1. Species Pleurostachys angustifolia Boeckeler accepted as Rhynchospora pilulifera Bertol.
2. Species Pleurostachys arrojadii H.Pfeiff. accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
3. Species Pleurostachys beyrichii (Nees) Steud. accepted as Rhynchospora fluminensis L.B.Sm.
4. Species Pleurostachys bracteolata C.B.Clarke accepted as Rhynchospora exaltata Kunth
5. Species Pleurostachys bradei R.Gross accepted as Rhynchospora bradei (R.Gross) W.W.Thomas
6. Species Pleurostachys buchtienii Kük. accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
7. Species Pleurostachys cimaensis H.Pfeiff. accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
8. Species Pleurostachys densifoliata H.Pfeiff. accepted as Rhynchospora distichophylla Boeckeler
9. Species Pleurostachys distichophylla (Boeckeler) C.B.Clarke accepted as Rhynchospora distichophylla Boeckeler
10. Species Pleurostachys douglasii C.B.Clarke accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
11. Species Pleurostachys elegans Kunth accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
12. Species Pleurostachys extenuata (Nees) Steud. accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
13. Species Pleurostachys floribunda Kunth accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
14. Species Pleurostachys foliosa Kunth accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
15. Species Pleurostachys gaudichaudii Brongn. accepted as Rhynchospora gaudichaudii (Brongn.) L.B.Sm.
16. Species Pleurostachys geraldiana Davie accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
17. Species Pleurostachys gracilis Boeckeler accepted as Rhynchospora pilulifera Bertol.
18. Species Pleurostachys graminifolia Brongn. accepted as Rhynchospora pilulifera Bertol.
19. Species Pleurostachys grandifolia Boeckeler accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
20. Species Pleurostachys guianensis Uittien accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
21. Species Pleurostachys kuhlmannii Kük. accepted as Calyptrocarya glomerulata (Brongn.) Urb.
22. Species Pleurostachys kunthiana C.B.Clarke accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
23. Species Pleurostachys latifolia H.Pfeiff. accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
24. Species Pleurostachys loefgrenii (Boeckeler) T.Koyama accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
25. Species Pleurostachys longa Lindm. accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
26. Species Pleurostachys longiradiata Palla accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
27. Species Pleurostachys luetzelburgiana H.Pfeiff. accepted as Rhynchospora atlantica W.W.Thomas
28. Species Pleurostachys macrantha Kunth accepted as Rhynchospora macrantha (Kunth) W.W.Thomas
29. Species Pleurostachys martiana (Nees) Steud. accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
30. Species Pleurostachys millegrana (Nees) Steud. accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
31. Species Pleurostachys montana Palla accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
32. Species Pleurostachys orbignyana Brongn. accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
33. Species Pleurostachys panicoides (H.Pfeiff.) H.Pfeiff. accepted as Rhynchospora fluminensis L.B.Sm.
34. Species Pleurostachys paniculata Boeckeler accepted as Rhynchospora fluminensis L.B.Sm.
35. Species Pleurostachys pauloensis Palla accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
36. Species Pleurostachys pearcei C.B.Clarke accepted as Rhynchospora pearcei (C.B.Clarke) W.W.Thomas
37. Species Pleurostachys peruviana C.B.Clarke accepted as Rhynchospora peruviana (C.B.Clarke) W.W.Thomas
38. Species Pleurostachys pilulifera (Bertol.) Longhi-Wagner, Baldini & A.C.Araújo accepted as Rhynchospora pilulifera Bertol.
39. Species Pleurostachys puberula Boeckeler accepted as Rhynchospora orbignyana (Brongn.) L.B.Sm.
40. Species Pleurostachys schottmuelleri (Boeckeler) Kük. accepted as Rhynchospora pilulifera Bertol.
41. Species Pleurostachys sellowii Kunth accepted as Rhynchospora foliosa (Kunth) L.B.Sm.
42. Species Pleurostachys sparsiflora Kunth accepted as Rhynchospora sparsiflora (Kunth) L.B.Sm.
43. Species Pleurostachys tenuiflora Brongn. accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
44. Species Pleurostachys turbinata (Nees) H.Pfeiff. accepted as Rhynchospora tenuiflora (Brongn.) L.B.Sm.
45. Species Pleurostachys undulatifolia R.Gross accepted as Rhynchospora gaudichaudii (Brongn.) L.B.Sm.
46. Species Pleurostachys arcuata W.W.Thomas, M.Alves & R.Trevis. (uncertain > unassessed)
47. Species Pleurostachys boliviana Palla (uncertain > unassessed)
48. Species Pleurostachys calyptrocaryoides R.Gross (uncertain > unassessed)
49. Species Pleurostachys dusenii (H.Pfeiff.) H.Pfeiff. (uncertain > unassessed)
50. Species Pleurostachys glabra (uncertain > unassessed)
51. Species Pleurostachys hoehneana R.Gross (uncertain > unassessed)
52. Species Pleurostachys muelleri Boeckeler (uncertain > unassessed)
53. Species Pleurostachys paludosus H.Pfeiff. (uncertain > unassessed)
54. Species Pleurostachys paranensis Palla (uncertain > unassessed)
55. Species Pleurostachys polygonatum Palla (uncertain > unassessed)
56. Species Pleurostachys rabenii Boeckeler (uncertain > unassessed)
57. Species Pleurostachys regnellii C.B.Clarke (uncertain > unassessed)
58. Species Pleurostachys robusta Palla (uncertain > unassessed)
59. Species Pleurostachys scaposa C.B.Clarke (uncertain > unassessed)
60. Species Pleurostachys spicata Boeckeler (uncertain > unassessed)
61. Species Pleurostachys stricta Kunth (uncertain > unassessed)
62. Species Pleurostachys ulei Boeckeler (uncertain > unassessed)
63. Species Pleurostachys urvillei Brongn. (uncertain > unassessed)
64. Species Pleurostachys ypirangensis (H.Pfeiff.) H.Pfeiff. (uncertain > unassessed)

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