1. Species Laurencia aguilar-rosasorum J.N.Norris, 2014
2. Species Laurencia aldingensis Saito & Womersley, 1974
3. Species Laurencia alfredensis Francis, Bolton, Mattio & R.J.Anderson, 2017
4. Species Laurencia arbuscula Sonder, 1845
5. Species Laurencia australis M.Preuss, Diaz-Tapia, Verbruggen & Zuccarello, 2023
6. Species Laurencia batracopus (Bory de Saint-Vincent) Greville, 1830
7. Species Laurencia botrychioides Harvey, 1855
8. Species Laurencia botryocarpa Shperk, 1869
9. Species Laurencia botryoides (C.Agardh) Gaillon, 1828
10. Species Laurencia brachyclados Pilger, 1920
11. Species Laurencia brasiliana Martens, 1871
12. Species Laurencia brongniartii J.Agardh, 1841
13. Species Laurencia caduciramulosa Masuda & Kawaguchi, 1997
14. Species Laurencia californica (Kützing) Kützing, 1865
15. Species Laurencia calliclada Masuda, 1997
16. Species Laurencia calliptera Kützing, 1865
17. Species Laurencia canaliculata J.Agardh
18. Species Laurencia caraibica P.C.Silva, 1972
19. Species Laurencia catarinensis Cordeiro-Marino & Fujii, 1985
20. Species Laurencia chauvinii Bory de Saint-Vincent
21. Species Laurencia chilensis De Toni, Forte & M.A.Howe, 1920
22. Species Laurencia chinensis C.K.Tseng, 1943
23. Species Laurencia chondrioides Børgesen, 1918
24. Species Laurencia cladonioides Kützing
25. Species Laurencia clarionensis Setchell & N.L.Gardner, 1937
26. Species Laurencia claviformis Børgesen, 1924
27. Species Laurencia complanata (Suhr) Kützing, 1849
28. Species Laurencia composita Yamada, 1931
29. Species Laurencia congesta W.R.Taylor, 1945
30. Species Laurencia coronopus J.Agardh, 1852
31. Species Laurencia corymbifera Kützing
32. Species Laurencia corymbosa J.Agardh, 1852
33. Species Laurencia crassifrons P.L.Crouan & H.M.Crouan
34. Species Laurencia cryptoclada Kützing, 1866
35. Species Laurencia cyanosperma (Delile) Gaillon, 1828
36. Species Laurencia cyanosperma Delile ex J.V.Lamouroux, 1813
37. Species Laurencia cylindrica (Kützing) Kützing
38. Species Laurencia cymosa Kützing, 1865
39. Species Laurencia decidua E.Y.Dawson, 1954
40. Species Laurencia decumbens Kützing, 1863
41. Species Laurencia dendroidea J.Agardh, 1852
42. Species Laurencia densissima Setchell & N.L.Gardner, 1937
43. Species Laurencia dichotoma Francis, Bolton, Mattio & R.J.Anderson, 2017
44. Species Laurencia digitatum Francis, Bolton, Mattio & R.J.Anderson, 2017
45. Species Laurencia distichophylla J.Agardh, 1852
46. Species Laurencia elegans A.H.S.Lucas, 1935
47. Species Laurencia epiphylla F.Boisset & J.C.Lino, 1998
48. Species Laurencia fasciculata (Turner) Greville, 1830
49. Species Laurencia fastigiata Montagne, 1846
50. Species Laurencia fenicalli J.N.Norris, 2014
51. Species Laurencia filiformis (C.Agardh) Montagne, 1845
52. Species Laurencia flexuosa Kützing, 1849
53. Species Laurencia foldatsii N.Rodríguez Rios, 1981
54. Species Laurencia forsteri (Mertens ex Turner) Greville, 1830
55. Species Laurencia galtsoffii M.A.Howe, 1934
56. Species Laurencia gardneri Hollenberg, 1943
