Carradoriella spec (Hudson) Savoie & G.W.Saunders species homotypic synonym

Conferva elongata Hudson species synonym

Rytiphlaea thuyoides (Harvey) Harvey species synonym

Vertebrata australis (C.Agardh) Kuntze species accepted

Fucus byssoides Goodenough & Woodward, 1797 species synonym

Conferva byssoides (Goodenough & Woodward) F.Weber & Mohr, 1804 species synonym

Lophothalia byssoides (Goodenough & Woodward) J.Agardh, 1890 species synonym

Boergeseniella martensiana (Kütz.) Ardré, 1970 species synonym

Boergeseniella fruticulosa (Wulfen) Kylin species synonym

Fucus fruticulosus Wulfen, 1789 species synonym

Rytiphlaea fruticulosa (Wulfen) Harvey, 1849 species synonym

Pterosiphonia fruticulosa (Wulfen) L.Batten species synonym

Boergeseniella fruticulosa var. wulfenii Bornet variety synonym

Boergeseniella thuyoides (Harvey) Kylin species synonym

Boryna elongata (Hudson) Bory, 1829 species synonym

Rhodomela elongata (Hudson) Fries species synonym

Lophosiphonia neglecta (Harvey) De Toni, 1903 species synonym

Conferva badia Dillwyn, 1809 species synonym

Conferva atrorubescens Dillwyn, 1809 species synonym

Conferva fucoides Hudson species synonym

Conferva nigrescens Hudson species synonym

Conferva atrorubens Wahlenberg, 1812 species synonym

Vertebrata lanosa (L.) T.A.Chr. species accepted

Vertebrata fastigiata S.F.Gray, 1821 species synonym

Fucus lanosus L., 1767 species synonym

Conferva omissa Gunnerus, 1772 species synonym

Polysiphonia elongata var. denudata Harvey variety synonym

Vertebrata nigra (Hudson) Díaz-Tapia & Maggs species accepted

Hutchinsia lyngbye C.Agardh species synonym

Polysiphonia violacea (Roth) Sprengel species synonym

Vertebrata martensiana (Kütz.) Piñeiro-Corbeira, Maggs & Díaz-Tapia, 2020 species accepted

Vertebrata foetidissima (Cocks ex Bornet) Díaz-Tapia & Maggs, 2017 species accepted

