ALGAL FLORA OF THE MISSOURI BOTANICAL GARDEN. 35 



SCIIIZOPHYCEAE. 

 CHROOCOCCACEAE. 



•cus limneticus var. sub-salsus Lemm. Appeared 



r in Nelumbium pool. 



aerium Kutzingianum Nag. In quiet water with 





larger algae. Fountain pond. 



aerium confertum W. and G. S. West. Nelum 



bium pools. Nymphea pond. 



major Wittr. This species 



ihpr. associated with Oscilla- 



A 



ous green scum on the surface of the water of the Lagoon. 



-.«, . — — - November, 



Anabaena and Oscillatoria had disappeared by that time. 

 This association has been observed by Mobius in the Botani- 

 cal Garden at Frankfort with the substitution of C. aerugi- 

 nosa for C. aeruginosa var. major. 



Merismopedia tenuissima Lemm. Nymphaea pool March 



to May. 



Merismopedia elegc 



goon. Sept. to Nov. 



Merismopedia conv 

 tain pond. Sept., Oct 



Waterfall stream. La- 



Arboretum stream. Foun- 



OSCILLATORIACEAE. 





Oscillatoria Agardhii Gomont. Lagoon on surface of wa- 

 ter associated with Clathrocystis aeruginosa var. major and 

 Anabaena Flos-aquae. End of Sept. to end of Oct. (See 



Clathrocystis.) 



Oscillatoria animalis Agardh. Mingled with Stigeo- 

 clonium tenue on the perpendicular surface of the first water- 

 fall at the outlet of the Fountain pond. April. Noted on 

 earth near Protosiphon in May. (E 3 ) 



Oscillatoria amphibia Ag. Arboretum pond among Oedo- 

 gonium. Some trichomes were noted 3.2/* wide, which is 



measurements. March 



Kather common 