57. Species Laurencia glandulifera (Kützing) Kützing, 1849
58. Species Laurencia glomerata (Kützing) Kützing, 1849
59. Species Laurencia gracilis J.D.Hooker & Harvey, 1849
60. Species Laurencia griseaviolacea M.J.Wynne, 2017
61. Species Laurencia hamata Yamada, 1932
62. Species Laurencia hancockii E.Y.Dawson, 1944
63. Species Laurencia heteroclada Harvey, 1855
64. Species Laurencia hongkongensis C.K.Tseng, Chang, E.Z.Xia & B.M.Xia, 1980
65. Species Laurencia humilis Setchell & N.L.Gardner, 1930
66. Species Laurencia indica Hauck, 1888
67. Species Laurencia intercalaris K.W.Nam, 1994
68. Species Laurencia intricata J.V.Lamouroux, 1813
69. Species Laurencia iriei J.N.Norris, 2014
70. Species Laurencia irieii J.N.Norris
71. Species Laurencia japonensis T.Abe & Masuda, 1998
72. Species Laurencia johnstonii Setchell & N.L.Gardner, 1924
73. Species Laurencia karachiana Bibi, V.Cassano & Rasheed, 2019
74. Species Laurencia lageniformis Masuda & Suzuki, 1997
75. Species Laurencia lajolla E.Y.Dawson, 1958
76. Species Laurencia laurahuertana Mateo-Cid, Mendoza-González, Senties & Diaz-Larrea, 2014
77. Species Laurencia laxa (R.Brown ex Turner) Gaillon, 1828
78. Species Laurencia ligulata E.Y.Dawson, 1963
79. Species Laurencia longiramea Cassano, G.N.Santos, J.M.C.Nunes, M.C.Oliveira & M.T.Fujii, 2019
80. Species Laurencia mariannensis Yamada, 1931
81. Species Laurencia masonii Setchell & N.L.Gardner, 1930
82. Species Laurencia maxineae E.Y.Dawson, 1944
83. Species Laurencia mcdermidiae I.A.Abbott, 1996
84. Species Laurencia mediocris Setchell & N.L.Gardner, 1937
85. Species Laurencia microcladia Kützing, 1865
86. Species Laurencia minuscula Schnetter, 1976
87. Species Laurencia minuta Vandermeulen, Garbary & Guiry, 1990
88. Species Laurencia moretonensis A.B.Cribb, 1958
89. Species Laurencia multiclavata Francis, Bolton, Mattio & Anderson, 2017
90. Species Laurencia multiflora Kützing, 1865
91. Species Laurencia mutueae Sentíes, Cassano & Dreckmann, 2019
92. Species Laurencia nangii Masuda, 1997
93. Species Laurencia nanhaiensis L.Ding, B.Huang, B.M.Xia & C.K.Tseng, 2007
94. Species Laurencia natalensis Kylin, 1938
95. Species Laurencia nidifica J.Agardh, 1852
96. Species Laurencia nipponica Yamada, 1931
97. Species Laurencia nuda Suhr, 1840
98. Species Laurencia obtusa (Hudson) J.V.Lamouroux, 1813
99. Species Laurencia obtusiuscula Setchell & N.L.Gardner, 1924
100. Species Laurencia okamurae Yamada, 1931
101. Species Laurencia oliveirana Yoneshigue, 1985
102. Species Laurencia omaezakiana Masuda, 1997
103. Species Laurencia oophora Kützing, 1865
104. Species Laurencia oppositocladia W.R.Taylor, 1945
105. Species Laurencia ovalis (Hudson) Frauenfeld
106. Species Laurencia pacifica Kylin, 1941
107. Species Laurencia paitensis W.R.Taylor, 1947
108. Species Laurencia pannosa Zanardini, 1872
109. Species Laurencia parvula Borgesen, 1937
110. Species Laurencia patentissima Kützing, 1865
111. Species Laurencia peninsularis W.R.Taylor, 1945