Polysiphonia opaca var. tripinnata (J.Agardh) Ardiss., 1883 variety synonym

Carradoriella elongata (Hudson) A.M.Savoie & G.W.Saunders, 2019 species synonym

Boergeseniella thuyoides (Hudson) Montagne ex Kutzing species synonym

Boergeseniella thuyoides (Hudson) Montagne species homotypic synonym

Brongniartella byssoides Hudson species synonym

Polysiphonia subilifera (C Agardh) Harvey species synonym

Polysiphonia wulfenii (Roth) J.Agardh, 1842 species synonym

Polysiphonia variegata var. fragilis (Sperk) Woronichin variety synonym

Polysiphonia bangi Kütz., 1849 species synonym

Conferva nigra Hudson species homotypic synonym

Vertebrata tripinnata (Harvey) Kuntze, 1891 species accepted

Vertebrata thuyoides (Harvey) Kuntze, 1891 species accepted

Polysiphonia neglecta Harvey ex J.Agardh, 1863 species synonym

Vertebrata fruticulosa (Wulfen) Kuntze, 1891 species accepted

Polysiphonia fragilis Spherk, 1869 species synonym

Polysiphonia urceolata f. fucoides (Hudson) J.Agardh, 1863 form synonym

Pterosiphonia thuyoides (Harvey) Batters, 1902 species synonym

Conferva byssoides (Goodenough & Woodward) Smith, 1799 species synonym

Ceramium elongatum (Hudson) Roth species synonym

Brongniartella elegans Bory, 1822 species synonym

Brongniartella byssoides (Goodenough & Woodword) F.Schmitz, 1893 species synonym

Ceramium byssoides (Goodenough & Woodward) C.Agardh, 1811 species synonym

Polysiphonia byssoides (Goodenough & Woodward) Greville species synonym

Polysiphonia solierii J.Agardh, 1842 species synonym

Hutchinsia byssoides (Goodenough & Woodward) C.Agardh species synonym

Polysiphonia lyngbyei Kütz., 1843 species synonym

Polysiphonia robusta Kütz., 1843 species synonym

Ceramium wulfeni Roth, 1806 species synonym

Polysiphonia cymosa Kütz., 1849 species synonym

Polysiphonia humilis Kütz., 1849 species synonym

Polysiphonia fruticulosa (Wulfen) Sprengel species synonym

Polysiphonia comatula Kütz., 1849 species synonym

Polysiphonia martensiana Kütz., 1843 species synonym

Polysiphonia fruticulosa var. wulfenii (Roth) Bornet variety synonym

Polysiphonia pycnophloea Kütz., 1849 species synonym

Polysiphonia thuyoides Harvey species synonym

Polysiphonia elongata (Hudson) Sprengel species synonym

Polysiphonia strictoides (Lyngb.) Kütz. species synonym

Hutchinsia elongata var. prolifera C.Agardh, 1817 variety synonym

Hutchinsia lyngbyei C.Agardh, 1828 species synonym

Polysiphonia leptoclonia Zanardini ex De Toni, 1907 species synonym

Polysiphonia elongata var. denudata (C.Agardh) Zanardini, 1841 variety synonym

Polysiphonia arborescens Kützing species synonym

Polysiphonia elongata var. sanguinolenta (C.Agardh) Harvey, 1833 variety synonym

Polysiphonia trichodes Kütz., 1843 species synonym

Polysiphonia chalarophloea Kütz., 1849 species synonym

Polysiphonia schuebeleri Foslie species synonym

Polysiphonia elongata var. rosea (Grev.) J.Agardh variety synonym

Polysiphonia rosea Greville species synonym

Polysiphonia haematites Kütz., 1843 species synonym

Polysiphonia elongata f. nana Gran, 1897 form synonym

Hutchinsia strictoides (Turton) Lyngbye species synonym

Polysiphonia elongata f. schuebeleri (Foslie) Rosenv., 1924 form synonym

Polysiphonia elongata var. arborescens (Kütz.) Schiffn. variety synonym

Polysiphonia elongata var. robusta (Kütz.) Schiffn. variety synonym

Polysiphonia elongata f. lyngbyei (C.Agardh) J.Agardh, 1863 form synonym

Polysiphonia elongata var. stenocarpa (Kütz.) Schiffn. variety synonym

Polysiphonia denudata f. fragilis Voronikh form synonym

Hutchinsia ruchingeri C.Agardh, 1827 species synonym

Polysiphonia delphina De Not. species synonym

Polysiphonia elongata var. microdendron (J.Agardh) Gran, 1897 variety synonym

Polysiphonia microdendron J.Agardh species synonym

Polysiphonia ruchingeri (C.Agardh) Zanardini, 1841 species synonym

Polysiphonia macroclonia Kütz., 1843 species synonym

Polysiphonia stenocarpa Kütz., 1849 species synonym

Polysiphonia commutata Kütz., 1849 species synonym

Polysiphonia elongata f. glomerata Gran, 1897 form synonym

Ceramium brachygonium Lyngb., 1819 species synonym

Hutchinsia elongata (Hudson) C.Agardh species synonym

Polysiphonia elongata var. haematites (Kütz.) Schiffn. variety synonym

Polysiphonia clavigera Kütz., 1849 species synonym

Hutchinsia elongata var. denudata C.Agardh, 1828 variety synonym

