1. Species Anabaena abnormis Proskina-Lavrenko & Makarova, 1968
2. Species Anabaena aequalis O.Borge, 1906
3. Species Anabaena aerophila Brabez, 1941
4. Species Anabaena aeruginosa N.L.Gardner, 1927
5. Species Anabaena alatospora Gonzalvez & Kamat, 1959
6. Species Anabaena allahabadii A.K.Mitra, 1951
7. Species Anabaena anisococca Migula, 1905
8. Species Anabaena aspera Frémy, 1930
9. Species Anabaena attenuata Kisselev, 1940
10. Species Anabaena augstumalis Schmidle, 1900
11. Species Anabaena augstumnalis Schmidle, 1900
12. Species Anabaena australica Playfair, 1918
13. Species Anabaena austroafricana Cronberg & Komárek, 2004
14. Species Anabaena azotica Ley, 1959
15. Species Anabaena batophora Frémy, 1930
16. Species Anabaena beckii G.De Toni, 1935
17. Species Anabaena bederi Seckt
18. Species Anabaena belmontica C.G.M.Archibald, 1967
19. Species Anabaena berkeleyana Batters, 1902
20. Species Anabaena bernardinensis Chodat & Zender, 1924
21. Species Anabaena bharadwajae B.N.Prasad, 1951
22. Species Anabaena bolochonceviana Woronichin, 1931
23. Species Anabaena bolochonzewii K.I.Meyer, 1926
24. Species Anabaena bonariensis Seckt, 1922
25. Species Anabaena bornetiana Collins, 1896
26. Species Anabaena broomei Batters, 1891
27. Species Anabaena carmichaelii Cronberg & Komárek, 2004
28. Species Anabaena catenula Kützing ex Bornet & Flahault, 1886
29. Species Anabaena cavanillesiana P.González, 1946
30. Species Anabaena circularis
31. Species Anabaena confervoides Reinsch ex De Toni, 1897
32. Species Anabaena contorta H.Bachmann, 1921
33. Species Anabaena cupressaphila Wolle, 1887
34. Species Anabaena cylindracea N.L.Gardner, 1927
35. Species Anabaena cylindrica Lemmermann, 1896
36. Species Anabaena cylindrospora Tschernov, 1950
37. Species Anabaena delicatissima N.L.Gardner, 1927
38. Species Anabaena discoidea (Schmidle) Ostenfeld, 1908
39. Species Anabaena duplooyae H.Welsh, 1965
40. Species Anabaena echinospora Skuja, 1926
41. Species Anabaena elegans Sant'Anna, 1991
42. Species Anabaena ellipsoidea (Compère) Komárek, 2012
43. Species Anabaena elliptica Lemmermann, 1898
44. Species Anabaena elongata Prescott, 1965
45. Species Anabaena epiphytica N.L.Gardner, 1927
46. Species Anabaena epiphytica Huber-Pestalozzi, 1930
47. Species Anabaena felisii Bornet & Flahault, 1886
48. Species Anabaena fullebornii Schmidle, 1902
49. Species Anabaena fuscovaginata Mares, 2010
50. Species Anabaena galpinii Claassen, 1961
51. Species Anabaena gelatinosa Reinsch, 1866
52. Species Anabaena gerdii E.J.Carpenter & Janson, 2001
53. Species Anabaena ghosei H.Welsh, 1964
54. Species Anabaena glauca Schmidle, 1901
55. Species Anabaena gracilis Messikommer, 1956
56. Species Anabaena gregaria Zakrzewski, 1934
57. Species Anabaena groenlandica H.Bachmann, 1921
58. Species Anabaena hatueyi Komárek, 1988
59. Species Anabaena hieronymi Lemmermann, 1898
60. Species Anabaena hieronymusii Lemmermann, 1898
61. Species Anabaena hollerbachii Obukhova [Obuchova], 1959
62. Species Anabaena huberi De Toni, 1934
63. Species Anabaena humicola Bortels, 1940
64. Species Anabaena hunanensis C.-C.Jao, 1940
65. Species Anabaena hyalina Schmidle, 1901
66. Species Anabaena inaequalis Bornet & Flahault, 1886
67. Species Anabaena incognita H.Welsh, 1964