112. Species Laurencia pinnata Yamada, 1931
113. Species Laurencia platyclada Børgesen, 1934
114. Species Laurencia ptychodes A.B.Cribb, 1983
115. Species Laurencia pumila (Grunow) Papenfuss, 1943
116. Species Laurencia pyramidalis Bory de Saint-Vincent ex Kützing, 1849
117. Species Laurencia pyramidata Bory de Saint-Vincent, 1852
118. Species Laurencia pyrifera (Kützing) Kützing
119. Species Laurencia richardsii E.Y.Dawson, 1954
120. Species Laurencia rigida J.Agardh, 1876
121. Species Laurencia saitoi L.P.Perestenko, 1980
122. Species Laurencia setacea Kützing
123. Species Laurencia shepherdii Saito & Womersley, 1974
124. Species Laurencia silvae J.F.Zhang & B.M.Xia, 1983
125. Species Laurencia similis K.W.Nam & Y.Saito, 1991
126. Species Laurencia singaporensis Zanardini ex De Toni & Levi, 1888
127. Species Laurencia snackeyi (Weber-van Bosse) M.Masuda, 1997
128. Species Laurencia snyderae E.Y.Dawson, 1945
129. Species Laurencia sodwaniensis Francis, Bolton, Mattio & R.J.Anderson, 2017
130. Species Laurencia spicifera Sonder, 1881
131. Species Laurencia spinulifera Kützing, 1865
132. Species Laurencia subcolumnaris Børgesen, 1954
133. Species Laurencia subcorymbosa E.Y.Dawson, 1963
134. Species Laurencia subdisticha E.Y.Dawson, Neushul & Wildman, 1960
135. Species Laurencia subopposita (J.Agardh) Setchell, 1914
136. Species Laurencia subsimplex C.K.Tseng, 1943
137. Species Laurencia succulenta K.W.Nam, 2006
138. Species Laurencia tasmanica Hooker f. & Harvey, 1849
139. Species Laurencia tenera C.K.Tseng, 1943
140. Species Laurencia tenuissima
141. Species Laurencia thyrsifera J.Agardh, 1876
142. Species Laurencia thyrsoides (Turner) Gaillon, 1828
143. Species Laurencia translucida Fujii & Cordeiro-Marino, 1996
144. Species Laurencia tristicha C.K.Tseng, C.F.Chang, E.Z.Xia & B.M.Xia
145. Species Laurencia tropica Yamada, 1931
146. Species Laurencia turbinata Setchell & N.L.Gardner, 1937
147. Species Laurencia uncinata Zanardini, 1847
148. Species Laurencia uvifera (Forsskål) Børgesen, 1932
149. Species Laurencia venusta Yamada, 1931
150. Species Laurencia verruculosa Børgesen, 1954
151. Species Laurencia versicolor (Vahl) J.V.Lamouroux
152. Species Laurencia vieillardii Kützing, 1865
153. Species Laurencia viridis Gil-Rodríguez & Haroun, 1992
154. Species Laurencia voragina W.R.Taylor, 1945
155. Species Laurencia wrightii (Turner) Kützing
156. Species Laurencia affinis Sonder, 1845 accepted as Laurencia filiformis (C.Agardh) Montagne, 1845
157. Species Laurencia amabilis Yamada, 1953 accepted as Palisada amabilis (Yamada) K.W.Nam, 2011
158. Species Laurencia articulata C.K.Tseng, 1943 accepted as Chondrophycus articulatus (C.K.Tseng) K.W.Nam, 1999 (synonym)
159. Species Laurencia baileyana Montagne, 1848 accepted as Chondria baileyana (Montagne) Harvey, 1853
160. Species Laurencia blinksii Hollenberg & I.A.Abbott, 1965 accepted as Osmundea blinksii (Hollenberg & I.A.Abbott) K.W.Nam, 1994
161. Species Laurencia bolivarii N.Rodríguez Rios, 1981 accepted as Osmundea oederi (Gunnerus) G.Furnari, 2008 (synonym)
