1. Species Staurosira aequalis
2. Species Staurosira capucina Borzsc.
3. Species Staurosira catamarcensis Grana, E. Morales, Maidana & Ector, 2018
4. Species Staurosira circula Van de Vijver & Beyens
5. Species Staurosira contorta R.J. Flower, 2005
6. Species Staurosira inflata (Heiden) A.Rusanov, Ács, E. Morales & Ector in Rusanov et al., 2018
7. Species Staurosira kjotsunarum E.Morales, M.H.Novais & L.Ector, 2012
8. Species Staurosira longirostris (Frenguelli) Metzeltin, Lange-Bertalot & García-Rodríguez
9. Species Staurosira longwanensis P.Rioual, Morales & Ector, 2014
10. Species Staurosira magallanesica Garcia, Maidana, Ector & Morales, 2018
11. Species Staurosira neoproducta (Lange-Bertalot) Chudaev & Gololobova, 2012
12. Species Staurosira oldenburgioides (Lange-Bertalot) M.S.Kulikovskiy, Lange-Bert & A.Witkowski in Kulikovskiy et al., 2010
13. Species Staurosira pottiezii B.Van de Vijver, 2014
14. Species Staurosira proboscoidea Lange-Bertalot & Rumrich, 2000
15. Species Staurosira vandenbusscheana Van de Vijver in Van de Vijver et al., 2020
16. Species Staurosira viereckiana (Gerd Moser) C.E.Wetzel & E.Morales, 2019
17. Species Staurosira acutirostrata (Metzeltin & Lange-Bertalot) D. Metzeltin & H. Lange-Bertalot in D. Metzeltin, H. Lange-Bertalot & F. García-Rodríguez, 2005 accepted as Staurosirella acutirostrata (Metzeltin & Lange-Bertalot) Almeida & Wetzel, 2015 (unaccepted > junior objective synonym)
18. Species Staurosira altiplanensis H. Lange-Bertalot & Rumrich in U. Rumrich, H. Lange-Bertalot & M. Rumrich, 2000 accepted as Pseudostaurosira altiplanensis (Lange-Bertalot & Rumrich in Rumrich et al.) E.Morales in Garcia et al., 2017 (unaccepted > superseded combination)
19. Species Staurosira brevistriata (Grunow) Grunow accepted as Fragilaria brevistriata Grunow, 1885
20. Species Staurosira construens Ehrenberg, 1843 accepted as Fragilaria construens (Ehrenberg) Grunow, 1862
21. Species Staurosira crassa (Metzeltin & Lange-Bertalot) Metzeltin, Lange-Bertalot & García-Rodríguez, 2005 accepted as Staurosirella crassa (Metzeltin & Lange-Bertalot) F.C.P. Ribeiro & L.C. Torgan in Ribeiro et al., 2010 (unaccepted > junior objective synonym)
22. Species Staurosira grunowii Pantocsek, 1892 † accepted as  †
23. Species Staurosira harrisonii (Roper) Grunow, 1877 accepted as Staurosirella leptostauron (Ehrenberg) D.M.Williams & Round, 1987 accepted as Biblarium leptostauron Ehrenberg, 1854 (synonym)
24. Species Staurosira laucensis H. Lange-Bertalot & Rumrich in U. Rumrich, H. Lange-Bertalot & M. Rumrich, 2000 accepted as Pseudostaurosira laucensis (Lange-Bertalot & U.Rumrich) E.A.Morales & Vis, 2007 (unaccepted > superseded combination)
25. Species Staurosira opacolineata (Lange-Bertalot) Witon, Lange-Bertalot & Witkowski in Witon et al., 2004 accepted as Pseudostaurosira opacolineata (Lange-Bertalot in Lange-Bertalot & Metzeltin) M.L.García & Maidana, 2017 (unaccepted > junior objective synonym, synonym)
26. Species Staurosira patagonica Garcia, Maidana, Ector & Morales, 2017 accepted as Staurosira magallanesica Garcia, Maidana, Ector & Morales, 2018 (Later homonym)
27. Species Staurosira acuta Ehrenberg (uncertain > unassessed)
28. Species Staurosira ambigua E.A. Morales, M.B. Edlund & S.A. Spaulding, 2010 (uncertain > unassessed)
29. Species Staurosira amphilepta Ehrenberg, 1854 (uncertain > unassessed)
30. Species Staurosira anomala (W. Smith) Leuduger-Fortmoral, 1878 (uncertain > unassessed)
31. Species Staurosira astraea (uncertain > unassessed)
32. Species Staurosira aventralis Lange-Bertalot & Rumrich, 2000 (uncertain > unassessed)
33. Species Staurosira berolinensis (Lemmerman) Lange-Bertalot (uncertain > unassessed)
34. Species Staurosira bidens (Heiberg) Grunow, 1882 accepted as Fragilaria bidens f. bidens Heiberg, 1863 (uncertain > unassessed)
35. Species Staurosira borealis (Foged) Witkowski, Lange-Bertalot & Witon in Witon et al., 2004 (uncertain > unassessed)
36. Species Staurosira contracta (Schumann) Petit, 1877 (uncertain > unassessed)
37. Species Staurosira dimorpha E.A. Morales, M.B. Edlund & S.A. Spaulding, 2010 (uncertain > unassessed)
38. Species Staurosira dubia Grunow, 1879 (uncertain > unassessed)
