1. Subgenus Sargassum (Arthrophycus)
   1. Species Sargassum (Arthrophycus) sinclairii J.D. Hooker & Harvey, 1845 represented as Sargassum sinclairii J.D.Hooker & Harvey, 1845
   2. Species Sargassum (Arthrophycus) tristichum Sonder, 1845 represented as Sargassum tristichum Sonder, 1845
   3. Species Sargassum (Arthrophycus) vestitum (R.Brown ex Turner) C. Agardh, 1820 represented as Sargassum vestitum (R.Brown ex Turner) C.Agardh, 1820
2. Subgenus Sargassum (Bactrophycus)
   1. Species Sargassum (Bactrophycus) trichophyllum (Kützing) Kuntze, 1880
   2. Species Sargassum (Bactrophycus) ammophilum Yoshida & T. Konno, 1982 represented as Sargassum ammophilum Yoshida & T.Konno, 1982
   3. Species Sargassum (Bactrophycus) autumnale Yoshida, 1983 represented as Sargassum autumnale Yoshida, 1983
   4. Species Sargassum (Bactrophycus) boreale Yoshida & Horiguchi, 2000 represented as Sargassum boreale Yoshida & Horiguchi, 2000
   5. Species Sargassum (Bactrophycus) confusum C. Agardh, 1824 represented as Sargassum confusum C.Agardh, 1824
   6. Species Sargassum (Bactrophycus) coreanum J. Agardh, 1889 represented as Sargassum coreanum J.Agardh, 1889
   7. Species Sargassum (Bactrophycus) emarginatum C.K. Tseng & Lu, 1978 represented as Sargassum emarginatum C.K.Tseng & Lu Baroen, 1978
   8. Species Sargassum (Bactrophycus) filicinum Harvey, 1860 represented as Sargassum filicinum Harvey, 1860 accepted as Sargassum horneri (Turner) C.Agardh, 1820
   9. Species Sargassum (Bactrophycus) fulvellum (Turner) C. Agardh, 1820 represented as Sargassum fulvellum (Turner) C.Agardh, 1820
   10. Species Sargassum (Bactrophycus) giganteifolium Yamada, 1925 represented as Sargassum giganteifolium Yamada, 1925
   11. Species Sargassum (Bactrophycus) hemiphyllum (Turner) C. Agardh, 1820 represented as Sargassum hemiphyllum (Turner) C.Agardh, 1820
   12. Species Sargassum (Bactrophycus) horneri (Turner) C. Agardh, 1820 represented as Sargassum horneri (Turner) C.Agardh, 1820
   13. Species Sargassum (Bactrophycus) macrocarpum C. Agardh, 1820 represented as Sargassum macrocarpum C.Agardh, 1820
   14. Species Sargassum (Bactrophycus) microceratium (Mertens ex Turner) C. Agardh, 1820 represented as Sargassum microceratium (Mertens ex Turner) C.Agardh, 1820
   15. Species Sargassum (Bactrophycus) nigrifolium Yendo, 1907 represented as Sargassum nigrifolium Yendo, 1907
   16. Species Sargassum (Bactrophycus) nipponicum Yendo, 1907 represented as Sargassum nipponicum Yendo, 1907
   17. Species Sargassum (Bactrophycus) okamurae Yoshida & T.Konno, 1983 represented as Sargassum okamurae Yoshida & T.Konno, 1983
   18. Species Sargassum (Bactrophycus) pallidum (Turner) C. Agardh, 1820 represented as Sargassum pallidum (Turner) C.Agardh, 1820
   19. Species Sargassum (Bactrophycus) ringgoldianum Harvey, 1860 represented as Sargassum ringgoldianum Harvey, 1860
   20. Species Sargassum (Bactrophycus) rostratum J. Agardh, 1896 represented as Sargassum rostratum J.Agardh, 1896
   21. Species Sargassum (Bactrophycus) sagamianum Yendo, 1907 represented as Sargassum sagamianum Yendo, 1907
   22. Species Sargassum (Bactrophycus) serratifolium (C. Agardh) C. Agardh, 1820 represented as Sargassum serratifolium (C.Agardh) C.Agardh, 1820
   23. Species Sargassum (Bactrophycus) siliquastrum (Turner) C. Agardh, 1820 represented as Sargassum siliquastrum (Mertens ex Turner) C.Agardh, 1820
   24. Species Sargassum (Bactrophycus) tenuifolium Yamada, 1942 represented as Sargassum tenuifolium Yamada, 1942
   25. Species Sargassum (Bactrophycus) yamadae Yoshida & T. Konno, 1983 represented as Sargassum yamadae Yoshida & T.Konno, 1983
   26. Species Sargassum (Bactrophycus) yezoense (Yamada) Yoshida & T. Konno, 1983 represented as Sargassum yezoense (Yamada) Yoshida & T.Konno, 1983
3. Subgenus Sargassum (Phyllotricha)
   1. Species Sargassum (Phyllotricha) abbottiae G.C. Trono, 1994 represented as Sargassum abbottiae Trono G. C. Jr, 1994
   2. Species Sargassum (Phyllotricha) boryi C. Agardh, 1824 represented as Sargassum boryi C.Agardh, 1824 accepted as Sargassum decurrens (R.Brown ex Turner) C.Agardh, 1820 accepted as Sargassopsis decurrens (R.Brown ex Turner) Trevisan, 1843
   3. Species Sargassum (Phyllotricha) decipiens (R. Brown ex Turner) J. Agardh, 1873 represented as Sargassum decipiens (R.Brown ex Turner) J.Agardh, 1873 accepted as Phyllotricha decipiens (R.Brown ex Turner) R.R.M.Dixon & Huisman, 2012
   4. Species Sargassum (Phyllotricha) decurrens (R. Brown ex Turner) C. Agardh, 1820 represented as Sargassum decurrens (R.Brown ex Turner) C.Agardh, 1820 accepted as Sargassopsis decurrens (R.Brown ex Turner) Trevisan, 1843
   5. Species Sargassum (Phyllotricha) fallax Sonder, 1845 represented as Sargassum fallax Sonder, 1845
   6. Species Sargassum (Phyllotricha) heteromorphum J. Agardh, 1873 represented as Sargassum heteromorphum J.Agardh, 1873 accepted as Sargassopsis heteromorphum (J.Agardh) R.R.M.Dixon & Huisman, 2012
   7. Species Sargassum (Phyllotricha) johnsonii V.J. Chapman, 1961 represented as Sargassum johnsonii V.J.Chapman, 1961
   8. Species Sargassum (Phyllotricha) sonderi (J. Agardh) J. Agardh, 1873 represented as Sargassum sonderi (J.Agardh) J.Agardh, 1873 accepted as Phyllotricha sonderi (J.Agardh) Areschoug, 1854
   9. Species Sargassum (Phyllotricha) varians Sonder, 1845 represented as Sargassum varians Sonder, 1845 accepted as Phyllotricha varians (Sonder) R.R.M.Dixon & Huisman, 2012
   10. Species Sargassum (Phyllotricha) verruculosum C. Agardh, 1820 represented as Sargassum verruculosum C.Agardh, 1820 accepted as Phyllotricha verruculosa (C.Agardh) R.R.M.Dixon & Huisman, 2012
4. Subgenus Sargassum (Sargassum)
   1. Species Sargassum (Sargassum) microcystum J.Agardh, 1848
   2. Species Sargassum (Sargassum) stenophyllum C.Martius, 1828
   3. Species Sargassum (Sargassum) agardhianum Farlow ex J. Agardh, 1889 represented as Sargassum agardhianum Farlow, 1889
   4. Species Sargassum (Sargassum) agaviforme Tseng & Lu, 1994 represented as Sargassum agaviforme C.K.Tseng & B.Lu, 1994
   5. Species Sargassum (Sargassum) anapense Setchell & N.L. Gardner, 1901 represented as Sargassum anapense Setchell & N.L.Gardner, 1901 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   6. Species Sargassum (Sargassum) angustifolium C. Agardh, 1820 represented as Sargassum angustifolium C.Agardh, 1820