162. Species Laurencia boryana De Notaris ex J.Agardh, 1842 accepted as Alsidium corallinum C.Agardh, 1827
163. Species Laurencia boryi De Notaris, 1842 accepted as Alsidium corallinum C.Agardh, 1827
164. Species Laurencia brandenii Saito & Womersley, 1974 accepted as Chondrophycus brandenii (Y.Saito & H.B.S.Womersley) K.W.Nam, 1999
165. Species Laurencia caerulescens P.L.Crouan & H.M.Crouan, 1852 accepted as Chondria coerulescens (J.Agardh) Sauvageau, 1897 (synonym)
166. Species Laurencia caespitosa J.V.Lamouroux, 1813 accepted as Osmundea hybrida (A.P.de Candolle) K.W.Nam, 1994
167. Species Laurencia capensis Harvey, 1849 accepted as Chondria capensis (Harvey) Askenasy, 1888
168. Species Laurencia capituliformis Yamada, 1931 accepted as Palisada capituliformis (Yamada) K.W.Nam, 2007
169. Species Laurencia carolinensis Y.Saito, 1969 accepted as Chondrophycus carolinensis (Y.Saito) K.W.Nam, 1999
170. Species Laurencia cartilaginea Yamada, 1931 accepted as Chondrophycus cartilagineus (Yamada) Garbary & J.T.Harper, 1998
171. Species Laurencia caspica A.D.Zinova & Zaberzhinskaya, 1968 accepted as Osmundea caspica (Zinova & Zaberzhinskaya) Maggs & L.M.McIvor, 2017
172. Species Laurencia casuarina J.Agardh, 1896 accepted as Husseya rubra (Harvey) P.C.Silva, 1996
173. Species Laurencia cervicornis Harvey, 1853 accepted as Palisada cervicornis (Harvey) Collado-Vides, Cassano & M.T.Fujii, 2017
174. Species Laurencia ceylanica J.Agardh, 1876 accepted as Chondrophycus ceylanicus (J.Agardh) M.J.Wynne, Serio, Cormaci & G.Furnari, 2005 (synonym)
175. Species Laurencia chondryopsides P.L.Crouan & H.M.Crouan, 1878 accepted as Chondria sedifolia Harvey, 1853 (synonym)
176. Species Laurencia clavata Sonder, 1853 accepted as Corynecladia clavata (Sonder) J.Agardh, 1876
177. Species Laurencia coelenterata D.L.Ballantine & Aponte, 1995 accepted as Osmundea coelenterata (D.L.Ballantine & Aponte) M.T.Fujii, Sentíes & Areces, 2016
178. Species Laurencia columellaris Børgesen, 1945 accepted as Chondrophycus columellaris (Børgesen) E.Coppejans & A.J.K.Millar, 2000 (synonym)
179. Species Laurencia concinna Montagne, 1842 accepted as Laurencia brongniartii J.Agardh, 1841
180. Species Laurencia concreta A.B.Cribb, 1983 accepted as Chondrophycus concretus (A.B.Cribb) K.W.Nam, 1999 accepted as Palisada concreta (A.B.Cribb) K.W.Nam, 2007 (synonym)
181. Species Laurencia corallopsis (Montagne) M.A.Howe, 1918 accepted as Palisada corallopsis (Montagne) Sentíes, Fujii & Díaz-Larrea, 2008 (synonym)
182. Species Laurencia crispa Hollenberg, 1943 accepted as Osmundea crispa (Hollenberg) K.W.Nam, 1984
183. Species Laurencia cruciata Harvey, 1855 accepted as Palisada cruciata (Harvey) K.W.Nam, 2007
184. Species Laurencia crustiformans K.J.McDermid, 1989 accepted as Palisada crustiformans (K.J.McDermid) A.R.Sherwood, A.Kurihara & K.W.Nam, 2017
185. Species Laurencia dasyphylla (Woodward) Greville, 1830 accepted as Chondria dasyphylla (Woodward) C.Agardh, 1817
