324 Minnesota Algae 



Fig. 3S. Lyngbya versicolor (Wartm.) Gom. (After Gomont) 



Fig. 36. Lyngbya gracilis (Menegh.) Rab. (After Gomont) 



Fig. 37. Lyngbya sordida (Zan.) Gom. (After Gomont) 



Fig. 38. Lyngbya semiplena (C. Ag;.) J. Ag. (After Gomont) 



Fig. 39. Lyngbya confervoides C. Ag. (After Gomont) 



Fig. 40, 41. Lyngbya aestuarii (Mert.) Liebm. (After Gomont) 



Fig. 42. Lyngbya majusciila (Dillw.) Harv. (After Gomont) 



Fig. 43. Lyngbya martensiana Menegh. (After Gomont) 



Fig. 44. Lyngbya martensiana var. calcarea Tilden. (Original) 



Fig. 4S. Lyngbya putealis Mont. (After Gomont) 



Fig. 46. Lyngbya major Menegh. (After Gomont) 



Fig. 47. Lyngbya spirulinoides Gom. (After Gomont) 



Fig. 48. Symploca atlantica Gom. (After Gomont) 



Fig. 49. Symploca hydnoides Kuetz. (After Gomont) 



Fig. so. Symploca laete-viridis Gom. (After Gomont) 



Fig. 51. Symploca thermalis (Kuetz.) Gom. (After Gomont) 



Fig. 52. Symploca dubia (Naeg.) Gom. (After Kuetzing) 



Fig. 53. Symploca muralis Kuetz. (After Gomont) 



Fig. 54. Symploca muscorum (Ag.) Gom. (After Gomont) 



Fig. 55. Porphyrosiphon notarisii (Menegh.) Kuetz. (After Gomont) 



Fig. 56. Hydrocoleus comoides (Harv.) Gom. (After Gomont) 



Fig. 57. Hydrocoleus cantharidosmus (Mont.) (jom. (After Gomont) 



Fig. 58. Hydrocoleus lyngbyaceus Kuetz. (After Gomont) 



Fig. 59. Hydrocoleus glutinosus (Ag.) Gom. (After Kuetzing) 



Fig. 60, 61. Hydrocoleus holdenii Tilden. (After Holden) 



Fig. 62, 63. Hydrocoleus homoeotrichus Kuetz. (After Gomont) 



Fig. 64, 65. Hydrocoleus ravenelii Wolle. (After Wolle) 



Fig. 66. Hydrocoleus heterotrichus Kuetz. (After Gomont) 



PLATE VL 



Fig. I. Hypheothrix calcicola (Ag.) Rab. (After Gomont) 



Fig. 2. Hypheothrix coriacea Kuetz. (After Gomont) 



Fig. 3. Hypheothrix lardacea (Ces.) Hansg. (After Gomont) 



Fig. 4. Hypheothrix arenaria (Berk.) De Toni. (After Gomont) 



Fig. 5. Symplocastrum fragile (Kuetz.) De Toni. (After Gomont) 



Fig. 6. Symplocastrum rubrum (Menegh.) De Toni. (After Gomont) 



Fig. 7-9. Symplocastrum cuspidatum (West and West) De Toni. (After 



W. and G. S. West) 

 Fig. 10. Symplocastrum friesii (Ag.) Kirchn. (After Gomont) 

 Fig. 11-13. Inactis pulvinata Kuetz. (After Kuetzing) 

 Fig. 14, 15. .Inactis fasciculata (Naeg.) Grun. (After Gomont) 

 Fig. 16. Inactis lacustris (A. Br.) De Toni. (After Gomont) 

 Fig. 17. Inactis tlnctoria (Ag.) Thur. (After Gomont) 

 Fig. 18. Inactis hawaiensis (Lemm.) De Toni. (After Lemmermann) 

 Fig. 19. Schizothrix thelephoroides (Mont.) Gom. (After Gomont) 

 Fig. 20, 21. Schizothrix purpurascens (Kuetz.) Gom. (After Gomont) 

 Fig. 22. Schizothrix chalybea (Kuetz.) Gom. (After Gomont) 

 Fig. 23. Schizothrix muelleri Naeg. (After Gomont) 

 Fig. 24. Schizothrix braunii Gom. (After Gomont) 

 Fig. 25. Schizothrix rupicola Tilden. (Original) 

 Fig. 26. Dasygloea amorpha Berk. (After Gomont) 

 Fig. 27. Microcoleus tenerrimus Gom. (After Gomont) 

 Fig. 28. Microcoleus chthonoplastes (Fl. Dan.) Thur. (After Gomont) 

 Fig. 29. Microcoleus vaginatus (Vauch.) Gom. (After Gomont) 

 Fig. 30. Microcoleus paludosus (Kuetz.) Gom. (After Gomont) 

 Fig. 31. Microcoleus pulvinatus Wolle (After Wolle) 

 Fig. 32. Microcoleus subtorulosus (Kuetz.) Gom. (After Gomont) 

 Fig. 33. Catagnymene pelagica Lemm. (After Wille) 

 Fig. 34. Catagnymene spiralis Lemm. (After Wille) 

 Fig. 3.';-37. Nostoc punctiforme (Kuetz.) Hariot (After Sauvageau) 

 Fig. 38. Nostoc paludosum Kuetz. (After Janczewski) 