68. Species Anabaena indica Zeller ex Bornet & Flahault, 1886
69. Species Anabaena irregularis I.F.Lewis, C.Zirkle & R.Patrick, 1933
70. Species Anabaena iyengarii Bharadwaja, 1935
71. Species Anabaena jaubertiana Montagne, 1859
72. Species Anabaena jeejiae Komárek, 2005
73. Species Anabaena jonssonii J.B.Petersen, 1923
74. Species Anabaena kisselevii Proshkina-Lavrenko, 1968
75. Species Anabaena kwangtungensis S.-H.Ley, 1947
76. Species Anabaena lapponica Borge, 1913
77. Species Anabaena laxa A.Braun, 1886
78. Species Anabaena leonardii Compère, 1967
79. Species Anabaena levanderi Lemmermann, 1906
80. Species Anabaena lohammarii Skuja, 1956
81. Species Anabaena manchurica Skvortsov, 1937
82. Species Anabaena marina N.L.Gardner, 1932
83. Species Anabaena marklei J.Copeland, 1936
84. Species Anabaena mediocris N.L.Gardner, 1927
85. Species Anabaena mehrai Vasishta, 1961
86. Species Anabaena mesiana Claassen, 1961
87. Species Anabaena minderi Huber-Pestalozzi, 1938
88. Species Anabaena miniata Skuja, 1956
89. Species Anabaena minima Tschernov, 1950
90. Species Anabaena minuta Borzì, 1892
91. Species Anabaena minutissima Lemmermann, 1898
92. Species Anabaena monilifera Frémy, 1945
93. Species Anabaena multispora P.J.L.Dangeard, 1949
94. Species Anabaena nodularioides Geitler & Ruttner, 1935
95. Species Anabaena novizelandica Skuja, 1976
96. Species Anabaena oblonga De Wildeman, 1897
97. Species Anabaena orientalis S.C.Dixit, 1936
98. Species Anabaena orthogona West, 1892
99. Species Anabaena oscillarioides Bory ex Bornet & Flahault, 1886
100. Species Anabaena papillosa Hirano, 1969
101. Species Anabaena paulseniana J.B.Petersen, 1923
102. Species Anabaena pintoi González Guerrero, 1950
103. Species Anabaena pirinica Petkoff, 1925
104. Species Anabaena poulseniana J.B.Petersen, 1923
105. Species Anabaena promecespora Frémy, 1930
106. Species Anabaena pseudocatenula Claassen, 1961
107. Species Anabaena ralfsii (Kützing) Cooke, 1884
108. Species Anabaena ramakaranae Bharadwaja, 1963
109. Species Anabaena raytonensis Cholnoky, 1955
110. Species Anabaena recta Geitler & Ruttner, 1936
111. Species Anabaena repens Behre, 1956
112. Species Anabaena rhodopensis I.K.Kirjakov & K.N.Velichkova, 2016
113. Species Anabaena robusta Kogan & Yazkuleva [Jazkulijeva], 1970
114. Species Anabaena saaremaaensis Skuja, 1929
115. Species Anabaena salina Alten, 1913
116. Species Anabaena salina Liebetanz, 1925
117. Species Anabaena schauderi H.Welsh, 1961
118. Species Anabaena scheremetievi
119. Species Anabaena sedovii Kossinskaja, 1933
120. Species Anabaena shankargarhii A.K.Varma, 1976
121. Species Anabaena shensiensis C.-C.Jao, 1948
122. Species Anabaena solicola N.V.Kondrateva, 1959
123. Species Anabaena sphaerica Bornet & Flahault, 1886
124. Species Anabaena sphagnicola Tarnavschi & Mitroiu, 1956
125. Species Anabaena spinosa Laloraya & Mitra, 1971
126. Species Anabaena subdelicatula C.-C.Jao, 1940
127. Species Anabaena subvariabilis R.E.M.Archibald, 1967
128. Species Anabaena swakopensis Molinari & Guiry, 2021
129. Species Anabaena tatarica Kossinskaja, 1951
130. Species Anabaena tenuis Messikommer, 1956
131. Species Anabaena thermophila G.H.Schwabe, 1947
132. Species Anabaena toruloides C.G.M.Archibald, 1967