186. Species Laurencia diegoensis E.Y.Dawson accepted as Osmundea spectabilis var. diegoensis (E.Y.Dawson) K.W.Nam (synonym)
187. Species Laurencia dinhii Masuda & Kogame, 1998 accepted as Palisada dinhii (Masuda & Kogame) K.H.Nam, 2007
188. Species Laurencia divaricata Suhr, 1840 accepted as Caulacanthus ustulatus (Turner) Kützing, 1843
189. Species Laurencia divaricata J.Agardh, 1852 accepted as Laurencia obtusa var. divaricata Yamada, 1931 (synonym)
190. Species Laurencia dotyi Saito, 1969 accepted as Chondrophycus dotyi (Y.Saito) K.W.Nam, 1999
191. Species Laurencia elata (C.Agardh) J.D.Hooker & Harvey, 1847 accepted as Corynecladia elata (C.Agardh) Cassano, M.C.Oliveira & M. T.Fujii, 2019
192. Species Laurencia estebaniana Setchell & Gardner, 1924 accepted as Osmundea estebaniana (Setchell & N.L.Gardner) J.N.Norris, 2014
193. Species Laurencia excelsa Kützing, 1865 accepted as Laurencia tasmanica Hooker f. & Harvey, 1849
194. Species Laurencia fasciculata J.F.Zhang & B.M.Xia, 1980 accepted as Laurencia silvae J.F.Zhang & B.M.Xia, 1983
195. Species Laurencia filiformis J.D.Hooker & Harvey, 1848 accepted as Laurencia gracilis J.D.Hooker & Harvey, 1849
196. Species Laurencia flagellifera J.Agardh, 1852 accepted as Palisada flagellifera (J.Agardh) K.W.Nam, 2007
197. Species Laurencia flagellifera Kützing, 1865 accepted as Laurencia dendroidea J.Agardh, 1852 (synonym)
198. Species Laurencia flexilis Setchell, 1926 accepted as Ohelopapa flexilis (Setchell) F.Rousseau, Martin-Lescanne, Payri & L.Le Gall, 2017
199. Species Laurencia furcata Cordeiro-Marino & M.T.Fujii, 1994 accepted as Palisada furcata (Cordeiro-Marino & M.T.Fujii) Cassano & M.T.Fujii, 2012 (synonym)
200. Species Laurencia fusifolia Hooker fil. & Harvey, 1847 accepted as Chondria fusifolia (Hooker fil. & Harvey) Harvey, 1859
201. Species Laurencia gelatinosa J.V.Lamouroux, 1813 accepted as Laurencia obtusa var. gracilis (C.Agardh) Zanardini, 1847 (synonym)
202. Species Laurencia gemmifera Harvey, 1853 accepted as Yuzurua poiteaui var. gemmifera (Harvey) M.J.Wynne, 2011 (synonym)
203. Species Laurencia grevilleana Harvey, 1855 accepted as Laurencia brongniartii J.Agardh, 1841
204. Species Laurencia hybrida (A.P.de Candolle) T.Lestiboudois, 1827 accepted as Osmundea hybrida (A.P.de Candolle) K.W.Nam, 1994 (synonym)
205. Species Laurencia hypnoides Børgesen, 1932 accepted as Chondria seticulosa (Forsskål) C.Agardh, 1822
206. Species Laurencia implicata J.Agardh, 1852 accepted as Laurencia intricata J.V.Lamouroux, 1813
207. Species Laurencia infestans A.H.S.Lucas, 1919 accepted as Chondria infestans (A.H.S.Lucas) A.J.K.Millar, 1990
208. Species Laurencia intermedia Yamada, 1931 accepted as Chondrophycus intermedius (Yamada) Garbary & J.T.Harper, 1994 accepted as Palisada intermedia (Yamada) K.W.Nam, 2007 (synonym)
209. Species Laurencia intricata Suhr, 1840 accepted as Chondriopsis dasyphylla f. pyrifera J.Agardh, 1863
