THE GREEN ALGAE OF NORTH AMERICA 



105 



acuminatus, 42. 



v. minor, 43. 



v. tetradesmoides, 43. 

 acutiformis, 44. 

 alternans, 43. 

 arcuatus, 44. 



v. platjdisca, 44. 

 armatus, 44. 



v. Chodati, 45. 



v. subalternans, 45. 

 Bernardii, 42 

 bijuga, 43. 



v. alternans, 43. 



v. flexuosus, 43. 



v. irregularis, 44 

 bijugatus. 



v. flexuosus, 43. 



v. irregularis, 44. 

 brasiliensis, 44. 

 caudatus, 46. 



:. abundans 45. 

 denticulatus, 44. 



v. linearis, 44. 

 dimorphup, 42. 

 Hystrix, 45. 



v. armatus , 44. 

 incrassatulus, 43. 



v. mononac, 43. 

 longispina, 46. 

 longus, 46. 



v. brevispina. 46. 



v. ellipticus, 46. 



v. minutus, 46. 



v. Naegelii, 46. 

 Naegelii, 46. 

 obliquus, 42. 



v. dimorphus, 42. 

 opoliensis, 47. 

 quadricauda, 46. 



v. abundans, 45. 



v. asymmetricus, 45. 



v. ellipticus, 46. 



v. longispina, 46. 



v. maximus, 4f . 



v. parvus, 46. 



f. horridus, 46. 



v. quadrispina, 46. 



f. setosus, 46. 



v. Westii, 4T. 

 quadrispina, 46. 

 serratus, 45. 

 spicatits, 42. 

 Schroederia, 29. 

 Judayi, 29. 

 setigera, 29. 

 Selenastt iim. 

 acuminatum, 43. 



Selenosphaeriu m . 

 americanuin, 51. 

 hathoris, 51. 

 Sorastrum, 51. 

 americanum, 51. 

 spinulosum. 



v. bathoris, 51. 

 Sphaerozosma, 6. 

 Spirogyra. 

 areolata, 17. 

 Borgeana, 13. 

 catenaeformis. 



v. parvula, 12- 

 circumlineata, 13. 

 communis, 12. 

 condensata, 12. 

 crassa, 18. 



v. formoa', 13. 

 daedalea, 14. 

 decimina. 



v. submarina, 12. 

 diluta, 13, 14. 

 dubia. 



v. longiarticnlata, 13. 

 ellipsospora, 15. 



v. crassoidea, 15. 

 fallax, 13, U. 

 Farlowii, 16. 

 fluviatilis, 13. 

 iloridana, 16. 

 gigantica, 18. 

 Goetzii, 14. 

 Grevilleana, 13. 16. 

 hydrodictya, IT. 

 illinoisensis, 16. 

 inconstans, 17. 

 inflata, 13. 



v. foveolata, 13. 

 insignis. 

 , v. fallax, 17. 

 irregularis, 18. 

 Lagerheimii, 13. 

 longata, 12. 

 lutetiana, 13, 17. 

 micropunctnta, 16. 

 narcissana, 15. 

 nitida, 12. 14- 

 novae angliae, 15. 

 porticalis. 12. 



v. tenuispira, 13. 

 pratensis, 15. 

 propia, 15. 

 punctiformis 15. 

 rectangularis, 16. 

 reflexa, 16. 

 reticulata, 1?. 

 submarine, 12. 