   7. Species Sargassum (Sargassum) asperifolium Hering & G. Martens ex J. Agardh, 1848 represented as Sargassum asperifolium Hering & G.Martens ex J.Agardh, 1848
   8. Species Sargassum (Sargassum) assimile Harvey, 1859 represented as Sargassum assimile Harvey, 1860
   9. Species Sargassum (Sargassum) baccularia (Mertens) C. Agardh, 1824 represented as Sargassum baccularia (Mertens) C.Agardh, 1824
   10. Species Sargassum (Sargassum) balingasayense Trono, 1994 represented as Sargassum balingasayense Trono, 1994
   11. Species Sargassum (Sargassum) bataanense G.C. Trono, 1994 represented as Sargassum bataanense G.C.Trono, 1994
   12. Species Sargassum (Sargassum) belangeri Bory de Saint-Vincent, 1834 represented as Sargassum belangeri Bory de Saint-Vincent, 1834
   13. Species Sargassum (Sargassum) biserrula J. Agardh, 1848 represented as Sargassum biserrula J.Agardh, 1848 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   14. Species Sargassum (Sargassum) carpophyllum J. Agardh, 1848 represented as Sargassum carpophyllum J.Agardh, 1848
   15. Species Sargassum (Sargassum) cervicorne Greville, 1849 represented as Sargassum cervicorne Greville, 1849
   16. Species Sargassum (Sargassum) cinctum C. Agardh, 1848 represented as Sargassum cinctum J.Agardh, 1848
   17. Species Sargassum (Sargassum) cinereum J. Agardh, 1848 represented as Sargassum cinereum J.Agardh, 1848
   18. Species Sargassum (Sargassum) crassifolium J. Agardh, 1848 represented as Sargassum crassifolium J.Agardh, 1848 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   19. Species Sargassum (Sargassum) cristaefolium J. Agardh, 1820 represented as Sargassum cristaefolium C.Agardh, 1820 accepted as Sargassum ilicifolium (Turner) C.Agardh, 1820
   20. Species Sargassum (Sargassum) currimaoense G.C. Trono, 1994 represented as Sargassum currimaoense G.C.Trono, 1994
   21. Species Sargassum (Sargassum) cystocarpum C. Agardh, 1820 represented as Sargassum cystocarpum C.Agardh, 1820
   22. Species Sargassum (Sargassum) cystophyllum Montagne, 1842 represented as Sargassum cystophyllum Montagne, 1842
   23. Species Sargassum (Sargassum) decaisnei J. Agardh, 1848 represented as Sargassum decaisnei J.Agardh, 1848
   24. Species Sargassum (Sargassum) denticarpum T. Ajisaka, 1994 represented as Sargassum denticarpum Ajisaka, 1994
   25. Species Sargassum (Sargassum) desvauxii (Mertens) C. Agardh, 1820 represented as Sargassum desvauxii (Mertens) C.Agardh, 1820
   26. Species Sargassum (Sargassum) distichum Sonder, 1845 represented as Sargassum distichum Sonder, 1845
   27. Species Sargassum (Sargassum) dotyi Trono, 1994 represented as Sargassum dotyi Trono, 1994
   28. Species Sargassum (Sargassum) echinocarpum J. Agardh, 1848 represented as Sargassum echinocarpum J.Agardh, 1848 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   29. Species Sargassum (Sargassum) ecuadoreanum W.R. Taylor, 1945 represented as Sargassum ecuadoreanum W.R.Taylor, 1945
   30. Species Sargassum (Sargassum) erumpens Tseng & Lu, 1996 represented as Sargassum erumpens C.K.Tseng & B.Lu, 1996
   31. Species Sargassum (Sargassum) filifolium C. Agardh, 1824 represented as Sargassum filifolium (C.Agardh) C.Agardh, 1824
   32. Species Sargassum (Sargassum) filiforme Montagne, 1844 represented as Sargassum filiforme Montagne, 1844
   33. Species Sargassum (Sargassum) filipendula C. Agardh, 1824 represented as Sargassum filipendula C.Agardh, 1824
   34. Species Sargassum (Sargassum) flavicans (Mertens) C. Agardh, 1820 represented as Sargassum flavicans (Mertens) C.Agardh, 1820
   35. Species Sargassum (Sargassum) fonanonense Setchell & N.L. Gardner, 1924 represented as Sargassum fonanonense Setchell & N.L.Gardner, 1924 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   36. Species Sargassum (Sargassum) frutescens Tseng & Lu, 1994 represented as Sargassum frutescens C.K.Tseng & B.Lu, 1994
   37. Species Sargassum (Sargassum) fruticulosum Tseng & Lu, 1994 represented as Sargassum fruticulosum C.K.Tseng & B.Lu, 1994
   38. Species Sargassum (Sargassum) galapagense Grunow, 1886 represented as Sargassum galapagense Grunow, 1886
   39. Species Sargassum (Sargassum) gaudichaudii Montagne, 1842 represented as Sargassum gaudichaudii Montagne, 1842 accepted as Sargassum polycystum C.Agardh, 1824
   40. Species Sargassum (Sargassum) glaucescens J. Agardh, 1848 represented as Sargassum glaucescens J.Agardh, 1848
   41. Species Sargassum (Sargassum) gracile J.Agardh, 1848 represented as Sargassum gracile Greville, 1849 accepted as Sargassum capillare Kützing, 1843
   42. Species Sargassum (Sargassum) gracillimum Reinbold, 1913 represented as Sargassum gracillimum Reinbold, 1913
   43. Species Sargassum (Sargassum) graminifolium C.Agardh, 1820 represented as Sargassum graminifolium C.Agardh, 1820
   44. Species Sargassum (Sargassum) granuliferum C. Agardh, 1820 represented as Sargassum granuliferum C.Agardh, 1820
   45. Species Sargassum (Sargassum) grevillei J.Agardh, 1848 represented as Sargassum grevillei (C.Agardh ex Sonder) Kuntze, 1880 accepted as Cystophora grevillei (C.Agardh ex Sonder) J.Agardh, 1848
   46. Species Sargassum (Sargassum) guangdongii Tseng & Lu, 1994 represented as Sargassum guangdongii C.K.Tseng & B.Lu, 1994
   47. Species Sargassum (Sargassum) hainanense Tseng & Lu, 1995 represented as Sargassum hainanense C.K.Tseng & B.Lu, 1995
   48. Species Sargassum (Sargassum) hawaiiense Doty & Newhouse, 1966 represented as Sargassum hawaiiense Doty & Newhouse, 1966 accepted as Sargassum obtusifolium J.Agardh, 1848
   49. Species Sargassum (Sargassum) henslowianum C. Agardh, 1848 represented as Sargassum henslowianum C.Agardh, 1848
   50. Species Sargassum (Sargassum) heterocystum Montagne, 1842 represented as Sargassum heterocystum Montagne, 1842 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   51. Species Sargassum (Sargassum) hornschuchii C. Agardh, 1820 represented as Sargassum hornschuchii C.Agardh, 1820
   52. Species Sargassum (Sargassum) horridulum Grunow, 1873-1874 represented as Sargassum horridulum Grunow, 1874
   53. Species Sargassum (Sargassum) howellii Setchell, 1937 represented as Sargassum howellii Setchell, 1937
   54. Species Sargassum (Sargassum) ilicifolium (Turner) C. Agardh, 1820 represented as Sargassum ilicifolium (Turner) C.Agardh, 1820
   55. Species Sargassum (Sargassum) incanum Grunow, 1915 represented as Sargassum incanum Grunow, 1915