133. Species Anabaena torulosa Lagerheim ex Bornet & Flahault, 1886
134. Species Anabaena tschujskaja Obukhova, 1965
135. Species Anabaena turkestanica (Kisselev) Komárek, 2005
136. Species Anabaena tuzsonii Halász, 1936
137. Species Anabaena vaucheriae C.-C.Jao, 1948
138. Species Anabaena verrucosa J.B.Petersen, 1923
139. Species Anabaena voukii G.De Toni, 1836
140. Species Anabaena wallumensis G.B.McGregor, 2018
141. Species Anabaena welshii Molinari & Guiry, 2021
142. Species Anabaena westii Virieux, 1913
143. Species Anabaena willei N.L.Gardner, 1927
144. Species Anabaena wisconsinensis Prescott, 1944
145. Species Anabaena woodii G.De Toni, 1934
146. Species Anabaena affinis Lemmermann, 1898 accepted as Dolichospermum affine (Lemmermann) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
147. Species Anabaena ambigua C.B.Rao, 1937 accepted as Wollea ambigua (C.B.Rao) R.Y.Singh, 1942
148. Species Anabaena anisococca (Sprengel) Trevisan, 1845 accepted as Nostoc anisococcum Sprengel, 1827
149. Species Anabaena anomala F.E.Fritsch, 1949 accepted as Trichormus anomalus (F.E.Fritsch) Komárek & Anagnostidis, 1989 (synonym)
150. Species Anabaena antarctica F.E.Fritsch, 1912 accepted as Trichormus antarcticus (F.E.Fritsch) Komárek & Anagnostidis, 1989 (synonym)
151. Species Anabaena aphanizomenoides Forti, 1911 accepted as Sphaerospermopsis aphanizomenoides (Forti) Zapomelová, Jezberová, Hrouzek, Hisem, Reháková & Komárková, 2010 (synonym)
152. Species Anabaena arctica Kisselev, 1932 accepted as Dolichospermum arcticum (Kiselev) P.Wacklin, L.Hoffmann & J.Komárek, 2009
153. Species Anabaena azollae Strasburger, 1884 accepted as Trichormus azollae (Strasburger) Komárek & Anagnostidis, 1989 (synonym)
154. Species Anabaena ballygungii Banerji, 1938 accepted as Anabaenopsis ballygungii (Banerji) Komárek & Anagnostidis, 1989 (synonym)
155. Species Anabaena baltica Johs.Schmidt, 1899 accepted as Anabaena spiroides f. baltica (Johs.Schmidt) Pankow, 1965
156. Species Anabaena berezowskii Usačev, 1928 accepted as Dolichospermum berezowskii (Usacev) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
157. Species Anabaena bergii Ostenfeld, 1908 accepted as Chrysosporum bergii (Ostenfeld) E.Zapomelová, O.Skácelová, P.Pumann, R.Kopp & E.Janecek, 2012
158. Species Anabaena bituri Cronberg & Komárek, 2004 accepted as Dolichospermum bituri (Cronberg & Komárek) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
159. Species Anabaena bothae H.Welsh, 1961 accepted as Dolichospermum bothae (H.Welsh) Wacklin, L.Hoffmann & Komárek, 2009
160. Species Anabaena botulus Margalef, 1951 accepted as Trichormus botulus (Margalef) Komárek & Anagnostidis, 1989 (synonym)
161. Species Anabaena bullosa Kützing, 1843 accepted as Fischerella laminosa (Hansgirg ex Bornet & Flahault) Castenholz accepted as Mastigocladus laminosus Cohn ex Kirchner, 1898 (synonym)
162. Species Anabaena calcicola C.Agardh ex Fries, 1835 accepted as Schizothrix calcicola Gomont, 1892 (synonym)
163. Species Anabaena californica O.Borge, 1909 accepted as Anabaena inaequalis Bornet & Flahault, 1886
164. Species Anabaena caspica Ostenfeld, 1901 accepted as Dolichospermum caspicum (Ostenfeld) Wacklin, Hoffmann & Komárek, 2009
165. Species Anabaena chalybea Kützing, 1843 accepted as Nostoc commune Vaucher ex Bornet & Flahault, 1888