210. Species Laurencia iridescens M.J.Wynne & D.L.Ballantine, 1991 accepted as Palisada iridescens (M.J.Wynne & D.L.Ballantine) K.W.Nam, 2007 accepted as Yuzurua iridescens (M.J.Wynne & D.L.Ballantine) Sentíes & M.J.Wynne, 2015
211. Species Laurencia japonica Yamada, 1931 accepted as Laurencia okamurae Yamada, 1931
212. Species Laurencia jejuna C.K.Tseng, 1943 accepted as Palisada jejuna (C.K.Tseng) K.W.Nam, 2007
213. Species Laurencia kangjaewonii K.W.Nam & C.H.Sohn, 1994 accepted as Chondrophycus kangjaewonii (K.W.Nam & C.H.Sohn) D.J.Garbary & J.T.Harper, 1998
214. Species Laurencia kuetzingii A.J.K.Millar, 2005 accepted as Laurencia dendroidea J.Agardh, 1852
215. Species Laurencia lacustris Skolka, 1961 accepted as Laurencia caspica A.D.Zinova & Zaberzhinskaya, 1968 accepted as Osmundea caspica (Zinova & Zaberzhinskaya) Maggs & L.M.McIvor, 2017
216. Species Laurencia lata M.A.Howe & W.R.Taylor, 1931 accepted as Osmundea lata (M.A.Howe & W.R.Taylor) Y.Yoneshigue-Valentin, M.T.Fujii & C.F.Gurgel, 2003
217. Species Laurencia longicaulis C.K.Tseng, 1943 accepted as Palisada longicaulis (C.K.Tseng) K.W.Nam, 2007
218. Species Laurencia luxurians (Harvey) J.Agardh, 1876 accepted as Coronaphycus elatus (C.Agardh) Metti, 2015 accepted as Corynecladia elata (C.Agardh) Cassano, M.C.Oliveira & M. T.Fujii, 2019
219. Species Laurencia majuscula (Harvey) A.H.S.Lucas, 1935 accepted as Laurencia dendroidea J.Agardh, 1852
220. Species Laurencia marilzae Gil-Rodríguez, Sentíes, Díaz-Larrea, Cassano & Fujii, 2009 accepted as Laurenciella marilzae (Gil-Rodríguez, Sentíes, Díaz-Larrea, Cassano & M.T.Fujii) Gil-Rodríguez, Sentíes, Díaz-Larrea, Cassano & M.T.Fujii, 2012
221. Species Laurencia maris-rubri K.W.Nam & Saito, 1995 accepted as Palisada maris-rubri (K.W.Nam & Saito) K.W.Nam, 2007
222. Species Laurencia membranacea Harvey, 1844 accepted as Rhodophyllis gunnii (Harvey) Harvey, 1855 accepted as Rhodophyllis membranacea (Harvey) J.D.Hooker & Harvey, 1855
223. Species Laurencia multibulba E.Y.Dawson, Neushul & Wildman, 1960 accepted as Osmundea multibulba (E.Y.Dawson, Neushul & Wildman) K.W.Nam, 1994
224. Species Laurencia nana M.A.Howe, 1920 accepted as Laurencia caraibica P.C.Silva, 1972
225. Species Laurencia obtusata accepted as Laurencia obtusa (Hudson) J.V.Lamouroux, 1813 (misspelling)
226. Species Laurencia osmunda (S.G.Gmelin) Maggs & Hommersand, 1993 accepted as Osmundea osmunda (S.G.Gmelin) K.W.Nam & Maggs, 1994 (synonym)
227. Species Laurencia palisada Yamada, 1931 accepted as Palisada robusta K.W.Nam, 2007
228. Species Laurencia paniculata (C.Agardh) J.Agardh, 1852 accepted as Palisada thuyoides (Kützing) Cassano, Sentíes, Gil-Rodríguez & M.T.Fujii, 2009
229. Species Laurencia paniculata Kützing, 1849 accepted as Palisada paniculata (Kützing) J.N.Norris, 2014
230. Species Laurencia papillosa (C.Agardh) Greville, 1830 accepted as Palisada perforata (Bory) K.W.Nam, 2007 (synonym)
231. Species Laurencia parvipapillata C.K.Tseng, 1946 accepted as Chondrophycus parvipapillatus (C.K.Tseng) Garbary & J.T.Harper, 1998 accepted as Palisada parvipapillata (C.K.Tseng) K.W.Nam, 2007 (synonym)