   56. Species Sargassum (Sargassum) intermedium Tseng & Lu, 1996 represented as Sargassum intermedium C.K.Tseng & B.Lu, 1996
   57. Species Sargassum (Sargassum) kushimotense Yendo, 1907 represented as Sargassum kushimotense Yendo, 1907
   58. Species Sargassum (Sargassum) latifolium (Turner) C.Agardh, 1820 represented as Sargassum latifolium (Turner) C.Agardh, 1820
   59. Species Sargassum (Sargassum) laxifolium Tseng & Lu, 1987 represented as Sargassum laxifolium C.K.Tseng & Lu Baroen, 1987
   60. Species Sargassum (Sargassum) leizhouense Tseng & Lu, 1994 represented as Sargassum leizhouense C.K.Tseng & B.Lu, 1994
   61. Species Sargassum (Sargassum) liebmannii J. Agardh, 1847 represented as Sargassum liebmannii J.Agardh, 1847
   62. Species Sargassum (Sargassum) linearifolium (Turner) C. Agardh, 1820 represented as Sargassum linearifolium (Turner) C.Agardh, 1820
   63. Species Sargassum (Sargassum) lophocarpum J. Agardh represented as Sargassum lophocarpum J.Agardh, 1889
   64. Species Sargassum (Sargassum) mcclurei Setchell, 1933 represented as Sargassum mcclurei Setchell, 1933
   65. Species Sargassum (Sargassum) microphyllum C. Agardh, 1820 represented as Sargassum microphyllum C.Agardh, 1820
   66. Species Sargassum (Sargassum) myriocystum J. Agardh, 1848 represented as Sargassum myriocystum J.Agardh, 1848 accepted as Sargassum polycystum C.Agardh, 1824
   67. Species Sargassum (Sargassum) naozhounse C.K.Tseng & Lu, 1987 represented as Sargassum naozhounse C.K.Tseng & Lu, 1987
   68. Species Sargassum (Sargassum) nozhouense Tseng & Lu, 1987 represented as Sargassum nozhouense Tseng & Lu, 1987
   69. Species Sargassum (Sargassum) obovatum Harvey, 1834 represented as Sargassum obovatum Greville, 1849 accepted as Sargassum densifolium Zanardini, 1858
   70. Species Sargassum (Sargassum) obtusifolium J. Agardh, 1848 represented as Sargassum obtusifolium J.Agardh, 1848
   71. Species Sargassum (Sargassum) ohnoi G.C. Trono, 1994 represented as Sargassum ohnoi G.C.Trono, 1994
   72. Species Sargassum (Sargassum) oocyste J. Agardh, 1848 represented as Sargassum oocyste J.Agardh, 1848 accepted as Sargassum aquifolium (Turner) C.Agardh, 1820
   73. Species Sargassum (Sargassum) pacificum Bory de Saint-Vincent, 1828 represented as Sargassum pacificum Bory, 1828
   74. Species Sargassum (Sargassum) paniculatum J. Agardh, 1848 represented as Sargassum paniculatum J.Agardh, 1848
   75. Species Sargassum (Sargassum) parvifolium (Turner) C.Agardh, 1820 represented as Sargassum parvifolium (Turner) C.Agardh, 1820
   76. Species Sargassum (Sargassum) parvivesiculosum C.K. Tseng & Lu, 1979 represented as Sargassum parvivesiculosum C.K.Tseng & B.Lu, 1979
   77. Species Sargassum (Sargassum) patens C. Agardh, 1820 represented as Sargassum patens C.Agardh, 1820
   78. Species Sargassum (Sargassum) peronii C. Agardh, 1820 represented as Sargassum peronii C.Agardh, 1820 accepted as Sargassopsis decurrens (R.Brown ex Turner) Trevisan, 1843
   79. Species Sargassum (Sargassum) phyllocystum C.K. Tseng & Lu, 1979 represented as Sargassum phyllocystum C.K.Tseng & Lu Baroen, 1979
   80. Species Sargassum (Sargassum) piluliferum (Turner) C. Agardh, 1820 represented as Sargassum piluliferum (Turner) C.Agardh, 1820
   81. Species Sargassum (Sargassum) podacanthum Sonder, 1845 represented as Sargassum podacanthum Sonder, 1845
   82. Species Sargassum (Sargassum) polyceratium Montagne, 1837 represented as Sargassum polyceratium Montagne, 1837
   83. Species Sargassum (Sargassum) polyphyllum J. Agardh, 1848 represented as Sargassum polyphyllum J.Agardh, 1848
   84. Species Sargassum (Sargassum) primitivum Tseng & Lu, 1995 represented as Sargassum primitivum C.K.Tseng & Lu Baoren, 1995
   85. Species Sargassum (Sargassum) pteropleuron Grunow, 1867 represented as Sargassum pteropleuron Grunow, 1868
   86. Species Sargassum (Sargassum) pulchellum Grunow, 1888 represented as Sargassum pulchellum Grunow, 1888
   87. Species Sargassum (Sargassum) qinzhounse Tseng & Lu, 1994 represented as Sargassum qinzhounse C.K.Tseng & B.Lu, 1994
   88. Species Sargassum (Sargassum) qionghaiense Tseng & Lu, 1996 represented as Sargassum qionghaiense C.K.Tseng & B.Lu, 1996
   89. Species Sargassum (Sargassum) quinhonense Nguyen Huu Dai, 2002 represented as Sargassum quinhonense Nguyen Huu Dai, 2002
   90. Species Sargassum (Sargassum) salicifolioides Yamada, 1942 represented as Sargassum salicifolioides Yamada, 1942
   91. Species Sargassum (Sargassum) samarense G.C. Trono, 1994 represented as Sargassum samarense Trono G. C. Jr, 1994
   92. Species Sargassum (Sargassum) shangchuanii Tseng & Lu, 1994 represented as Sargassum shangchuanii C.K.Tseng & B.Lu, 1994
   93. Species Sargassum (Sargassum) siliquosum J. Agardh, 1848 represented as Sargassum siliquosum J.Agardh, 1848
   94. Species Sargassum (Sargassum) spathulaefolium J. Agardh, 1848 represented as Sargassum spathulifolium J.Agardh, 1848 accepted as Sargassum swartzii C.Agardh, 1820
   95. Species Sargassum (Sargassum) spinifex C. Agardh, 1820 represented as Sargassum spinifex C.Agardh, 1820
   96. Species Sargassum (Sargassum) spinuligerum Sonder, 1845 represented as Sargassum spinuligerum Sonder, 1845
   97. Species Sargassum (Sargassum) stolonifolium S.-M. Phang & T. Yoshida, 1997 represented as Sargassum stolonifolium S.-M.Phang & T.Yoshida, 1997 accepted as Sargassum plagiophyllum C.Agardh, 1824
   98. Species Sargassum (Sargassum) subtilissimum C.K.Tseng & Lu, 1978 represented as Sargassum subtilissimum C.K.Tseng & B.Lu, 1979
   99. Species Sargassum (Sargassum) sullivanii G.C. Trono, 1994 represented as Sargassum sullivanii G.C.Trono, 1994
   100. Species Sargassum (Sargassum) swartzii C. Agardh, 1820 represented as Sargassum swartzii C.Agardh, 1820
   101. Species Sargassum (Sargassum) tahitense Grunow, 1874 represented as Sargassum tahitense (Grunow) Grunow, 1874 accepted as Sargassum pacificum Bory, 1828
   102. Species Sargassum (Sargassum) templetonii Setchell, 1937 (alternative representation)
   103. Species Sargassum (Sargassum) tenerrimum J. Agardh, 1848 (alternative representation)
   104. Species Sargassum (Sargassum) torvum J. Agardh, 1889 (alternative representation)
   105. Species Sargassum (Sargassum) turbinarioides Grunow, 1915 (alternative representation)
   106. Species Sargassum (Sargassum) umezakii G.C. Trono, 1994 (alternative representation)
