30 



GERLOFF, FITZGERALD, AND SKOOG 



Table i — Summary of results on isolation and culture of blue-green algae. 



Culture 

 No. 



Species 



Approx. Bacteria- 

 days for free 

 Date ?naximum cultures 

 isolated growth (X) 



1001 Phormidium minnesotense (Tild.) Drouet 

 1013 Nostoc muscorum Ag. 



1017 Plectonema Nostocorum Gom. 



1018 Calothrix parietina (Nag.) Thur. 



1019 Phormidium tenue Gom. 



1020 Coccochloris Peniocystis (Kiitz.) Drouet 



and Daily [Gloeothece linearis Nag.] 



1021 Diplocystis incerta (Lemm.) Drouet and 



Daily \Microcystis incerta Lemm.] 



1026 Lyngbya Birgei G. M. Smith 



1029 Anacystis marina (Hansg.) Drouet and 

 Daily [Aphanocapsa marina Hansg.] 



1032 Aphanizomenon jlos-aquae (L.) Ralfs 



1034 Lyiigbya versicolor Gom. 



1036 Diplocystis aeruginosa (Kiitz.) Trevis 

 [Microcystis aeruginosa Kiitz.] 



1038 Anabaena circinalis (Kiitz.) Rab. 



1041 Gloeocapsa membranina (Menegh.) 



Drouet and Daily 



1042 Gloeocapsa dimidiata (Kutz.) Drouet and 



Daily \Chroococcus turgidus 

 (Kiitz.) Nag.] 



1043 Phormidium autumnale Gom. 



1044 Arthrospira Jenneri Stiz. 



1046 Amphithrix janthina Born, and Flah. 



1047 Oscillatoria princeps Vauch. 



1048 Cylindrospermum lichenijorme Kiitz. 



1049 Nostoc commune Vauch. 



1051 Gloeocapsa alpicola (Lyngb.) Born. 



1052 Gloeotrichia echinulata (J. E. Smith) 



P. Richt. 



11-19^8 10 to 12 