39. Species Staurosira elliptica (Schumann) Cleve & Möller, 1879 accepted as Fragilaria elliptica f. elliptica Schumann, 1867 (uncertain > unassessed)
40. Species Staurosira epidendrum Ehrenberg, 1854 (uncertain > unassessed)
41. Species Staurosira gongyla Krishtofovich, 1941 (uncertain > unassessed)
42. Species Staurosira harrisonii (W. Smith) Pfitzer, 1871 (uncertain > unassessed)
43. Species Staurosira hyemalis (Kützing) Petit, 1878 (uncertain > unassessed)
44. Species Staurosira incerta E.A. Morales, 2006 (uncertain > unassessed)
45. Species Staurosira intermedia (Grunow) Grunow, 1882 accepted as Fragilaria mutabilis var. intermedia Grunow, 1862 accepted as Fragilaria intermedia (Grunow) Grunow in Van Heurck, 1881 (uncertain > unassessed)
46. Species Staurosira islandica (Grunow in Van Heurck) Pelletan, 1889 accepted as Fragilaria islandica var. islandica Grunow in Van Heurck, 1881 (uncertain > unassessed)
47. Species Staurosira jolinae Van de Vijver accepted as Punctastriata jolinae (Van de Vijver in Van de Vijver & Beyens) M.L.García, Maidana & Van de Vijver, 2017 (uncertain > unassessed)
48. Species Staurosira kavnensis Pantocsek, 1889 (uncertain > unassessed)
49. Species Staurosira lancettula Schumann (uncertain > unassessed)
50. Species Staurosira mercedes H. Lange-Bertalot & Rumrich in U. Rumrich, H. Lange-Bertalot & M. Rumrich, 2000 (uncertain > unassessed)
51. Species Staurosira mesodon Cleve & Grunow, 1880 (uncertain > unassessed)
52. Species Staurosira mesolepta (Rabenhorst) Cleve & Möller, 1879 accepted as Fragilaria mesolepta Rabenhorst, 1861 (uncertain > unassessed)
53. Species Staurosira mexicana Ehrenberg, 1854 (uncertain > unassessed)
54. Species Staurosira microstriata (Marciniak) H. Lange-Bertalot in U. Rumrich, H. Lange-Bertalot & M. Rumrich, 2000 accepted as Fragilaria microstriata Marciniak, 1982 (uncertain > unassessed)
55. Species Staurosira mormonorum (Grunow in Van Heurck) Pantocsek, 1889 accepted as Fragilaria brevistriata var. mormorum Grunow in Van Heurck, 1881 (uncertain > unassessed)
56. Species Staurosira mormonorum (Grunow) Grunow, 1882 (uncertain > unassessed)
57. Species Staurosira mutabilis (W.Smith) Pfitzer, 1871 accepted as Odontidium mutabile var. mutabile W. Smith, 1856 (uncertain > unassessed)
58. Species Staurosira niagarae Hollerbakh & Krasavina, 1971 (uncertain > unassessed)
59. Species Staurosira obtusa (Hustedt) M.Garcia, 2006 accepted as Fragilaria obtusa Hustedt, 1956 (uncertain > unassessed)
60. Species Staurosira parasitica (W.Smith) Petit, 1877 accepted as Odontidium parasiticum var. parasiticum W. Smith, 1856 (uncertain > unassessed)
61. Species Staurosira parasitoides H. Lange-Bertalot, R. Schmidt & R. Klee in R. Schmidt et al., 2004 accepted as Pseudostaurosira parasitoides (Lange-Bertalot, Rol.Schmidt & Klee in Schmidt et al.) E.Morales, M.L.García & Maidana, 2017 (uncertain > unassessed)
62. Species Staurosira patagonica Cleve, 1881 (uncertain > unassessed)
63. Species Staurosira pinnata Ehrenberg, 1843 (uncertain > unassessed)
64. Species Staurosira producta (Lagerstedt) Grunow, 1882 accepted as Fragilaria aequalis var. producta Lagerstedt, 1873 (uncertain > unassessed)
65. Species Staurosira punctiformis Witkowski, Metzeltin & Lange-Bertalot, 2000 (uncertain > unassessed)
66. Species Staurosira reimeri E.A.Morales, K.M.Manoylov & L.L.Bahls, 2010 accepted as Stauroforma reimeri (E.Morales, Manoylov & Bahls) E.Morales, 2017 (uncertain > unassessed)
67. Species Staurosira smithiana Grunow in Van Heurck, 1881 (uncertain > unassessed)
68. Species Staurosira stevensonii Manoylov, Morales & Stoermer, 2003 (uncertain > unassessed)
69. Species Staurosira tabellaria (W.Smith) Leuduger-Fortmorel, 1878 accepted as Odontidium tabellaria var. tabellaria W. Smith, 1856 (uncertain > unassessed)
70. Species Staurosira tricarinata Ehrenberg, 1854 (uncertain > unassessed)
71. Species Staurosira trigongyla Ehrenberg, 1843 (uncertain > unassessed)
72. Species Staurosira ungeriana (uncertain > unassessed)
73. Species Staurosira vasta Pantocsek, 1892 (uncertain > unassessed)
74. Species Staurosira venter (Ehrenberg) Cleve & Moeller, 1879 accepted as Fragilaria venter var. venter Ehrenberg, 1854 (uncertain > unassessed)

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