   107. Species Sargassum (Sargassum) velasquezii G.C. Trono, 1992 (alternative representation)
   108. Species Sargassum (Sargassum) virgatum C. Agardh, 1820 (alternative representation)
   109. Species Sargassum (Sargassum) vulgare C. Agardh, 1820 (alternative representation)
   110. Species Sargassum (Sargassum) wenchangense Tseng & Lu, 1995 (alternative representation)
   111. Species Sargassum (Sargassum) wightii Greville, 1848 (alternative representation)
   112. Species Sargassum (Sargassum) yendoi Okamura & Yamada, 1938 (alternative representation)
   113. Species Sargassum (Sargassum) yoshidae G.C. Trono, 1994 (alternative representation)
5. Species Sargassum abbottiae Trono G. C. Jr, 1994
6. Species Sargassum acinacifolium Setchell & N.L.Gardner, 1924
7. Species Sargassum acinaciforme Montagne, 1850
8. Species Sargassum acinarium (Linnaeus) Setchell, 1933
9. Species Sargassum agardhianum Farlow, 1889
10. Species Sargassum agaviforme C.K.Tseng & B.Lu, 1994
11. Species Sargassum albemarlense W.R.Taylor, 1945
12. Species Sargassum albertisii Piccone, 1884
13. Species Sargassum alternato-pinnatum Yamada, 1942
14. Species Sargassum amabile Yamada, 1942
15. Species Sargassum amaliae Grunow, 1874
16. Species Sargassum amigdalifolium Bory de Saint-Vincent, 1832
17. Species Sargassum ammophilum Yoshida & T.Konno, 1982
18. Species Sargassum angii L.M.Laio, 1998
19. Species Sargassum angustifolioides Tseng & Lu, 2004
20. Species Sargassum angustifolium C.Agardh, 1820
21. Species Sargassum aquifolium (Turner) C.Agardh, 1820
22. Species Sargassum araii Yoshida, 1994
23. Species Sargassum armatum J.Agardh, 1848
24. Species Sargassum arnaudianum Montagne, 1850
25. Species Sargassum asperifolium Hering & G.Martens ex J.Agardh, 1848
26. Species Sargassum assimile Harvey, 1860
27. Species Sargassum autumnale Yoshida, 1983
28. Species Sargassum baccularia (Mertens) C.Agardh, 1824
29. Species Sargassum balingasayense Trono, 1994
30. Species Sargassum bangmeianum Nguyen Huu Dinh & Huynh Quang Nang, 2001
31. Species Sargassum banyuejiaoense C.K.Tseng & Lu, 1996
32. Species Sargassum baorenii Nguyen Huu Dinh & Huynh Quang Nang, 2001
33. Species Sargassum bataanense G.C.Trono, 1994
34. Species Sargassum beihaiense C.K.Tseng & B.Lu, 1999
35. Species Sargassum belangeri Bory de Saint-Vincent, 1834
36. Species Sargassum bermudense Grunow, 1916
37. Species Sargassum bicorne J.Agardh, 1848
38. Species Sargassum biserrulioides C.K.Tseng & Lu Baroen, 2002
39. Species Sargassum boreale Yoshida & Horiguchi, 2000
40. Species Sargassum boryanum A.Richard, 1834
41. Species Sargassum botruosum Montagne, 1850
42. Species Sargassum botuliforme Kraft, 2009
43. Species Sargassum boveanum J.Agardh, 1848
44. Species Sargassum brachycarpum J.Agardh, 1889
45. Species Sargassum brachyphyllum Zanardini, 1874
46. Species Sargassum bulbiferum Yoshida, 1994
47. Species Sargassum buxifolium (Chauvin) M.J.Wynne, 2011
48. Species Sargassum californicum (Grunow) Setchell, 1937
49. Species Sargassum calophyllum De Notaris, 1858
50. Species Sargassum capillare Kützing, 1843
51. Species Sargassum capilliforme Tseng & Lu, 1994
52. Species Sargassum capitatum Tseng & Lu, 2002
53. Species Sargassum carpophyllum J.Agardh, 1848
54. Species Sargassum cavernulosum Kraft, 2009
55. Species Sargassum cervicorne Greville, 1849
56. Species Sargassum chamissonis (Kützing) Kützing, 1861
57. Species Sargassum cinctum J.Agardh, 1848
58. Species Sargassum cinereum J.Agardh, 1848
59. Species Sargassum cinotum J.Agardh
60. Species Sargassum claviferum J.Agardh, 1889
61. Species Sargassum clonocarpum Grunow, 1889
62. Species Sargassum concinnum Greville ex J.Agardh, 1848
63. Species Sargassum confusum C.Agardh, 1824
64. Species Sargassum congkinhii P.H.Hô, 1967
65. Species Sargassum corderoi R.B.Modelo Jr, I.Umezaki & L.M.Liao, 1998
66. Species Sargassum coreanum J.Agardh, 1889
67. Species Sargassum cornigerum Sonder, 1915
68. Species Sargassum cornutifructum Nguyen Huu Dinh & Huynh Quang Nang, 1999
69. Species Sargassum costatum Tseng & Lu, 1996
70. Species Sargassum cotoense Nguyen Huu Dai, 2002
71. Species Sargassum crispifolium Yamada, 1931
72. Species Sargassum cuneifolium J.Agardh, 1837
73. Species Sargassum currimaoense G.C.Trono, 1994
74. Species Sargassum cylindrocarpum Setchell & Gardner, 1924
75. Species Sargassum cylindrocystum Figari & De Notaris, 1853
76. Species Sargassum cymosum C.Agardh, 1820
77. Species Sargassum cystocarpum C.Agardh, 1820
78. Species Sargassum cystophyllum Montagne, 1842
79. Species Sargassum dasyphyllum Zanardini, 1874
80. Species Sargassum dazhouense Tseng & Lu, 1997
81. Species Sargassum decaisnei J.Agardh, 1848
82. Species Sargassum densicystum Tseng & Lu, 1996
83. Species Sargassum densifolium Zanardini, 1858
84. Species Sargassum denticarpum Ajisaka, 1994
85. Species Sargassum dentifolium (Turner) C.Agardh, 1820
86. Species Sargassum desfontainesii (Turner) C.Agardh, 1820
87. Species Sargassum desvauxii (Mertens) C.Agardh, 1820
88. Species Sargassum distichum Sonder, 1845
89. Species Sargassum divaricatum Greville, 1849
90. Species Sargassum diversifolium (Turner) C.Agardh, 1824
91. Species Sargassum dotyi Trono, 1994
92. Species Sargassum dumosum Greville, 1848
93. Species Sargassum ecuadoreanum W.R.Taylor, 1945
94. Species Sargassum elegans Suhr, 1840
95. Species Sargassum emarginatum C.K.Tseng & Lu Baroen, 1978
96. Species Sargassum ensifolium (C.Agardh) J.Agardh, 1873
97. Species Sargassum erinaceum Greville ex Kuntze, 1880
98. Species Sargassum erosum J.Agardh, 1889
99. Species Sargassum erumpens C.K.Tseng & B.Lu, 1996
100. Species Sargassum esperi C.Agardh, 1820
101. Species Sargassum euryphyllum (Grunow) Tseng & Lu Baoren, 2002
102. Species Sargassum expansum Kuntze, 1880
103. Species Sargassum fallax Sonder, 1845
104. Species Sargassum feldmannii Pham-Hoàng, 1967
105. Species Sargassum fergusonii Grunow, 1915
106. Species Sargassum filifolium (C.Agardh) C.Agardh, 1824
107. Species Sargassum filiforme Montagne, 1844
108. Species Sargassum filipendula C.Agardh, 1824
109. Species Sargassum fissifolium (Mertens) C.Agardh, 1823
110. Species Sargassum flavicans (Mertens) C.Agardh, 1820
111. Species Sargassum flavifolium Kützing, 1849
112. Species Sargassum fluitans (Børgesen) Børgesen, 1914
113. Species Sargassum fragile J.Agardh, 1889
114. Species Sargassum fresenianum J.Agardh, 1837
115. Species Sargassum frutescens C.K.Tseng & B.Lu, 1994
