748 Proceedings. 



The following is a list of genera of fresh-water Algae 

 collected and noted in the Dunedin district during the summers 

 of 1896-97 by Mr. J. S. Tennant, B.Sc. :— 



1. Pleurococcusj 

 2 Palmella 



3. Protococous -Common in all damp places ; walls, fences, Ac. 



4. ChlorococcuH J 



5. Volvox. Clear standing water. 



6. Zygnema. Very common, ditches, ponds, &c. 



7. Spirogyra. Very common, ditches, ponds, &c. 



8. Vaucheria. F'onds, ditches, and damn places. 



9. Ulva I 



10. Monostroma - Tomahawk Lagoon. 



11. Enteromorphaj 



12. Cladophora. Running water. 



13. Conferva. Very common. 



14. CEdogonium. Running water. 



15. Ulothrix. Common on damp ground. 



16. Draparnaldia. Silverstream. 



17. Stigeoclonium. Running water. 



18. Chroococcus. Very common. 



19. Glaeocapsa. Very c^-mmon. 



20. Oscillaria. Running water and damp cliffs. 



21. Lyngbya. Silverstream. 



22. Rivularia. Silverstream. 



