1. Species Iridaea ciliata Kützing, 1849
2. Species Iridaea convoluta (Areschoug ex J Agardh) Hewitt, 1960
3. Species Iridaea cordata (Turner) Bory, 1826
4. Species Iridaea divise Kützing, 1843
5. Species Iridaea elongata Suhr
6. Species Iridaea explanata Suhr, 1841
7. Species Iridaea gigantea Kützing, 1843
8. Species Iridaea hetercocca Kützing, 1867
9. Species Iridaea lanceolata Harvey, 1855
10. Species Iridaea latissima (J.D.Hooker & Harvey) Grunow, 1867
11. Species Iridaea micrococca Kützing, 1867
12. Species Iridaea parvula (Kjellmann) Papenfuss, 1958
13. Species Iridaea platyna (C.Agardh) Postels & Ruprecht, 1840
14. Species Iridaea remuliformis R.W.Ricker, 1987
15. Species Iridaea tuberculosa (J.D.Hooker & Harvey) Leister, 1993
16. Species Iridaea undulosa Bory de Saint-Vincent, 1825
17. Species Iridaea affinis Postels & Ruprecht, 1840 accepted as Erythrophyllum lacerum (Postels & Ruprecht) Selivanova, Zhigadlova & G.W.Saunders, 2020
18. Species Iridaea agardhiana (Setchell & Gardner) Kylin, 1941 accepted as Mazzaella flaccida (Setchell & N.L.Gardner) Fredericq, 1993
19. Species Iridaea angustinae Bory de Saint-Vincent, 1828 accepted as Iridaea undulosa Bory de Saint-Vincent, 1825
20. Species Iridaea atropurpurea J.Agardh, 1876 accepted as Sarcothalia atropurpurea (J.Agardh) Hommersand, 1993
21. Species Iridaea augustinae Bory de Saint-Vincent, 1828 accepted as Iridaea undulosa Bory de Saint-Vincent, 1825
22. Species Iridaea australasica J.Agardh, 1892 accepted as Sarcothalia radula (Esper) Edyvane & Womersley, 1994
23. Species Iridaea belangeri Bory de Saint-Vincent, 1834 accepted as Phyllymenia belangeri (Bory de Saint-Vincent) Setchell & N.L.Gardner, 1936
24. Species Iridaea binderi J.Agardh ex Kützing, 1849 accepted as Schizymenia binderi (J.Agardh ex Kützing) J.Agardh, 1851 (synonym)
25. Species Iridaea boryana (Setchell & Gardner) Skottsberg, 1941 accepted as Mazzaella laminarioides (Bory) Fredericq, 1993
26. Species Iridaea caespitipes (Setchell & Gardner) Skottsberg, 1941 accepted as Iridaea cordata (Turner) Bory, 1826
27. Species Iridaea californica (J.Agardh) Kylin, 1941 accepted as Mazzaella californica (J.Agardh) G.De Toni, 1936 (synonym)
28. Species Iridaea capensis J.Agardh, 1848 accepted as Mazzaella capensis (J.Agardh) Fredericq, 1993
29. Species Iridaea carnosa (J.Agardh) Kützing, 1849 accepted as Pachymenia carnosa (J.Agardh) J.Agardh, 1876
30. Species Iridaea clathrata Decaisne, 1844 accepted as Gigartina bracteata (S.G.Gmelin) Setchell & N.L.Gardner, 1933 (synonym)
31. Species Iridaea clavellosa Suhr, 1836 accepted as Gigartina fissa (Suhr) J.Agardh, 1876
32. Species Iridaea coriacea (Setchell & Gardner) Scagel, 1957 accepted as Mazzaella splendens (Setchell & N.L.Gardner) Fredericq, 1994 (synonym)
33. Species Iridaea cornea Kützing, 1867 accepted as Pachymenia cornea (Kützing) Chiang, 1970
34. Species Iridaea cornucopiae Postels & Ruprecht, 1840 accepted as Mazzaella laminarioides (Bory) Fredericq, 1993
35. Species Iridaea crispata Bory de Saint-Vincent, 1826 accepted as Sarcothalia crispata (Bory de Saint-Vincent) Leister, 1993
36. Species Iridaea decipiens J.D.Hooker & Harvey, 1845 accepted as Sarcothalia decipiens (J.D.Hooker & Harvey) Hommersand, 1993
37. Species Iridaea dentata Kützing, 1849 accepted as Sarcothalia dichotoma (J.D.Hooker & Harvey) Leister, 1993
38. Species Iridaea dichotoma J.D.Hooker & Harvey, 1845 accepted as Sarcothalia dichotoma (J.D.Hooker & Harvey) Leister, 1993