166. Species Anabaena circinalis Rabenhorst ex Bornet & Flahault, 1886 accepted as Dolichospermum sigmoideum (Nygaard) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
167. Species Anabaena citrisporum M.Watanabe, 1992 accepted as Dolichospermum citrisporum (M.Watanabe) Wacklin, L.Hoffmann & Komárek, 2009
168. Species Anabaena compacta (Nygaard) Hickel, 1985 accepted as Dolichospermum compactum (Nygaard) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
169. Species Anabaena compacta (Kützing) Trevisan, 1845 accepted as Dolichospermum compactum (Nygaard) P.Wacklin, L.Hoffmann & J.Komárek, 2009
170. Species Anabaena constricta (Szafer) Geitler, 1925 accepted as Johanseninema constrictum (Szafer) Hasler, Dvorák & Poulícková, 2014 (synonym)
171. Species Anabaena crassa (Lemmermann) Komárková-Legnová & Cronberg, 1992 accepted as Dolichospermum crassum (Lemmermann) Wacklin, Hoffmann & Komárek, 2009 (synonym)
172. Species Anabaena curva H.Hill, 1976 accepted as Dolichospermum curvum (H.Hill) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
173. Species Anabaena cycadearum Reinke ex Tilden, 1897 accepted as Trichormus cycadearum (Reinke ex Tilden) Komárek & Anagnostidis, 1989 (synonym)
174. Species Anabaena cylindrospora H.Welsh, 1965 accepted as Anabaena welshii Molinari & Guiry, 2021
175. Species Anabaena danica (Nygaard) Komárková-Legnerová & Eloranta, 1992 accepted as Dolichospermum danicum (Nygaard) P.Wacklin, L.Hoffmann & J.Komárek, 2009
176. Species Anabaena delicatula Lemmermann, 1898 accepted as Dolichospermum delicatulum (Lemmermann) Wacklin, Hoffmann & Komárek, 2009
177. Species Anabaena doliolum Bharadwaja, 1935 accepted as Trichormus doliolum (Bharadwaja) Komárek & Anagnostidis, 1989 (synonym)
178. Species Anabaena ellipsoides Bolochoncev ex Woronichin, 1931 accepted as Dolichospermum ellipsoides (Bolochoncev ex Woronichin) Wacklin, Hoffmann & Komárek, 2009
179. Species Anabaena eucompacta R.Li & M.Watanabe, 1999 accepted as Sphaerospermopsis eucompacta (R.Li & M.M.Watanabe) X.Li & R.Li, 2015
180. Species Anabaena fallax Komárek & Komárková-Legnerová, 2002 accepted as Dolichospermum fallax (Komárek & Komárková-Legnerová) Wacklin, L.Hoffmann & Komárek, 2009
181. Species Anabaena farciminiformis Cronberg & Komárek-Legnerová, 1988 accepted as Dolichospermum farciminiforme (Cronberg & Komárek-Legnerová) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
182. Species Anabaena fertilissima C.B.Rao, 1937 accepted as Trichormus fertilissimus (C.B.Rao) Komárek & Anagnostidis, 1989 (synonym)
183. Species Anabaena flosaquae (Linnaeus) Bory, 1822 accepted as Aphanizomenon flosaquae Ralfs ex Bornet & Flahault, 1886 (synonym)
184. Species Anabaena flos-aquae Brébisson ex Bornet & Flauhault, 1886 accepted as Dolichospermum flosaquae (Brébisson ex Bornet & Flahault) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
185. Species Anabaena fuellebornii Schmidle, 1903 accepted as Macrospermum fuellebornii (Schmidle) Komárek, 2008
186. Species Anabaena fusca H.Hill, 1976 accepted as Dolichospermum fuscum (H.Hill) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
187. Species Anabaena gelatinicola Ghose, 1924 accepted as Trichormus gelatinicola (Ghose) Komárek & Anagnostidis, 1989 (synonym)