232. Species Laurencia patentiramea (Montagne) Kützing, 1849 accepted as Palisada patentiramea (Montagne) Cassano, Sentíes, Gil-Rodríguez & M.T.Fujii, 2009
233. Species Laurencia pedicularioides Børgesen, 1933 accepted as Osmundea pedicularioides (Børgesen) G.Furnari, Serio & Cormaci, 2004 (synonym)
234. Species Laurencia pelagiensis Cormaci, G.Furnari & Serio, 1994 accepted as Osmundea pelagiensis G.Furnari, 1994
235. Species Laurencia pelagosae (Schiffner) Ercegovic, 1949 accepted as Osmundea pelagosae (Schiffner) K.W.Nam, 1994 (synonym)
236. Species Laurencia peninsularis Stegenga, Bolton & R.J.Anderson, 1987 accepted as Laurencia griseaviolacea M.J.Wynne, 2017
237. Species Laurencia perforata (Bory de Saint-Vincent) Montagne, 1840 accepted as Palisada perforata (Bory) K.W.Nam, 2007 (synonym)
238. Species Laurencia pinnatifida (Hudson) J.V.Lamouroux, 1813 accepted as Osmundea pinnatifida (Hudson) Stackhouse, 1809
239. Species Laurencia platycephala Kützing, 1865 accepted as Osmundea oederi (Gunnerus) G.Furnari, 2008 (synonym)
240. Species Laurencia poiteaui (J.V.Lamouroux) M.A.Howe, 1918 accepted as Palisada poiteaui (J.V.Lamouroux) K.W.Nam, 2007 accepted as Yuzurua poiteaui (J.V.Lamouroux) Martin-Lescanne, 2010 (synonym)
241. Species Laurencia poitei (J.V.Lamouroux) M.A.Howe accepted as Laurencia poiteaui (J.V.Lamouroux) M.A.Howe, 1918 accepted as Palisada poiteaui (J.V.Lamouroux) K.W.Nam, 2007 accepted as Yuzurua poiteaui (J.V.Lamouroux) Martin-Lescanne, 2010
242. Species Laurencia poteaui (Lamouroux) Howe accepted as Laurencia poiteaui (J.V.Lamouroux) M.A.Howe, 1918 accepted as Palisada poiteaui (J.V.Lamouroux) K.W.Nam, 2007 accepted as Yuzurua poiteaui (J.V.Lamouroux) Martin-Lescanne, 2010 (misspelling)
243. Species Laurencia pygmaea Weber-van Bosse, 1913 accepted as Laurencia decumbens Kützing, 1863
244. Species Laurencia regia (Harvey) Yamada, 1931 accepted as Laurencia arbuscula Sonder, 1845
245. Species Laurencia scammaccae G.Furnari & M.Cormaci, 1989 accepted as Laurencia minuta subsp. scammaccae G.Furnari & Cormaci, 1990 (synonym)
246. Species Laurencia scoparia J.Agardh, 1852 accepted as Laurencia dendroidea J.Agardh, 1852 (synonym)
247. Species Laurencia scrippsensis E.Y.Dawson, 1944 accepted as Osmundea sinicola (Setchell & N.L.Gardner) K.W.Nam, 1994
248. Species Laurencia scrippsiensis E.Y.Dawson, 1944 accepted as Osmundea sinicola (Setchell & N.L.Gardner) K.W.Nam, 1994
249. Species Laurencia seticulosa (Forsskål) Greville, 1830 accepted as Chondria seticulosa (Forsskål) C.Agardh, 1822
250. Species Laurencia sinicola Setchell & N.L.Gardner, 1924 accepted as Osmundea sinicola (Setchell & N.L.Gardner) K.W.Nam, 1994
251. Species Laurencia spectabilis Postels & Ruprecht, 1840 accepted as Osmundea spectabilis (Postels & Ruprecht) K.W.Nam, 1994
252. Species Laurencia splendens Hollenberg, 1943 accepted as Osmundea splendens (Hollenberg) K.W.Nam, 1993