39. Species Iridaea dubyi (Chauvin) Montagne, 1846 accepted as Schizymenia dubyi (Chauvin ex Duby) J.Agardh, 1851 (synonym)
40. Species Iridaea edulis (Stackhouse) Greville, 1830 accepted as Dilsea carnosa (Schmidel) Kuntze, 1898
41. Species Iridaea erinacea (Turner) Bory, 1834 accepted as Nothogenia erinacea (Turner) P.G.Parkinson, 1983 (synonym)
42. Species Iridaea fimbriata Kützing, 1867 accepted as Halymenia kuetzingii A.J.K.Millar, 2005 (synonym)
43. Species Iridaea fissa Suhr, 1836 accepted as Gigartina fissa (Suhr) J.Agardh, 1876
44. Species Iridaea flaccida (Setchell & N.L.Gardner) P.C.Silva, 1957 accepted as Mazzaella flaccida (Setchell & N.L.Gardner) Fredericq, 1993
45. Species Iridaea fluitans Stackhouse accepted as Iridea fluitans Stackhouse, 1816 accepted as Desmarestia viridis (O.F.Müller) J.V.Lamouroux, 1813 (synonym)
46. Species Iridaea foliifera Harvey, 1859 accepted as Rhodoglossum gigartinoides (Sonder) Edyvane & Womersley, 1993
47. Species Iridaea foliosa Meneghini, 1841 accepted as Neurocaulon foliosum (Meneghini) Zanardini ex Kützing, 1849 (synonym)
48. Species Iridaea fulgens (Setchell & N.L.Gardner) Papenfuss, 1958 accepted as Mazzaella splendens subsp. fulgens (Setchell & N.L.Gardner) Hughey & Hommersand, 2010 (synonym)
49. Species Iridaea furcata (Setchell & N.L.Gardner) Papenfuss, 1958 accepted as Mazzaella phyllocarpa (Postels & Ruprecht) Perestenko, 1996
50. Species Iridaea gigantea J.Agardh, 1899 accepted as Sarcothalia radula (Esper) Edyvane & Womersley, 1994
51. Species Iridaea heterocarpa Postels & Ruprecht, 1840 accepted as Chondrus crispus Stackhouse, 1797 (synonym)
52. Species Iridaea heterococca Kützing, 1867 accepted as Mazzaella laminarioides (Bory) Fredericq, 1993
53. Species Iridaea insignis Endlicher & Diesing, 1845 accepted as Gigartina insignis (Endlicher & Diesing) F.Schmitz, 1896
54. Species Iridaea irregularis Kützing, 1867 accepted as Halichrysis irregularis (Kützing) A.J.K.Millar, 2005 (synonym)
55. Species Iridaea lacera Postels & Ruprecht, 1840 accepted as Erythrophyllum lacerum (Postels & Ruprecht) Selivanova, Zhigadlova & G.W.Saunders, 2020
56. Species Iridaea laminarioides Bory de Saint-Vincent, 1828 accepted as Mazzaella laminarioides (Bory) Fredericq, 1993
57. Species Iridaea lapathifolia Kützing, 1849 accepted as Sarcothalia lapathifolia (Kützing) Leister, 1993
58. Species Iridaea lilacina Postels & Ruprecht, 1840 accepted as Mazzaella phyllocarpa (Postels & Ruprecht) Perestenko, 1996
59. Species Iridaea linearis (Setchell & N.L.Gardner) Kylin, 1941 accepted as Mazzaella linearis (Setchell & N.L.Gardner) Fredericq, 1993
60. Species Iridaea lusoria (Greville) Harvey, 1855 accepted as Pachymenia lusoria (Greville) J.Agardh, 1876
61. Species Iridaea macrodonta Skottsberg, 1923 accepted as Iridaea cordata (Turner) Bory, 1826
62. Species Iridaea marginata (Roussel) Endlicher, 1843 accepted as Felicinia marginata (Roussel) Manghisi, Le Gall, Ribera, Gargiulo & Morabito, 2014 (synonym)
63. Species Iridaea membranacea J.Agardh, 1872 accepted as Mazzaella membranacea (J.Agardh) Fredericq, 1993
64. Species Iridaea mertensiana Postels & Ruprecht, 1840 accepted as Turnerella mertensiana (Postels & Ruprecht) F.Schmitz, 1893
65. Species Iridaea micans Bory de Saint-Vincent, 1825 accepted as Iridaea cordata (Turner) Bory, 1826
66. Species Iridaea minor J.Agardh, 1849 accepted as Mazzaella flaccida (Setchell & N.L.Gardner) Fredericq, 1993