116. Species Sargassum fruticulosum C.K.Tseng & B.Lu, 1994
117. Species Sargassum fujianense C.K.Tseng & B.Lu, 2002
118. Species Sargassum fuliginosoides Tseng & Lu, 2000
119. Species Sargassum fuliginosum Kützing, 1849
120. Species Sargassum fulvellum (Turner) C.Agardh, 1820
121. Species Sargassum furcatum Kützing, 1843
122. Species Sargassum fuscifolium Tseng & Lu, 2002
123. Species Sargassum fusiforme (Harvey) Setchell, 1931
124. Species Sargassum galapagense Grunow, 1886
125. Species Sargassum gemmiphorum Tseng & Lu, 2000
126. Species Sargassum giganteifolium Yamada, 1925
127. Species Sargassum giganteum O.Camacho & G.Diaz-Pulido, 2014
128. Species Sargassum glandulifolium Grunow ex Piccone, 1900
129. Species Sargassum glaucescens J.Agardh, 1848
130. Species Sargassum globulariifolium J.Agardh, 1889
131. Species Sargassum godeffroyi Grunow, 1874
132. Species Sargassum gracillimum Reinbold, 1913
133. Species Sargassum graminifolium C.Agardh, 1820
134. Species Sargassum granuliferum C.Agardh, 1820
135. Species Sargassum guangdongii C.K.Tseng & B.Lu, 1994
136. Species Sargassum hainanense C.K.Tseng & B.Lu, 1995
137. Species Sargassum hemiphylloides Kützing, 1847
138. Species Sargassum hemiphyllum (Turner) C.Agardh, 1820
139. Species Sargassum henslowianum C.Agardh, 1848
140. Species Sargassum herbaceum Kützing, 1849
141. Species Sargassum herklotsii Setchell, 1933
142. Species Sargassum herporhizum Setchell & N.L.Gardner, 1924
143. Species Sargassum hieui Nguyen Huu Dinh & Huynh Quang Nang, 2001
144. Species Sargassum hildebrandtii Grunow, 1889
145. Species Sargassum hombronianum Montagne, 1845
146. Species Sargassum horneri (Turner) C.Agardh, 1820
147. Species Sargassum hornschuchii C.Agardh, 1820
148. Species Sargassum horridulum Grunow, 1874
149. Species Sargassum horridum Setchell & N.L.Gardner, 1924
150. Species Sargassum howeanum A.H.S.Lucas, 1935
151. Species Sargassum howellii Setchell, 1937
152. Species Sargassum huangluense C.K.Tseng & Lu, 1996
153. Species Sargassum hystrix J.Agardh, 1847
154. Species Sargassum ilicifolioides Tseng & Lu, 2002
155. Species Sargassum ilicifolium (Turner) C.Agardh, 1820
156. Species Sargassum incanum Grunow, 1915
157. Species Sargassum incisifolium (Turner) C.Agardh, 1820
158. Species Sargassum integerrimum Tseng & Lu, 2002
159. Species Sargassum integrifolioides Tseng & Lu, 2000
160. Species Sargassum intermedium C.K.Tseng & B.Lu, 1996
161. Species Sargassum involucratum De Notaris, 1842
162. Species Sargassum johnsonii V.J.Chapman, 1961
163. Species Sargassum johnstonii Setchell & N.L.Gardner, 1924
164. Species Sargassum kashiwajimanum Yendo, 1907
165. Species Sargassum kasyotense Yamada, 1944
166. Species Sargassum kuetzingii Setchell, 1931
167. Species Sargassum kushimotense Yendo, 1907
168. Species Sargassum lacerifolium (Turner) C.Agardh, 1820
169. Species Sargassum laevigatum J.Agardh, 1889
170. Species Sargassum lanceolatum J.Agardh, 1848
171. Species Sargassum lapazeanum Setchell & N.L.Gardner, 1924
172. Species Sargassum latifolium (Turner) C.Agardh, 1820
173. Species Sargassum laxifolium C.K.Tseng & Lu Baroen, 1987
174. Species Sargassum leizhouense C.K.Tseng & B.Lu, 1994
175. Species Sargassum lendigerum (Linnaeus) C.Agardh, 1820
176. Species Sargassum leptopodum Sonder, 1871
177. Species Sargassum liebmannii J.Agardh, 1847
178. Species Sargassum ligulatum C.Agardh, 1824
179. Species Sargassum linearifolium (Turner) C.Agardh, 1820
180. Species Sargassum longicarpum Tseng & Lu, 2004
181. Species Sargassum longicaulis Tseng & Lu, 1994
182. Species Sargassum longifolius
183. Species Sargassum longifructum C.K.Tseng & B.Lu, 1987
184. Species Sargassum longivesiculosum Tseng & Lu, 1998
185. Species Sargassum lophocarpum J.Agardh, 1889
186. Species Sargassum lui M.J.Wynne, 2017
187. Species Sargassum macrocarpum C.Agardh, 1820
188. Species Sargassum macrophyllum Zanardini, 1874
189. Species Sargassum magarevense
190. Species Sargassum marcaccii Grunow, 1884
191. Species Sargassum marginatum (C.Agardh) J.Agardh, 1848
192. Species Sargassum mathiesonii Kilar, 1992
193. Species Sargassum maximilianii (Schrader) Martius, 1833
194. Species Sargassum mcclurei Setchell, 1933
195. Species Sargassum megalocystum C.K.Tseng & B.Lu, 1997
196. Species Sargassum micracantha
197. Species Sargassum micracanthum (Kützing) Endlicher, 1843
198. Species Sargassum microceratium (Mertens ex Turner) C.Agardh, 1820
199. Species Sargassum microcystum J.Agardh, 1848
200. Species Sargassum microphyllum C.Agardh, 1820
201. Species Sargassum minimum Tseng & Lu, 2004
202. Species Sargassum miyabei Yendo, 1907
203. Species Sargassum moelleri Reinbold, 1913
204. Species Sargassum muticum (Yendo) Fensholt, 1955
205. Species Sargassum namoense Nguyen Huu Dai, 2004
206. Species Sargassum nanshaense C.K.Tseng & Lu, 1996
207. Species Sargassum naozhounse C.K.Tseng & Lu, 1987
208. Species Sargassum natans (Linnaeus) Gaillon, 1828
209. Species Sargassum neglectum Figari & De Notaris, 1853
210. Species Sargassum neurophorum J.Agardh, 1889
211. Species Sargassum nigrescens Zanardini, 1858
212. Species Sargassum nigrifolioides C.K.Tseng & Lu, 1985
213. Species Sargassum nigrifolium Yendo, 1907
214. Species Sargassum nipponicum Yendo, 1907
215. Species Sargassum notarisii Zanardini, 1858
216. Species Sargassum novae-hollandiae P.C.Silva, 1996
217. Species Sargassum novae-zealandiae
218. Species Sargassum nozhouense Tseng & Lu, 1987
219. Species Sargassum obtusifolium J.Agardh, 1848
220. Species Sargassum ohnoi G.C.Trono, 1994
221. Species Sargassum okamurae Yoshida & T.Konno, 1983
222. Species Sargassum oligocystum Montagne, 1845
223. Species Sargassum orotavicum T.Díaz-Villa, J.Afonso-Carillo & M.Sansón, 2004
224. Species Sargassum pachycarpum J.Agardh, 1889
225. Species Sargassum pacificum Bory, 1828
226. Species Sargassum pallidum (Turner) C.Agardh, 1820
227. Species Sargassum palmeri Grunow, 1915
228. Species Sargassum paniculatum J.Agardh, 1848
229. Species Sargassum paradoxum (R.Brown ex Turner) Gaillon, 1828
230. Species Sargassum parvifolioides Tseng & Lu, 2002
231. Species Sargassum parvifolium (Turner) C.Agardh, 1820
232. Species Sargassum parvivesiculosum C.K.Tseng & B.Lu, 1979
233. Species Sargassum parvulum Tseng & Lu, 2004
234. Species Sargassum patens C.Agardh, 1820
235. Species Sargassum persicum Kützing, 1849
236. Species Sargassum pfeifferae Grunow, 1874
237. Species Sargassum phamhoangii Nguyen Huu Dai, 2002
