538 Wisconsin Academy of Sciences , Arts, and Letters . 
Genus GLOEOTHECE Nageli 1849. 
Gloeothece linearis NAGELI, Gatt. einz. Algen, (1849) 
p. 58, t. 1, fig. G2. 
Plankton; Muskallonge and Harris Lakes. Along shore; 
Soft Lake. 
Genus APHANOTHECE Nageli 1849. 
Aphanothece saxicola NAGELI, Gatt. einz. Algen, 
(1849) p. 60, t. 1, fig. H2. 
Along shore; Upper Nashotah and Sunday Lakes. 
Aphanothece Castagnei (DE BREBISSON) RABEN- 
HORST, Flora Eur. Algarum, 2 (1865) p. 64. Oncobrysa 
Castagnei , de Brebisson, in Kiitzing, Species Algarum, (1849) 
p. 214. Palmella Castagnei (de Brebisson) Kiitzing, Tabulae 
Phycol. 1 (1849) t. 11, fig. 4. 
Along shore; Helen (Eagle River), Laura, Muskallonge, 
Soft and Sunday Lakes. 
Aphanothece microscopica NAGELI, Gatt. einz. Al¬ 
gen, (1849) p. 59, t. 1, fig. HI. 
Along shore; Lake Kegonsa. 
Aphanothece prasina A. BRAUN, in Rabenhorst, Flora 
Eur. Algarum, 2 (1865) p. 65. Cooke, Brit. Freshw. Algae, 
(1882) p. 218, t. 88, figs. 3a-3b. 
Along shore; Nemahbin (Lower), Rose, Sunday and Wau- 
besa Lakes. 
Family CHAMAESIPHONACEAE 
Genus GHAMAESIPHON A. Braun und Grunow 1864. 
Chamaesiphon confervicola A. BRAUN, in Raben¬ 
horst, Flora Eur. Algarum, 2 (1865) p. 148. 
Along shores; Lake Mendota. 
Family CHROOCYSTACEAE 
Genus GLOEOCHAETE Lagerheim 1883. 
Gloeochaete Wittrockiana LAGERHEIM, in Ofvers. 
Kgl. Vet.-Ak. Forh. 40 , No. 2 (1883) p. 39, t. 1, figs. 3-4. 
Along shore; McKenna Lake. 
