DIVISION EIGHT — SCIENCE. 609 



I 



SPUMARIA Pers. 



S. ALBA (Ball.) DC. On living willow stems. A. S. February — October. 



DIACHEA Fries. 



D. LEUCOPODA (Bull.) Rost. On dead and living leaves. Com. Januarj- — April 



BADHAMIA Berk. 



B. HYALIN'.A Berk. On decaying wood in L. R. C. February — April. 



FULIGO Hall. 



F. SEPTIC.A (Link.) Gmel. On decaying wood. Frequent. February — April. 



PHYSARUM Pers. 



P. CINEREUM (Batsch.) Pers. On small living plants. January — March. 



CLASS II. SCHIZOPHYCE.^. Fission-Plants. 

 Order CystiphoriC. One celled bltce-green Algae. 



CHROOCOCCUS Naeg. 



C. COHa-:RENS (Breb. i Naeg. Common in stagnant water. 

 MERISMOPEDIA Mey. 



M. GLAUC.A (Ehrb.) Naeg. In watering-trough. 



Order Nematogenoe. Filamcjitotis bltie-green Algae, Bacteria, etc. 



NOSTOC Vauch. 



N. MCSCORi'M Ag. Frequent among moss. January — April. 



N. PRUFIFORME (Rotli.) Ag. Common in running water. 



N. RUPESTRE Kuetz. Among moss on moist banks. 



N. SPHAERICUM Vauch. On wet soil. January — April. 

 ANABAENA Bory. 



A. STAGNALis Kuetz. In moist banks. June — October. 

 OSCILLARIA Bosc. 



O. ANTLiARiA Juerg. In reservoir. 

 O. BREVis Kuetz. On wet soil. 

 O. MAJOR Vauch. In pond at Oak Knoll, A. S. 

 O. TENERRIMA Kuetz. In stagnant water in Arroj-o Seco. 

 O. TENUIS Ag. Common. In water and on wet soil. 

 LEPTOTHRIX Kuetz. 



L. CAESPiTOSA Kuetz. In watering-trough. 



CVLINDROSPERMUM Kuetz 



C. COMATUM Wood. Ill stagnant water in Arroyo Seco. 



O. FLEXUOSUM (Ag. ) Rab. Among moss on moist banks. 



O. MACROSPERMUM Kuetz. In stagnant water in Arroyo Seco. 

 LYNGBYA Ag. & Thur. 



L. OCHRACEA (Dillj Thur. On a moist bank. 

 TOLYPOTHRIX Kuetz. 



T. DISTORTA (Muell.) Kuetz. Rubio Canj^on — on rocks under running water. 

 MASTIGONEMA (Fisher) Kirch. 



M. AERUGiNEUM (Kuetz. ) Kirch. Among damp moss. 



M. FERTILE Wood. In reservoir. 

 HAPALOSIPHON Naeg. 



H. BRAUNii Kuetz. In aquarium in laboratory, 

 BEGGIATOA Trevisan. 



B. ALBA ( Vauch. j Trev. Frequent in stagnant water. 

 MICROCOCCUS Cohn. 



M. CREPUSCULUM (Ehrb.) Cohn. In decaying fish. 

 ASCOCOCCUS Zopf. 



A. BiLROTHii Stern. In putrid vegetable infusion. 

 BACILLUS Cohn. 



B. ACETi (Kuetz ) Cohn. In vinegar. 



B. ACIDI LACTici Hueppe. In sour milk. 



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