238. Species Sargassum philippinense Grunow, 1916
239. Species Sargassum phyllocystum C.K.Tseng & Lu Baroen, 1979
240. Species Sargassum picconii Grunow, 1889
241. Species Sargassum piluliferum (Turner) C.Agardh, 1820
242. Species Sargassum pinnatifidum Harvey, 1860
243. Species Sargassum pinnatiphyllum Kraft, 2009
244. Species Sargassum plagiophyllum C.Agardh, 1824
245. Species Sargassum platycarpum Montagne, 1842
246. Species Sargassum podacanthoides Kraft, 2009
247. Species Sargassum podacanthum Sonder, 1845
248. Species Sargassum polyacanthum J.Agardh, 1889
249. Species Sargassum polyceratium Montagne, 1837
250. Species Sargassum polycystum C.Agardh, 1824
251. Species Sargassum polyphyllum J.Agardh, 1848
252. Species Sargassum polyporum Montagne, 1842
253. Species Sargassum porterianum
254. Species Sargassum portieranum
255. Species Sargassum portierianum Zanardini, 1858
256. Species Sargassum primitivum C.K.Tseng & Lu Baoren, 1995
257. Species Sargassum prismaticum V.D.Chauhan, 1965
258. Species Sargassum pseudocystocarpum Grunow, 1886
259. Species Sargassum pseudolanceolatum Tseng & Lu, 2002
260. Species Sargassum pterocystum Zanardini, 1858
261. Species Sargassum pteropleuron Grunow, 1868
262. Species Sargassum pulchellum Grunow, 1888
263. Species Sargassum pumilum Tseng & Lu, 2000
264. Species Sargassum pusillum W.R.Taylor, 1975
265. Species Sargassum pyriforme C.Agardh, 1824
266. Species Sargassum qinzhounse C.K.Tseng & B.Lu, 1994
267. Species Sargassum qionghaiense C.K.Tseng & B.Lu, 1996
268. Species Sargassum quinhonense Nguyen Huu Dai, 2002
269. Species Sargassum ramentaceum Zarmouth & Nizamuddin, 1991
270. Species Sargassum ramifolium Kützing, 1861
271. Species Sargassum raoulii J.D.Hooker & Harvey, 1845
272. Species Sargassum rasta R.R.M.Dixon & Huisman, 2015
273. Species Sargassum rhizophorum Tseng & Lu, 2002
274. Species Sargassum rigidulum Kützing, 1849
275. Species Sargassum ringgoldianum Harvey, 1860
276. Species Sargassum robillardii (Grunow) Mattio, Zubia, Loveday, Crochelet, Duong, Payri, Bhagooli & Bolton, 2013
277. Species Sargassum robustum Kuntze, 1880
278. Species Sargassum rostratum J.Agardh, 1896
279. Species Sargassum ryukyuense Shimabukuro & Yoshida, 2008
280. Species Sargassum sagamianum Yendo, 1907
281. Species Sargassum salicifolioides Yamada, 1942
282. Species Sargassum salicifolium Naccari, 1828
283. Species Sargassum salicifolium (J.Agardh) J.Agardh, 1889
284. Species Sargassum saltii (Turner) C.Agardh, 1824
285. Species Sargassum samarense Trono G. C. Jr, 1994
286. Species Sargassum sanyaense C.K.Tseng & Lu Baoren, 1997
287. Species Sargassum saundersii Kraft, 2009
288. Species Sargassum scabridum J.D.Hooker & Harvey, 1845
289. Species Sargassum scherzerianum Grunow, 1868
290. Species Sargassum schnetteri (Bula-Meyer) Camacho, Mattio & Diaz-Pulido, 2014
291. Species Sargassum scopula Grunow, 1916
292. Species Sargassum segii Yoshida, 1976
293. Species Sargassum serratifolium (C.Agardh) C.Agardh, 1820
294. Species Sargassum serratum Nguyen Huu Dai, 2004
295. Species Sargassum setifolium (Grunow) Setchell, 1937
296. Species Sargassum shangchuanii C.K.Tseng & B.Lu, 1994
297. Species Sargassum siliculosoides Tseng & Lu, 2002
298. Species Sargassum siliquastrum (Mertens ex Turner) C.Agardh, 1820
299. Species Sargassum siliquosum J.Agardh, 1848
300. Species Sargassum silvae C.K.Tseng & Lu Baoren, 1999
301. Species Sargassum silvai Tseng & Lu, 1999
302. Species Sargassum sinclairii J.D.Hooker & Harvey, 1845
303. Species Sargassum sinicola Setchell & N.L.Gardner, 1924
304. Species Sargassum spathulophyllum J.Tanaka, H.Murakami & S.Arai, 1999
305. Species Sargassum spinifex C.Agardh, 1820
306. Species Sargassum spinuligerum Sonder, 1845
307. Species Sargassum squarrosum Greville, 1849
308. Species Sargassum steinitzii Lipkin & P.C.Silva, 2002
309. Species Sargassum subdroserifolium Tseng & Lu, 2002
310. Species Sargassum subfalcatum Sonder, 1854
311. Species Sargassum subrepandum (Forsskål) C.Agardh, 1820
312. Species Sargassum subspathulatum (Grunow) Grunow, 1916
313. Species Sargassum subtilissimum C.K.Tseng & B.Lu, 1979
314. Species Sargassum sullivanii G.C.Trono, 1994
315. Species Sargassum swartzii C.Agardh, 1820
316. Species Sargassum symphyorhizoideum Tseng & Lu, 2002
317. Species Sargassum taiwanicum C.KTseng & B.Lu, 1999
318. Species Sargassum telephifolium (Turner) C.Agardh, 1820
319. Species Sargassum templetonii Setchell, 1937
320. Species Sargassum tenerrimum J.Agardh, 1848
321. Species Sargassum tenuifolioides Tseng & Lu, 2002
322. Species Sargassum tenuifolium Yamada, 1942
323. Species Sargassum tenuissimum (Endlicher & Diesling) Grunow, 1915
324. Species Sargassum teretifolium J.Agardh, 1848
325. Species Sargassum thivyae V.Krishnamurthy & R.Ezhili, 2000
326. Species Sargassum thunbergii (Mertens ex Roth) Kuntze, 1880
327. Species Sargassum tilesii Grunow, 1916
328. Species Sargassum torvum J.Agardh, 1889
329. Species Sargassum tosaense Yendo, 1907
330. Species Sargassum trichocarpum J.Agardh, 1889
331. Species Sargassum tristichum Sonder, 1845
332. Species Sargassum tsengii Nguyen Huu Dinh & Huynh Quang Nang, 2001
333. Species Sargassum turbinarioides Grunow, 1915
334. Species Sargassum ulixei G.Andrade-Sorcia & S.M.Boo, 2014
335. Species Sargassum umezakii G.C.Trono, 1994
336. Species Sargassum vachellianum Greville, 1848
337. Species Sargassum vaysierianum Montagne, 1850
338. Species Sargassum velasquezii G.C.Trono, 1992
339. Species Sargassum verrucosum Zanardini, 1858
340. Species Sargassum vestitum (R.Brown ex Turner) C.Agardh, 1820
341. Species Sargassum vietnamense A.D.Zinova & Dinh
342. Species Sargassum vigorosum P.C.Silva, 1996
343. Species Sargassum virescens Figari & De Notaris, 1853
344. Species Sargassum virgatum C.Agardh, 1820
345. Species Sargassum vizcainense E.Y.Dawson, 1954
346. Species Sargassum wakayamaense Yoshida, 1994
347. Species Sargassum wangii C.K.Tseng & Lu Baoren, 1998
348. Species Sargassum weizhouense C.K.Tseng & Lu Baoren, 2002
349. Species Sargassum weizhounse C.K.Tseng & Lu, 2002
350. Species Sargassum wenchangense C.K.Tseng & Lu Baoren, 1995
351. Species Sargassum wolfii S.A.Earle, 1969
352. Species Sargassum wsizhouense Tseng & Lu, 2002
353. Species Sargassum xishaense C.K.Tseng & Lu, 1979
354. Species Sargassum yamadae Yoshida & T.Konno, 1983
355. Species Sargassum yamamotoi Yoshida, 1983