67. Species Iridaea montagnei Bory de Saint-Vincent, 1846 accepted as Halymenia montagnei (Bory) Bertoloni, 1862
68. Species Iridaea oblongifructa Setchell, 1901 accepted as Erythrophyllum oblongifructum (Setchell) G.W.Saunders, 2017
69. Species Iridaea obovata Kützing, 1849 accepted as Iridaea cordata (Turner) Bory, 1826
70. Species Iridaea obtusiloba E.S.Sinova, 1940 accepted as Chondrus yendoi Yamada & Mikami, 1965
71. Species Iridaea orbitosa Suhr, 1840 accepted as Pachymenia orbitosa (Suhr) L.K.Russell, 2009
72. Species Iridaea oregona (Doty) Papenfuss, 1958 accepted as Mazzaella oregona (Doty) Hughey, P.C.Silva & Hommersand, 2001
73. Species Iridaea ornata Postels & Ruprecht, 1840 accepted as Opuntiella ornata (Postels & Ruprecht) A.D.Zinova, 1972
74. Species Iridaea papillata (C.Agardh) Greville, 1830 accepted as Mastocarpus papillatus (C.Agardh) Kützing, 1843 (synonym)
75. Species Iridaea papillosa Bory de Saint-Vincent, 1826 accepted as Sarcothalia papillosa (Bory de Saint-Vincent) Leister, 1993
76. Species Iridaea parksii (Setchell & N.L.Gardner) Papenfuss, 1958 accepted as Mazzaella parksii (Setchell & N.L.Gardner) Hughey, P.C.Silva & Hommersand, 2001
77. Species Iridaea phyllocarpa Postels & Ruprecht, 1840 accepted as Mazzaella phyllocarpa (Postels & Ruprecht) Perestenko, 1996
78. Species Iridaea pinnata Postels & Ruprecht, 1840 accepted as Grateloupia postelsii P.G.Parkinson, 1974
79. Species Iridaea polycarpa Harvey, 1860 accepted as Rhodoglossum gigartinoides (Sonder) Edyvane & Womersley, 1993
80. Species Iridaea prolifera (J.Agardh) De Toni, 1897 accepted as Rhodoglossum gigartinoides (Sonder) Edyvane & Womersley, 1993
81. Species Iridaea proliferans Skottsberg, 1953 accepted as Iridaea cordata (Turner) Bory, 1826
82. Species Iridaea punicea Postels & Ruprecht, 1840 accepted as Turnerella mertensiana (Postels & Ruprecht) F.Schmitz, 1893
83. Species Iridaea pustulosa Postels & Ruprecht, 1840 accepted as Velatocarpus pustulosus (Postels & Ruprecht) Perestenko, 1988
84. Species Iridaea radula (Esper) Bory de Saint-Vincent, 1828 accepted as Sarcothalia radula (Esper) Edyvane & Womersley, 1994
85. Species Iridaea reediae (Setchell & N.L.Gardner) Papenfuss, 1958 accepted as Mazzaella splendens (Setchell & N.L.Gardner) Fredericq, 1994
86. Species Iridaea rosea Kylin, 1941 accepted as Mazzaella rosea (Kylin) Fredericq, 1993
87. Species Iridaea ruprechtiana E.S.Sinova, 1940 accepted as Cirrulicarpus ruprechtianus (E.S.Sinova) Perestenko, 1996
88. Species Iridaea sanguinea (Setchell & N.L.Gardner) Hollenberg & I.A.Abbott, 1965 accepted as Mazzaella sanguinea (Setchell & N.L.Gardner) Hommersand, 1994
89. Species Iridaea sinicola (Setchell & N.L.Gardner) Papenfuss, 1958 accepted as Mazzaella splendens (Setchell & N.L.Gardner) Fredericq, 1994
90. Species Iridaea socialis Postels & Ruprecht, 1840 accepted as Dilsea socialis (Postels & Ruprecht) Perestenko, 1996
91. Species Iridaea splendens (Setchell & N.L.Gardner) Papenfuss, 1958 accepted as Mazzaella splendens (Setchell & N.L.Gardner) Fredericq, 1994
92. Species Iridaea volans (C.Agardh) Greville accepted as Mazzaella volans (C.Agardh) Fredericq, 1993
93. Species Iridaea whidbeyana (Setchell & N.L.Gardner) Scagel, 1957 accepted as Mazzaella sanguinea (Setchell & N.L.Gardner) Hommersand, 1994
94. Species Iridaea divisa Kützing, 1843 (uncertain)
95. Species Iridaea mawsonii A.H.S.Lucas, 1919 (uncertain)

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