188. Species Anabaena gelatinosa F.E.Fritsch, 1939 accepted as Nostoc oryzae (F.E.Fritsch) J.Komárek & K.Anagnostidis, 1989
189. Species Anabaena gelatinosa H.D.Wood, 1869 accepted as Anabaena woodii G.De Toni, 1934
190. Species Anabaena globosa M.Hirano, 1963 accepted as Cyanospira globosa (Hirano) Komárek, 2015
191. Species Anabaena halbfassii H.Bachmann, 1913 accepted as Dolichospermum halbfassii (Bachmann) Wacklin, Hoffmann & Komárek, 2009
192. Species Anabaena hallensis Bornet & Flahault, 1886 accepted as Trichormus hallensis (Bornet & Flahault) Komárek & Anagnostidis, 1989 (synonym)
193. Species Anabaena hansgirgii Schmidle, 1900 accepted as Trichormus hansgirgii (Schmidle) Komárek & Anagnostidis, 1989 (synonym)
194. Species Anabaena hassallii Wittrock ex Lemmermann, 1907 accepted as Dolichospermum circinale (Rabenhorst ex Bornet & Flahault) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (Synnoym)
195. Species Anabaena helicoidea Bernard, 1908 accepted as Dolichospermum helicoideum (Bernard) Wacklin, L.Hoffmann & Komárek, 2009
196. Species Anabaena heterospora Nygaard, 1949 accepted as Dolichospermum heterosporum (Nygaard) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
197. Species Anabaena hoshiarpurensis Vasishta, 1960 accepted as Trichormus hoshiarpurensis (Vasishta) Komárek & Anagnostidis, 1989
198. Species Anabaena humicola Trevisan, 1845 accepted as Cylindrospermum humicola Kützing ex Frank, 1886
199. Species Anabaena impalpabilis Bory, 1822 accepted as (synonym)
200. Species Anabaena incrassata Nygaard, 1929 accepted as Dolichospermum sigmoideum (Nygaard) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
201. Species Anabaena indica G.Beck, 1897 accepted as Anabaena beckii G.De Toni, 1935 (synonym)
202. Species Anabaena intricata (Berkeley) Kützing, 1845 accepted as Nostoc linckia Bornet ex Bornet & Flahault, 1886
203. Species Anabaena isocystoides H.Welsh, 1964 accepted as Trichormus isocystoides (H.Welsh) Komárek & Anagnostidis, 1989 (synonym)
204. Species Anabaena issatschenkoi Usachev, 1938 accepted as Cuspidothrix issatschenkoi (Usachev) P.Rajaniemi, Komárek, R.Willame, P. Hrouzek, K.Kastovská, L.Hoffmann & K.Sivonen, 2005 (synonym)
205. Species Anabaena jacutica Kisselev, 1932 accepted as Dolichospermum jacuticum (Kiselev) Wacklin, L.Hoffmann & Komárek, 2009
206. Species Anabaena kashiensis Bharadwaja, 1935 accepted as Trichormus kashiensis (Bharadwaya) Komárek, 2012 (synonym)
207. Species Anabaena khannae Skuja, 1949 accepted as Trichormus khannae (Skuja) Komárek & Anagnostidis, 1989 (synonym)
208. Species Anabaena kisseleviana Elenkin, 1938 accepted as Sphaerospermopsis kisseleviana (Lemmermann) Zapomelová, Jezberová, Hrouzek, Hisem, Reháková & Komárková, 2010 (synonym)
209. Species Anabaena knipowitschii Usachev, 1927 accepted as Anabaenopsis knipowitschii (Usachev) Komárek, 2005
210. Species Anabaena lemmermannii P.G.Richter, 1903 accepted as Dolichospermum lemmermannii (Richter) P.Wacklin, L.Hoffmann & J.Komárek, 2009 (synonym)
211. Species Anabaena limicola Trevisan, 1845 accepted as Cylindrospermum limicola Kützing ex Wolle, 1887
212. Species Anabaena limicola A.Roemer, 1845 accepted as Anabaena oscillarioides Bory ex Bornet & Flahault, 1886