356. Species Sargassum yemenense
357. Species Sargassum yendoi Okamura & Yamada, 1938
358. Species Sargassum yezoense (Yamada) Yoshida & T.Konno, 1983
359. Species Sargassum yinggehaiense Tseng & Lu, 2002
360. Species Sargassum yongxingense Tseng & Lu, 1997
361. Species Sargassum yoshidae G.C.Trono, 1994
362. Species Sargassum zacae Setchell, 1937
363. Species Sargassum zhangii C.K.Tseng & Lu Baoren, 1999
364. Species Sargassum acanthicarpum Greville, 1848 (unaccepted)
365. Species Sargassum acanthicarpum Suhr, 1836 (unaccepted, synonym)
366. Species Sargassum acanthocarpum Suhr, 1836 (unaccepted)
367. Species Sargassum aciculare Grunow, 1874 (unaccepted, synonym)
368. Species Sargassum acutifolium Greville, 1849 (unaccepted)
369. Species Sargassum aemulum Sonder, 1853 (unaccepted)
370. Species Sargassum affine J.Agardh (unaccepted)
371. Species Sargassum ambiguum Sonder, 1871 (unaccepted)
372. Species Sargassum anapense Setchell & N.L.Gardner, 1901 (unaccepted)
373. Species Sargassum asymmetricum E.Y.Dawson, 1944 (unaccepted)
374. Species Sargassum asymmetricum Yamada, 1942 (unaccepted, synonym)
375. Species Sargassum atlanticum Bory, 1829 (unaccepted, synonym)
376. Species Sargassum bacciferum (Turner) C.Agardh, 1820 (unaccepted, synonym)
377. Species Sargassum berberifolium J.Agardh, 1848 (unaccepted)
378. Species Sargassum biforme Sonder, 1845 (unaccepted)
379. Species Sargassum binderi Sonder ex J.Agardh, 1848 (unaccepted, synonym)
380. Species Sargassum biserrula J.Agardh, 1848 (unaccepted, synonym)
381. Species Sargassum biserrulum (unaccepted)
382. Species Sargassum boraborense (Grunow) Setchell, 1926 (unaccepted)
383. Species Sargassum boryanum Montagne, 1846 (unaccepted)
384. Species Sargassum boryi C.Agardh, 1824 (unaccepted, synonym)
385. Species Sargassum bracteolosum J.Agardh, 1889 (unaccepted)
386. Species Sargassum brandegeei Setchell & N.L.Gardner, 1924 (unaccepted)
387. Species Sargassum brevifolium Greville, 1849 (unaccepted)
388. Species Sargassum brevifolium Kützing, 1849 (unaccepted)
389. Species Sargassum brevipes Kützing, 1861 (unaccepted, synonym)
390. Species Sargassum bryantii Setchell & Gardner, 1924 (unaccepted, synonym)
391. Species Sargassum camouii E.Y.Dawson, 1944 (unaccepted, synonym)
392. Species Sargassum campbellianum Greville, 1848 (unaccepted, synonym)
393. Species Sargassum cheirifolium Kützing, 1849 (unaccepted, synonym)
394. Species Sargassum coarctatum Kützing, 1843 (unaccepted, synonym)
395. Species Sargassum comosum Montagne, 1841 (unaccepted)
396. Species Sargassum compactum Zanardini, 1874 (unaccepted, synonym)
397. Species Sargassum compactum Bory de Saint-Vincent, 1828 (unaccepted, synonym)
398. Species Sargassum coriifolium J.Agardh, 1889 (unaccepted)
399. Species Sargassum corynecarpum Harvey, 1860 (unaccepted)
400. Species Sargassum crassifolium J.Agardh, 1848 (unaccepted)
401. Species Sargassum crispum C.Agardh, 1824 (unaccepted)
402. Species Sargassum cristaefolium C.Agardh, 1820 (unaccepted)
403. Species Sargassum cristatum J.Agardh, 1889 (unaccepted)
404. Species Sargassum debile Greville, 1849 (unaccepted)
405. Species Sargassum decipiens (R.Brown ex Turner) J.Agardh, 1873 (unaccepted, synonym)
406. Species Sargassum decurrens (R.Brown ex Turner) C.Agardh, 1820 (unaccepted, synonym)
407. Species Sargassum densum Dickie, 1877 (unaccepted)
408. Species Sargassum denticulatum Børgesen, 1932 (unaccepted)
409. Species Sargassum dichocarpum Kützing, 1849 (unaccepted, synonym)
410. Species Sargassum dissectifolium Setchell & N.L.Gardner, 1917 (unaccepted)
411. Species Sargassum doriae Grunow, 1884 (unaccepted, synonym)
412. Species Sargassum droserifolium Bory de Saint-Vincent, 1828 (unaccepted, synonym)
413. Species Sargassum duplicatum (J.Agardh) J.Agardh, 1889 (unaccepted, synonym)
414. Species Sargassum duplicatum Bory de Saint-Vincent, 1828 (unaccepted)
415. Species Sargassum echinocarpum J.Agardh, 1848 (unaccepted)
416. Species Sargassum echinocarpum Greville, 1848 (unaccepted, synonym)
417. Species Sargassum elegans Greville, 1849 (unaccepted)
418. Species Sargassum enerve C.Agardh, 1820 (unaccepted)
419. Species Sargassum expansum J.Agardh, 1896 (unaccepted)
420. Species Sargassum fengeri J.Agardh, 1889 (unaccepted)
421. Species Sargassum figarianum Figari & De Notaris, 1853 (unaccepted, synonym)
422. Species Sargassum filicinum Harvey, 1860 (unaccepted)
423. Species Sargassum flaccidum Sonder, 1845 (unaccepted)
424. Species Sargassum flavicans van pervillei Grunow (unaccepted, misspelling)
425. Species Sargassum flexile Greville, 1849 (unaccepted)
426. Species Sargassum flindersii Womersley, 2004 (unaccepted, synonym)
427. Species Sargassum fonanonense Setchell & N.L.Gardner, 1924 (unaccepted)
428. Species Sargassum forsskalii Papenfuss, 1968 (unaccepted, synonym)
429. Species Sargassum fujianensis Bangmei & Tseng, 2002 (unaccepted)
430. Species Sargassum gaudichaudii Montagne, 1842 (unaccepted)
431. Species Sargassum gracile Greville, 1849 (unaccepted)
432. Species Sargassum grande J.Agardh, 1889 (unaccepted)
433. Species Sargassum grevillei (C.Agardh ex Sonder) Kuntze, 1880 (unaccepted)
434. Species Sargassum guardiense Setchell & N.L.Gardner, 1924 (unaccepted, synonym)
435. Species Sargassum gunnianum J.Agardh, 1889 (unaccepted)
436. Species Sargassum halitrichum J.Agardh, 1889 (unaccepted)
437. Species Sargassum hawaiiense Doty & Newhouse, 1966 (unaccepted)
438. Species Sargassum henslowii Greville, 1848 (unaccepted)
439. Species Sargassum heterocystum Montagne, 1842 (unaccepted, synonym)
440. Species Sargassum heteromorphum J.Agardh, 1873 (unaccepted)
441. Species Sargassum heterophyllum C.Agardh, 1820 (unaccepted, synonym)
442. Species Sargassum hybridum Grunow, 1884 (unaccepted, synonym)
443. Species Sargassum hyugaense Yamada, 1942 (unaccepted)
444. Species Sargassum incisum Dickie, 1877 (unaccepted)
445. Species Sargassum insulare Setchell & N.L.Gardner, 1924 (unaccepted, synonym)
446. Species Sargassum isophyllum (Sonder) J.Agardh, 1848 (unaccepted)
447. Species Sargassum ivanii Montagne, 1846 (unaccepted, synonym)
448. Species Sargassum kendrickii N.A.Goldberg & Huisman, 2004 (unaccepted)
449. Species Sargassum kiushianum Yendo, 1907 (unaccepted)
450. Species Sargassum kjellmanianum Yendo, 1907 (unaccepted)
451. Species Sargassum kuetzingianum Grunow, 1888 (unaccepted, synonym)
452. Species Sargassum lanceolatum Greville, 1848 (unaccepted)