253. Species Laurencia striolata (C.Agardh) Greville, 1830 accepted as Chondria tenuissima var. striolata (C.Agardh) Schiffner, 1938 (synonym)
254. Species Laurencia subculigera Tseng accepted as Laurencia surculigera C.K.Tseng, 1943 accepted as Palisada surculigera (C.K.Tseng) K.W.Nam, 2007 (misspelling)
255. Species Laurencia succisa A.B.Cribb, 1958 (unaccepted)
256. Species Laurencia surculigera C.K.Tseng, 1943 (unaccepted)
257. Species Laurencia tenerrima J.J.Cremades, 1990 (unaccepted, synonym)
258. Species Laurencia thuyoides Kützing, 1865 (unaccepted)
259. Species Laurencia tronoi Gazon-Fortes, 1982 (unaccepted)
260. Species Laurencia truncata Kützing, 1865 (unaccepted, synonym)
261. Species Laurencia tuberculosa J.Agardh, 1852 (unaccepted)
262. Species Laurencia tumida Saito & Womersley, 1974 (unaccepted)
263. Species Laurencia uncinata Kützing, 1849 (unaccepted)
264. Species Laurencia undulata Yamada, 1931 (unaccepted, synonym)
265. Species Laurencia usneoides (C.Agardh) Kützing, 1849 (unaccepted)
266. Species Laurencia vaga Zanardini, 1851 (unaccepted, synonym)
267. Species Laurencia vaga Kützing, 1863 (unaccepted, synonym)
268. Species Laurencia verlaquei Cormaci, G.Furnari & Serio, 1994 (unaccepted)
269. Species Laurencia verticillata J.F.Zhang & B.M.Xia, 1980 (unaccepted)
270. Species Laurencia virgata (C.Agardh) J.Agardh, 1852 (unaccepted)
271. Species Laurencia yamadana M.A.Howe, 1934 (unaccepted)
272. Species Laurencia yendoi Yamada, 1931 (unaccepted)
273. Species Laurencia alsidiiformis Zanardini ex Fraudenfeld, 1855 (uncertain)
274. Species Laurencia alsidioides P.L.Crouan & H.M.Crouan, 1865 (uncertain > taxon inquirendum)
275. Species Laurencia botryocephala Kützing, 1849 (uncertain)
276. Species Laurencia canariensis Montagne ex Kützing, 1849 (uncertain)
277. Species Laurencia clavifera Suhr, 1840 (uncertain)
278. Species Laurencia condaoensis P.H.Hô (uncertain)
279. Species Laurencia depauperata Zanardini (uncertain)
280. Species Laurencia ericoides Kützing (uncertain)
281. Species Laurencia flagelliformis J.Agardh (uncertain)
282. Species Laurencia lutea (Bertoloni) Lamouroux, 1813 (uncertain)
283. Species Laurencia melanothrix (Bory) Kützing (uncertain)
284. Species Laurencia mexicana Kützing (uncertain)
285. Species Laurencia moriformis Kützing, 1865 (uncertain)
286. Species Laurencia nana (C.Agardh) Greville, 1830 (uncertain)
287. Species Laurencia pinnatifida (Gmelin) Lamouroux (uncertain)
288. Species Laurencia pistillaris J.V.Lamouroux, 1822 (uncertain)
289. Species Laurencia radicans (Kützing) Rabenhorst, 1847 (uncertain, uncertain taxonomic status subjected to verification)
290. Species Laurencia stegengae Francis, Bolton, Mattio & R.J.Anderson, 2017 (uncertain, preliminary, not subjected to verification)
291. Species Laurencia thrysoidea Montagne (uncertain)
292. Species Laurencia trifaria Kützing, 1865 (uncertain)
293. Species Laurencia urceolata J.Agardh (uncertain)

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