213. Species Anabaena limnetica G.M.Smith, 1916 accepted as Dolichospermum planctonicum (Brunnthaler) Wacklin, L.Hoffmann & Komárek, 2009
214. Species Anabaena longicellularis (H.Pankow) Komárková-Legnerová & Eloranta, 1992 accepted as Dolichospermum longicellulare (Pankow) Wacklin, Hoffmann & Komárek, 2009
215. Species Anabaena lutea N.L.Gardner, 1927 accepted as Trichormus luteus (N.L.Gardner) Komárek & Anagnostidis, 1989 (synonym)
216. Species Anabaena macrospora Klebahn, 1895 accepted as Dolichospermum macrosporum (Klebhan) Wacklin, L.Hoffmann & Komárek, 2009
217. Species Anabaena major (Kützing) Trevisan, 1845 accepted as Cylindrospermum majus Kützing ex Bornet & Flahault, 1888
218. Species Anabaena manguinii (Bourrelly) Komárek, 2005 accepted as Aphanizomenon manguinii Bourrelly, 1952
219. Species Anabaena maxima Cronberg & Komárek, 2004 accepted as Dolichospermum maximum (Cronberg & Komárek) Wacklin, L.Hoffmann & Komárek, 2009
220. Species Anabaena mendotae W.Trelease, 1889 accepted as Dolichospermum mendotae (W.Trelease) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
221. Species Anabaena minispora M.Watanabe, 1998 accepted as Dolichospermum minisporum (M.Watanabe) Tuji & Niiyama, 2011
222. Species Anabaena minuta H.Welsh, 1964 accepted as Anabaena swakopensis Molinari & Guiry, 2021
223. Species Anabaena mollis Kützing, 1849 accepted as Phormidesmis molle (Gomont) Turicchia, Ventura, Komárková & Komárek, 2009 (synonym)
224. Species Anabaena mucosa Komárková-Legnerová & Eloranta, 1992 accepted as Dolichospermum mucosum (Komárková-Legnerová & Eloranta) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
225. Species Anabaena mysorensis Gonzalves & Kamat, 1959 accepted as Macrospermum mysorense (Gonzalves & Kamat) Komárek, 2008
226. Species Anabaena nathii Vasishta, 1960 accepted as Dolichospermum nathii (Vasishta) Wacklin, L.Hoffmann & Komárek, 2009
227. Species Anabaena naviculoides F.E.Fritsch, 1949 accepted as Trichormus naviculoides (F.E.Fritsch) J.Komárek & K.Anagnostidis, 1989 (synonym)
228. Species Anabaena nygaardii Cronberg & Komárek, 2004 accepted as Dolichospermum nygaardii (Cronberg & Komárek) Wacklin, L.Hoffmann & Komárek, 2009
229. Species Anabaena oryzae F.E.Fritsch, 1949 accepted as Nostoc oryzae (F.E.Fritsch) J.Komárek & K.Anagnostidis, 1989 (synonym)
230. Species Anabaena oumiana M.Watanabe, 1996 accepted as Sphaerospermopsis oumiana (M.Watanabe) Tuji & Niiyama, 2012
231. Species Anabaena ovalisporum Forti, 1911 accepted as Chrysosporum ovalisporum (Forti) E.Zapomelová, O.Skácelová, P.Pumann, R.Kopp & E.Janecek, 2012
232. Species Anabaena parva P.J.Philson, 1939 accepted as Trichormus parvus (P.J.Philson) Komárek & Anagnostidis, 1989 (synonym)
233. Species Anabaena perturbata H.Hill, 1976 accepted as Dolichospermum perturbatum (H.Hill) Wacklin, L.Hoffmann & Komárek, 2009
234. Species Anabaena planctonica Brunnthaler, 1903 accepted as Dolichospermum planctonicum (Brunnthaler) Wacklin, L.Hoffmann & Komárek, 2009 (synonym)
235. Species Anabaena polyspora (Tarnavschi & Mitroiu) Kondratiev, 1968 accepted as Trichormus polysporus (Tarnavschi & Mitroiu) Komárek & Anagnostidis, 1989 (synonym)
236. Species Anabaena portoricensis N.L.Gardner, 1927 accepted as Trichormus portoricensis (N.L.Gardner) Komárek, 2012