453. Species Sargassum leptocarpum Kützing, 1843 (unaccepted)
454. Species Sargassum leptophyllum Greville, 1849 (unaccepted)
455. Species Sargassum lessonianum A.Richard, 1834 (unaccepted, synonym)
456. Species Sargassum linifolium C.Agardh, 1820 (unaccepted, synonym)
457. Species Sargassum longifolium (Turner) C.Agardh, 1820 (unaccepted, synonym)
458. Species Sargassum lunense Caldesi, 1865 (unaccepted)
459. Species Sargassum macdougalii E.Y.Dawson, 1944 (unaccepted)
460. Species Sargassum macracanthum (Kützing) Endlichter, 1843 (unaccepted)
461. Species Sargassum mangarevense (Grunow) Setchell, 1926 (unaccepted)
462. Species Sargassum marchantiae Setchell & N.L.Gardner, 1924 (unaccepted, synonym)
463. Species Sargassum mauritianum Grunow, 1888 (unaccepted, synonym)
464. Species Sargassum megalophyllum Montagne, 1838 (unaccepted)
465. Species Sargassum membranaceum J.Agardh, 1872 (unaccepted)
466. Species Sargassum merrifieldiae J.Agardh, 1889 (unaccepted)
467. Species Sargassum mertensii Endlicher, 1843 (unaccepted)
468. Species Sargassum microcystum Kützing, 1849 (unaccepted, synonym)
469. Species Sargassum micromerum (J.Agardh) J.Agardh, 1896 (unaccepted)
470. Species Sargassum montagnei Bailey, 1851 (unaccepted, synonym)
471. Species Sargassum muriculatum J.Agardh, 1873 (unaccepted)
472. Species Sargassum myriocystum J.Agardh, 1848 (unaccepted)
473. Species Sargassum obovatum Greville, 1849 (unaccepted)
474. Species Sargassum odontocarpum Sonder, 1871 (unaccepted, synonym)
475. Species Sargassum onustum (Mertens) C.Agardh, 1820 (unaccepted)
476. Species Sargassum oocyste J.Agardh, 1848 (unaccepted, synonym)
477. Species Sargassum opacum J.Agardh, 1889 (unaccepted)
478. Species Sargassum ornatum Greville, 1848 (unaccepted)
479. Species Sargassum pachycarpum (Kützing) Endlichter, 1843 (unaccepted)
480. Species Sargassum pergracile Greville, 1849 (unaccepted, synonym)
481. Species Sargassum peronii C.Agardh, 1820 (unaccepted)
482. Species Sargassum petiolatum Grunow, 1884 (unaccepted, synonym)
483. Species Sargassum pinnatifolium (C.Agardh) C.Agardh, 1824 (unaccepted, synonym)
484. Species Sargassum plumosum A.Richard, 1832 (unaccepted)
485. Species Sargassum polyacanthum (Kützing) Endlichter, 1843 (unaccepted)
486. Species Sargassum polycarpum Figari & De Notaris, 1853 (unaccepted, synonym)
487. Species Sargassum porosum Greville, 1849 (unaccepted)
488. Species Sargassum prolongatum Okamura, 1931 (unaccepted, synonym)
489. Species Sargassum pygmaeum Kützing, 1849 (unaccepted)
490. Species Sargassum qingdaoense C.K.Tseng & B.Lu, 2000 (unaccepted)
491. Species Sargassum racemosum Yamada & Segi, 1948 (unaccepted)
492. Species Sargassum rhyncophorum J.Agardh, 1889 (unaccepted)
493. Species Sargassum robustum J.Agardh, 1889 (unaccepted)
494. Species Sargassum rodgersianum Harvey, 1860 (unaccepted, synonym)
495. Species Sargassum rueppellii J.Agardh, 1837 (unaccepted, synonym)
496. Species Sargassum rugulosum (J.Agardh) Kuntze, 1898 (unaccepted, synonym)
497. Species Sargassum sandei Reinbold, 1913 (unaccepted)
498. Species Sargassum scabripes J.Agardh, 1873 (unaccepted)
499. Species Sargassum scoparium (Mertens ex Turner) C.Agardh, 1820 (unaccepted)
500. Species Sargassum setaceum Yendo, 1905 (unaccepted, synonym)
501. Species Sargassum shandongense C.K.Tseng, Z.F.Zhang & B.Lu, 2000 (unaccepted)
502. Species Sargassum sisymbryoides (Turner) C.Agardh, 1824 (unaccepted)
503. Species Sargassum skottsbergii Sjöestedt, 1924 (unaccepted)
504. Species Sargassum sociale (Grunow) Setchell, 1926 (unaccepted)
505. Species Sargassum sonderi (J.Agardh) J.Agardh, 1873 (unaccepted)
506. Species Sargassum sonorense E.Y.Dawson, 1960 (unaccepted)
507. Species Sargassum spathulatum J.Agardh, 1889 (unaccepted)
508. Species Sargassum spathulifolium J.Agardh, 1848 (unaccepted, synonym)
509. Species Sargassum stenophyllum J.Agardh, 1848 (unaccepted)
510. Species Sargassum stolonifolium S.-M.Phang & T.Yoshida, 1997 (unaccepted, synonym)
511. Species Sargassum subalatum Sonder, 1845 (unaccepted)
512. Species Sargassum swartzianum Yendo, 1907 (unaccepted)
513. Species Sargassum tahitense (Grunow) Grunow, 1874 (unaccepted)
514. Species Sargassum tasmanicum Sonder, 1853 (unaccepted)
515. Species Sargassum tenue J.Agardh, 1848 (unaccepted)
516. Species Sargassum tenue (Kützing) Endlichter, 1843 (unaccepted)
517. Species Sargassum tortile (C.Agardh) C.Agardh, 1820 (unaccepted)
518. Species Sargassum trachyphyllum Kützing, 1849 (unaccepted)
519. Species Sargassum trichophyllum J.Agardh, 1889 (unaccepted)
520. Species Sargassum turbinatifolium C.K.Tseng & Lu Baroen, 1979 (unaccepted, synonym)
521. Species Sargassum turbinatum (Linnaeus) C.Agardh, 1820 (unaccepted)
522. Species Sargassum turneri (Kützing) Kuntze, 1880 (unaccepted, synonym)
523. Species Sargassum turneri Yendo, 1916 (unaccepted, synonym)
524. Species Sargassum undulatum J.Agardh, 1872 (unaccepted, synonym)
525. Species Sargassum urvilleanum (A.Richard) A.Richard, 1834 (unaccepted, synonym)
526. Species Sargassum uviferum C.Agardh, 1824 (unaccepted)
527. Species Sargassum validum J.Agardh, 1896 (unaccepted)
528. Species Sargassum varians Sonder, 1845 (unaccepted)
529. Species Sargassum verruculosum C.Agardh, 1820 (unaccepted)
530. Species Sargassum wightii Greville ex J.Agardh, 1848 (unaccepted, synonym)
531. Species Sargassum yamadae Trono, 1994 (unaccepted, synonym)
532. Species Sargassum yemense Figari & De Notaris, 1853 (unaccepted, synonym)
533. Species Sargassum zanardinii Schiffner, 1934 (unaccepted)
534. Species Sargassum acinaria C.Agardh, 1821 (uncertain, nom. illeg.)
535. Species Sargassum elongatum Unknown authority (uncertain)
536. Species Sargassum leptopodum J.Agardh, 1889 (uncertain)
537. Species Sargassum peregrinum Grunow, 1916 (uncertain, uncertain taxonomic status subjected to verification)
538. Species Sargassum plagiophylloides Unknown authority, 1995 (uncertain)
539. Species Sargassum rigidiusculum Unknown, 1995 (uncertain)
540. Species Sargassum sapataense Grunow, 1916 (uncertain, uncertain taxonomic status subjected to verification)
541. Species Sargassum septentrionale C.Agardh, 1823 (uncertain, uncertain taxonomic status subjected to verification)
542. Species Sargassum taeniatum Kuntze, 1880 (uncertain)
543. Species Sargassum vulgare C.Agardh, 1820 (uncertain)

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