Chlorocloster pyreniger Pascher 1939, p. 459 

 PI. 95, Fig. 42 

 Cells irregularly spindle-shaped, straight or slightly lunate, some- 

 times sigmoid; chromatophores 2 (rarely 1) parietal plates without 

 pyrenoids; a red pigment-spot (oil body ?) visible; cells 6-8/a in 

 diameter, up to 25/a long. 



In Sphagnum bog pools. Mich. 



DIACHROS Pascher 1939, p. 370 



Cells solitary or in small clusters resulting from autospore libera- 

 tion, spherical, the wall thin but firm, usually reddish-brown, in 2 

 lightly adjoined sections which separate easily to liberate autospores 

 formed 2-4 in each mother cell; chromatophores 1-3; zoospores 

 unknown. 



Diachros simplex Pascher 1939, p. 372 

 PI. 95, Fig. 14 



Cells globose, solitary or in clusters, wall smooth; chromatophores 

 1-2 parietal plates; contents with 2 reddish-colored pigment-spots 

 ( oil bodies ? ) ; cells 10-12;li in diameter. 



In Sphagnum bog pools. Mich. 



GONIOCHLORIS Geitler 1928, p. 81 



Cells solitary or incidentally clustered in 2's and 4's, irregularly 

 or regularly triangular or several-angled, flattened, or twisted with 

 the angles in more than 1 plane, apices sometimes bluntly rounded, 

 sometimes with the wall thickened and extended into prominent 

 points or spines, wall thick and firm, often reddish or brown, sculp- 

 tured with regularly arranged series of pits which form serrations at 

 the cell margin ( possibly some species with smooth walls ) ; chrom- 

 atophores 2-5 parietal plates; oil bodies and leucosin, and 1 or 2 

 red pigment-spots usually present; reproduction by autospores. 



Goniochloris sculpta Geitler 1928, p. 81 

 PI. 95, Figs. 1^3 



Cells triangular in face view, compressed and narrowly ovate or 

 oblong-elliptic in side view and showing the juncture of the 2 wall 

 pieces in the long axis; outer membrane sculptured with rounded 

 or hexagonal depressions, which form serrations at the wall margins; 

 chromatophores 3-5 plate-like parietal bodies; cell contents with 1 

 or 2 reddish-colored oil bodies; cells about 30/^ in the long dimension, 

 in face view, 24/i, wide. 



In shallow water of acid bog. Mich. 



[351] 



