylin 1940 Threatened to an unkown extent
Spongomorpha aeruginosa (L.) C. Hoek 1963 Wollige Zweigfadenalge Least concern
Spongomorpha tomentosa (Lightf.) Kütz. 1845 Data deficient
Spongonema tomentosum (Huds.) Kütz. 1849 Filzige Braunalge Least concern
Sporochnus pedunculatus (Huds.) C. Agardh 1820 Stieltang Extinct in Germany
Stictyosiphon soriferus (Reinke) Rosenv. 1935 Data deficient
Stictyosiphon tortilis (Rupr.) Reinke 1889 Schlauchalge Least concern
Stigeoclonium protensum (Dillwyn) Kütz. 1845 Least concern
Stigeoclonium tenue (C. Agardh) Kütz. 1843 Least concern
Stilophora nodulosa (C. Agardh) P.C. Silva 1996 Least concern
Stilophora tenella (Esper) P.C. Silva 1996 Least concern
Stragularia clavata (Harv.) Hamel 1931 Data deficient
Streblonema fasciculatum Thur. 1863 Extinct in Germany
Streblonema maculans (P.A. Dang.) South & Tittley 1986 Data deficient
Striaria attenuata (C. Agardh) Grev. 1828 Critically endangered
Stromatella monostromatica (P.J.L. Dang.) Kornmann & Sahling 1985 Data deficient
Stromatella papillosa (P.J.L. Dang.) Kornmann & Sahling 1985 Data deficient
Stylonema alsidii (Zanardini) K.M. Drew 1956 Data deficient
Stypocaulon scoparium (L.) Kütz. 1843 Pinsel-Halopteris Extinct in Germany
Sykidion droebakense Wille 1901 Data deficient
Symphyocarpus strangulans Rosenv. 1893 Extinct in Germany
Syncoryne reinkei R. Nielsen & P.M. Pedersen 1977 Data deficient
T
Tilopteris mertensii (Turner) Kütz. 1849 Rare
Titanoderma corallinae (P. Crouan & H. Crouan) Woelk. & al. 1985 Extinct in Germany
Titanoderma laminariae (P. Crouan & H. Crouan) Y.M. Chamb. 1991 Extinct in Germany
Titanoderma pustulatum (J.V. Lamour.) Nägeli 1858 Data deficient
Tsengia bairdii (Farl.) K.C. Fan & Y.P. Fan 1962 Rare
U
Ulonema rhizophorum Foslie 1894 Least concern
Ulothrix flacca (Dillwyn) Thur. 1863 Kraushaaralge Least concern
Ulothrix implexa (Kütz.) Kütz. 1849 Least concern
Ulothrix speciosa (Carmich.) Kütz. 1849 Data deficient
Ulothrix subflaccida Wille 1901 Data deficient
Ulothrix zonata (Weber & Mohr) Kütz. 1843 Least concern
Ulva clathrata (Roth) C. Agardh 1811 Least concern
Ulva compressa L. 1753 Flacher Darmtang Least concern
Ulva curvata (Kütz.) De Toni 1889 Least concern
Ulva flexuosa Wulfen 1803 Least concern
Ulva intestinalis L. 1753 Darmtang Least concern
Ulva lactuca L. 1753 Meersalat Least concern
Ulva linza L. 1753 Gewellter Darmtang Least concern
Ulva prolifera O.F. Müll. 1778 Least concern
Ulva pseudocurvata Koeman & C. Hoek 1981 Rare
Ulva radiata (J. Agardh) H.S. Hayden & al. 2003 Least concern
Ulva ralfsii (Harv.) Le Jol. 1863 Least concern
Ulva rigida C. Agardh 1823 Data deficient
Ulva scandinavica Bliding 1968 Data deficient
Ulva simplex (K.L. Vinogr.) H.S. Hayden & al. 2003 Data deficient
Ulva tenera Kornmann & Sahling 1994 Rare
Ulva torta (Mert.) Trev. 1841 Least concern
Ulvaria splendens (Rupr.) K.L. Vinogr. 1979 Least concern
Ulvella lens P. Crouan & H. Crouan 1859 Data deficient
Urospora bangioides (Harv.) Holmes & Batters 1891 Data deficient
Urospora curvata (Printz) Kornmann 1994 Data deficient
Urospora neglecta (Kornmann) Lokhorst & Trask 1981 Data deficient
Urospora penicilliformis (Roth) Aresch. 1866 Least concern
Urospora wormskioldii (Mert. ex Hornem.) Rosenv. 1893 Data deficient