268 
The Ohio Naturalist. 
[Vol. V, No. 3, 
BRUSH LAKE ALGAE. 
Lumina C. Riddle. 
The following list of Algas was identified from material col- 
lected at Brush Lake, Champaign Co., O., during the Fall of 1902. 
In addition to the species included in the lists published by Dr. 
Kellerman in his ‘‘Proposed Algological Survey of Ohio,” Ohio 
Nat. 2:219-223; by A. J. Pieters in “Plants of Western Lake 
Erie;” Bull. U. S. Fish Comm. 1901; 57-79; Julia W. Snow, 
“Plankton Algae of Lake Erie;” Bull. U. S. Fish Comm. 1902; 
309--394; and in the writers’ list of ‘‘Algae from Sandusky Bay,” 
Ohio Nat. 3: 317, there were found seven new species for the 
state. These are indicated by the letter “n” after the name. 
The nomenclature is that used in DeToni Sylloge Algarum. 
RHODOBACTERIACE.E. 
Thiocystis violaceae Weinogradsky. n. 
BEGGIATOACE.E. 
Beggiatoa alba(Vaucher) Trevisson. 
CHROOCOCCACE.E. 
Chroococcus turgidus Kuetz. &■ Merisniopedia glauca (Ehrenb( Naeg. 
Nseg. n. Merisniopedia convoluta Breb. 
Gomphosphacria aponina Kuetz. 
OSCILLATORIACE.E. 
Oscillatoria froelichii Kg. Oscillatoria limosa Ag. 
Oscillatoria elegans Ag. Microcoleus lacustris (Rabenh) Far- 
low. n. 
NOSTOCACE/E. 
Nodularia spumigena Mertens. Anabiena flos-aquae Breb. 
TETRASPORACE/E. 
Botryococcus braunii Kuetz. 
CLADOPHORACE.E. 
Cladophora declinata tluitans( Kuetz) Hansg. 
VOLVOCACE/E. 
Pandorina moruni (Muell) Bory. Spondylomorum quaternarium 
Eiirenb. 
PLEUROCOCCACE.E. 
Rhapidium aciculare (A Br) Scenedesmusbijugatus (Turp) Kuetz. 
Rabenh “ quadricauda(Turp) Breb. 
Rhapidium convolutum (Corda) Tetracdron enorme(Naeg) Hansg. 
Rabenh. 
SORASTRACE.E. 
Coelastrum microporum Na?g. Cielastrum cambricum Archer. 
H YDRODICTYACE.^;. 
Pediastrum boryanum(Turp) Pediastrum tetras (Ehrenb) Ralfs. 
Menegh. 