237. Species Anabaena propinqua Setchell & N.L.Gardner, 1919 accepted as Trichormus propinquus (Setchell & N.L.Gardner) Komárek & Anagnostidis, 1989 (synonym)
238. Species Anabaena pseudocompacta M.Watanabe, 1996 accepted as Dolichospermum pseudocompactum (M.Watanabe) Wacklin, Hoffmann & Komárek, 2009
239. Species Anabaena pseudoscillatoria Bory de Saint-Vincent, 1822 accepted as Anabaena oscillarioides Bory ex Bornet & Flahault, 1886
240. Species Anabaena pseudovariabilis Woronichin [Voronichin], 1929 accepted as Trichormus pseudovariabilis (Woronichin) Komárek & Anagnostidis, 1989 (synonym)
241. Species Anabaena raciborskii Wołoszyńska, 1912 accepted as Cylindrospermopsis raciborskii (Woloszynska) Seenayya & Subba Raju, 1972 accepted as Raphidiopsis raciborskii (Wołoszyńska) Aguilera, Berrendero Gómez, Kaštovský, Echenique & Salerno, 2018 (synonym)
242. Species Anabaena reniformis Lemmermann, 1898 accepted as Sphaerospermopsis reniformis (Lemmermann) Zapomelová, Jezberová, Hrouzek, Hisem, Reháková & Komárková, 2010 (synonym)
243. Species Anabaena reverdattoana T.G.Popova & Degtereva, 1935 accepted as Trichormus reverdattoanus (T.G.Popova & M.Degterieva) Komárek & Anagnostidis, 1989 (synonym)
244. Species Anabaena rufescens (C.Agardh) Kirchner, 1878 accepted as Nostoc carneum C.Agardh ex Bornet & Flahault, 1886
245. Species Anabaena scheremetieviae Elenkin, 1909 (unaccepted)
246. Species Anabaena siamensis Antarikanonda, 1985 (unaccepted, synonym)
247. Species Anabaena sigmoidea Nygaard, 1950 (unaccepted, synonym)
248. Species Anabaena skujaelaxum Komárek & Zapomelová, 2007 (unaccepted)
249. Species Anabaena smithii (Komárek) M.Watanabe, 1992 (unaccepted)
250. Species Anabaena solitaria Klebahn, 1895 (unaccepted)
251. Species Anabaena spiralis Wm.Thompson, 1840 (unaccepted)
252. Species Anabaena spiroides Klebahn, 1895 (unaccepted, synonym)
253. Species Anabaena stagnalis Kützing, 1843 (unaccepted, synonym)
254. Species Anabaena steloides L.Canabaeus, 1929 (unaccepted, synonym)
255. Species Anabaena subcylindrica Borge, 1921 (unaccepted)
256. Species Anabaena subtropica N.L.Gardner, 1927 (unaccepted, synonym)
257. Species Anabaena tanganyikae G.S.West, 1907 (unaccepted, synonym)
258. Species Anabaena tenericaulis Nygaard, 1950 (unaccepted)
259. Species Anabaena thermalis Vouk, 1916 (unaccepted, synonym)
260. Species Anabaena torques-reginae Komárek, 1984 (unaccepted, synonym)
261. Species Anabaena ucrainica (Schkorbatow) M.Watanabe, 1996 (unaccepted)
262. Species Anabaena unispora N.L.Gardner, 1927 (unaccepted)
263. Species Anabaena utermoehlii Geitler, 1925 (unaccepted)
264. Species Anabaena vaginicola F.E.Fritsch & Rich, 1930 (unaccepted)
265. Species Anabaena variabilis Kützing ex Bornet & Flahault, 1886 (unaccepted, synonym)
266. Species Anabaena viguieri Denis & Frémy, 1924 (unaccepted, synonym)
267. Species Anabaena volzii Lemmermann, 1905 (unaccepted, synonym)
268. Species Anabaena werneri Brunnthaler, 1903 (unaccepted)
269. Species Anabaena zinserlingii Kossinskaja, 1929 (unaccepted)
270. Species Anabaena allantospora Montagne, 1846 (uncertain)
271. Species Anabaena arenicola (Kützing) Trevisan, 1845 (uncertain)
272. Species Anabaena bispora Gayral & Mazancourt, 1958 (uncertain)