Polysiphonia elongata f. gelatinosa Kylin, 1907 form synonym

Polysiphonia elongata var. ruchingeri (C.Agardh) Schiffn. variety synonym

Polysiphonia isogona Harvey, 1855 species homotypic synonym

Polysiphonia compacta Lucas, 1913 species synonym

Polysiphonia amoena Sonder, 1855 species synonym

Polysiphonia comoides Harvey, 1855 species synonym

Polysiphonia nigra (Hudson) Batters species homotypic synonym

Polysiphonia atrorubescens (Dillwyn) Greville species synonym

Polysiphonia badia (Dillwyn) Sprengel, 1827 species synonym

Hutchinsia badia (Dillwyn) C.Agardh, 1817 species synonym

Hutchinsia atrorubescens (Dillwyn) C.Agard species synonym

Polysiphonia fucoides (Hudson) Greville species heterotypic synonym

Ceramium violaceum var. nigrescens (Hudson) Wahlenberg, 1826 variety synonym

Polysiphonia nigrescens f. pectinata (C.Agardh) J.Agardh, 1863 form synonym

Ceramium violaceum Roth species synonym

Polysiphonia nigrescens f. fucoides (Hudson) J.Agardh, 1863 form synonym

Hutchinsia nigrescens var. pectinata C.Agardh, 1824 variety synonym

Polysiphonia nigrescens (Hudson) Greville ex Harvey species synonym

Polysiphonia atropurpurea Moore ex Harvey, 1841 species synonym

Polysiphonia nigrescens f. senticosa (Kütz.) J.Agardh, 1863 form synonym

Polysiphonia nigrescens f. protensa J.Agardh, 1863 form synonym

Hutchinsia nigrescens (Hudson) Lyngbye species synonym

Hutchinsia violacea (Roth) C.Agardh species synonym

Polysiphonia nigrescens var. flaccida Aresch., 1847 variety synonym

Hutchinsia violacea var. nigrescens (Hudson) C.Agardh, 1817 variety synonym

Polysiphonia senticosa Suhr ex Kütz., 1849 species synonym

Polysiphonia furcellata (C.Agardh) Harvey species synonym

Polysiphonia laevigata Kütz., 1843 species synonym

Polysiphonia coarctata Kütz., 1849 species synonym

Polysiphonia furcellata var. forcipata (J.Agardh) J.Agardh, 1852 variety synonym

Hutchinsia furcellata C.Agardh, 1828 species synonym

Polysiphonia simulans Harvey species synonym

Polysiphonia lanosa (L.) Tandy species synonym

Hutchinsia fastigiata (Roth) C.Agardh, 1817 species synonym

Polysiphonia fastigiata (Roth) Greville species synonym

Polysiphonia subulifera (C.Agardh) Harvey species synonym

Polysiphonia ramellosa Kütz., 1843 species synonym

Polysiphonia armata J.Agardh, 1842 species synonym

Polysiphonia subulifera var. templetonii Harvey variety synonym

Polysiphonia incurva Zanardini species synonym

Hutchinsia subulifera C.Agardh, 1827 species synonym

Polysiphonia tripinnata J.Agardh, 1842 species synonym

Polysiphonia foetidissima Cocks ex Bornet species synonym

Polysiphonia affinis Moore species synonym

Polysiphonia comosa Kütz., 1843 species synonym

Polysiphonia nigrescens var. fucoides (Hudson) Harvey variety synonym

Vertebrata constricta (Womersley) Diaz-Tapia & Maggs species accepted

Vertebrata spec (Hudson) Kuntze species accepted

Vertebrata isogona (Harv.) Diaz-Tapia & Maggs species accepted

Ceramium elongatum var. denudatum (C.Agardh) Örsted, 1844 variety synonym

Polysiphonia nigrescens f. flaccida (Aresch.) Kylin, 1907 form synonym

Polysiphonia atrorubens species synonym

Vertebrata subulifera (C.Agardh) Kuntze, 1891 species accepted

Polysiphonia forcipata J.Agardh, 1842 species synonym

Fucus muscoides Forssk., 1775 species synonym

Polysiphonia atropurpurea Moore species homotypic synonym

Vertebrata aterrima (Hook.f. & Harv.) Kuntze species accepted

Polysiphonia laxa Kütz., 1843 species synonym

Vertebrata hypnoides (Welw.) Kuntze, 1891 species accepted

Vertebrata simulans (Harvey) Kuntze, 1891 species accepted

Vertebrata byssoides (Goodenough & Woodward) Kuntze species accepted

Ceramium fastigiatum Roth, 1800 species synonym

Vertebrata furcellata (C.Agardh) Kuntze, 1891 species accepted

Polysiphonia elongata f. denudata (C.Agardh) Batters, 1890 form synonym

Polysiphonia elongata f. microdendron (J.Agardh) Kjellman, 1880 form synonym

Ceramium elongatum var. proliferum (C.Agardh) Örsted, 1844 variety synonym

Vertebrata fucoides (Huds.) Kuntze species synonym

Polysiphonia foetidissima Cocks species homotypic synonym

Polysiphonia leptoclonia Zanardini species homotypic synonym

Polysiphonia senticosa Suhr species homotypic synonym

Polysiphonia neglecta Harvey species homotypic synonym

Polysiphonia nigrescens (Huds.) Grev. species synonym