INDEX 



Achnanthacese, 50. 

 Achnanthes, 50. 



„ brevipes, 50. 



„ „ var. intermedia, 50. 



„ suisessilis (syn.), 50. 



Algse of Shackleton's expedition, 1, 2, (i. 

 Algal flora, freshwater, of Kerguelen, 3, fi ; of 

 South Georgia,3, 6 ; of South Orkneys, 1,?>, 0. 

 Alpine Algse in the Antarctic, 5. 

 Anabcma, 3, 43. 



,, antarctica, 4, 43. 

 ,, catenula, 44. 

 „ „ var. amerieana, 44. 



Anacyntis jjarasitica (syn.), 24. 

 Antarctic Algaj, freshwater, 1 ; comparison 



with Arctic freshwater Algse, 4. 

 Aphanofhece, 23. 



„ jjrasiim, 23. 

 BacillarieEe, 4fl. 

 Calothrix, 3, 30. 



„ antarctica, 4, 30. 



„ cartilaginea, 38. 



., epiphytica, 37. 



„ fusca, 36. 



,, gracilis, 4, 37. 



„ intricata, 4, 36. 



., sandvirensis, 30, 38. 



sp. (W. and G. S. West), 37. 

 CentricEe, 4. 



Chlamydomonadaceffi, 2, 7. 

 Chlamydomonas, 4, 7, 10. 



caudata, 4, 7. 

 ehrenhergi, 5, 7, 10. 

 gigantea, 9. 



intermedia, 5, 7, 9, 10, 32. 

 „ f. antarctim, 10. 

 marina, 9. 



subcaudata, 5, 6, 7, 32 ; cyst- 

 formation of, 0, 8. 

 OMorella, 16. 



„ conglomerata, 16. 

 ,, regtilaris, 16. 



Cliloromonas, 10. 



,, alpina, 5, 10. 



Chroococcacese, 3, 6, 21. 

 Chroococciis, 3, 21. 



., helveticus, 22. 



„ minjar, 4, 22. 



„ minutus, 4, 21. 



., turgidus, 21. 



Coujugatffi, 2, 3, 6, 20 ; occurrence of, in fresh- 

 water algal flora of Antarctic, 3, 6. 

 Coscinodiscacese, 40. 

 Coscinodiscus, 47. 



„ decipiens, 47. 



„ griseus, 47. 



„ „ var. gallapagensis, 47. 



„ lacustris, 47. 



Cuticularia (sect. Nostoc), key to species of, 41. 

 Cyanophycese, 2, 21 ; abundance of, in Ant- 

 arctic regions, 2, 3 ; heterocystoi:s forms, 

 3, ; representation in Arctic regions, 4. 

 Cyanophyceous sheets, 3 ; epiphytic flora 



of, 3, 4. 

 Cyclotella, 47. 



„ operctdata, 47. 

 Dactylococcopsis, 22. 



„ antarctica, 22. 



,, montana, 23. 



„ mucicola, 23. 



„ rhaphidioides, 4, 22. 



Denticula, 49. 



„ /rM/«rfffl (syn.), 49. 

 „ inflata (syn.), 49. 

 „ tenuis, 49. 



„ „ var. antarctica, 49 ; var. /n- 



^rj'ift, 49 ; var. inflata, 49. 

 Desmids, in Antarctic regions, 2, 3, 21 ; in 



Arctic regions, 4. 

 Diatoma, 50. 



„ ehrenbergi (syn.), 50. 

 „ elongatum, 50. 

 „ „ var. ehrenbergi, 50. 



Diatomacese, 50. 

 Diatoms, in the Antarctic, 3, 6. 

 Dol'ichospermum (sect. Anabcena), 44. 

 Epiphytic flora on Cyanophyceous sheets, 3, 4. 

 Eucapsis, 5, 25, 26. 