273. Species Anabaena borealis E.Larsen, 1907 (uncertain, uncertain taxonomic status subjected to verification)
274. Species Anabaena brevis Kützing, 1845 (uncertain)
275. Species Anabaena calida Kützing, 1849 (uncertain)
276. Species Anabaena chilensis Montagne, 1854 (uncertain)
277. Species Anabaena conglobata (Kützing) Trevisan, 1845 (uncertain)
278. Species Anabaena crispa Roemer, 1845 (uncertain)
279. Species Anabaena cuticularis Brébisson ex Kützing, 1949 (uncertain)
280. Species Anabaena cyanea (Kützing) Trevisan, 1845 (uncertain)
281. Species Anabaena debilis Kützing, 1849 (uncertain)
282. Species Anabaena distans Kützing, 1849 (uncertain)
283. Species Anabaena effusa (Kützing) Trevisan, 1845 (uncertain)
284. Species Anabaena endogena Rabenhorst, 1865 (uncertain)
285. Species Anabaena fragilis Meneghini, 1837 (uncertain)
286. Species Anabaena gigantea H.C.Wood ex Wolle, 1887 (uncertain)
287. Species Anabaena granularis Nägeli ex Kützing, 1849 (uncertain)
288. Species Anabaena hederulae Kützing, 1849 (uncertain)
289. Species Anabaena imperceptibilis (Bory de Saint-Vincent) Trevisan, 1845 (uncertain)
290. Species Anabaena incurva (G.J.Allmann) Trevisan, 1845 (uncertain)
291. Species Anabaena indica Tiwari & Pandey, 1976 (uncertain)
292. Species Anabaena involuta Reinsch, 1876 (uncertain)
293. Species Anabaena kemptii V.Das & Mitra, 1974 (uncertain)
294. Species Anabaena koreana H.S.Kim, 2013 (uncertain, uncertain taxonomic status subjected to verification)
295. Species Anabaena licheniformis Bory de Saint-Vincent, 1822 (uncertain)
296. Species Anabaena maritima P.L.Crouan & H.M.Crouan, 1867 (uncertain)
297. Species Anabaena microscopica Kützing, 1849 (uncertain)
298. Species Anabaena monticulosa Bory ex Bornet & Flahault, 1888 (uncertain)
299. Species Anabaena neapolitana Kützing, 1843 (uncertain)
300. Species Anabaena nodularia Kützing, 1843 (uncertain)
301. Species Anabaena obsoleta Kützing, 1849 (uncertain)
302. Species Anabaena passeriniana De Notaris, 1866 (uncertain)
303. Species Anabaena pulchra Morren, 1835 (uncertain)
304. Species Anabaena punctata Kützing, 1843 (uncertain)
305. Species Anabaena recta (Kützing) Trevisan, 1845 (uncertain)
306. Species Anabaena riparia (Kützing) Trevisan, 1845 (uncertain)
307. Species Anabaena rudis Meneghini, 1837 (uncertain)
308. Species Anabaena sabulosa (Kützing) Trevisan, 1845 (uncertain)
309. Species Anabaena scabra G.Dickie, 1880 (uncertain)
310. Species Anabaena smaragdina Soubeiran, 1858 (uncertain)
311. Species Anabaena spiroides (Woronichin) Elenkin (uncertain)
312. Species Anabaena stillicidiorum Borzì, 1878 (uncertain)
313. Species Anabaena subperanema Bolochonzew, 1911 (uncertain, uncertain taxonomic status subjected to verification)
314. Species Anabaena subrigida De Toni (uncertain, uncertain taxonomic status subjected to verification)
315. Species Anabaena subtilissima Kützing, 1843 (uncertain)
316. Species Anabaena tenax Hooker f. & Harvey, 1847 (uncertain)
317. Species Anabaena tenuis Meneghini, 1837 (uncertain)
318. Species Anabaena terrestris Bory de Saint-Vincent, 1827 (uncertain)
319. Species Anabaena thwaitesii (Harvey) P.Crouan & H.Crouan, 1867 (uncertain)
320. Species Anabaena vialis Kützing, 1845 (uncertain)

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