628 Wisconsin Academy of Sciences, Arts, and Letters. 
lamellated gelatinous envelope but the star shaped chloroplast 
is so characteristic of Asterococcus that'I believe it belongs in 
the genus. The cells are also much smaller than those of A. 
superhus. 
III. Dummy (rr)^ Horseshoe (ss), Lac Court Oreilles (ss), Owen (ce), 
Eeserve (r)^ Shell (ce). 
Family DICTYOSPHAEEIACEAE 
Genus DICTYOSPHAERIUM Nageli 1849. 
Dictyosphaerium pulchellum Wood. 
Smithsonian Cont. to Knowl. 19: No. 241 1 84. pi. 10, /. 4. 1872. (Botryo- 
cocGUS pulcJiellus on plate). 
II. Center (r). Eagle (rr), Elizabeth (rrr). 
III. Amicoy (bs), Bear (ss), Chetek (ss), Duck (cc), Dummy (sss), Granite 
(ss), Grindstone (rrr), Horseshoe (ss), Lac Court Oreilles (ss), 
Little Eice (sss), Owen (rrr), Pokegama (c), Prairie (c), Ee¬ 
serve (rr), Eice (ss), Shell (cc), Vermilion (r), Whitefish (rr). 
Genus DIMORPHOCOCCUS A. Br. 1849. 
Dimorphococcus lunatus a. Br. 
Alg. unicell. 44. 1855: Eabenhorst, Flora Eur. Algarum 3: 36. 6, /. a-e 
1868. 
I, Pine (rrr). 
Ill, Bear (rr), Beaverdam (rr), Devils (r), Horseshoe (rr), Shell (rrr). 
Genus WE STELLA de Wildemann 1897. 
Westella botryoides (W. West) de Wildemann. 
Bull. Herb. Boiss. 5: 532. 1897. 
Tetracoccus 'botryoides W, West, Jour. Eoy. llicr. Soc. 1892: 735 pi. 10, 
■figs. 43-48. 
II, Mill (rrr). 
III, Horseshoe (rr). 
var. major var. nov. 
Cells 8-13 ft in diam. 
The size of the cells in this variety is much larger than > that 
of the typical form. The cells are generally in groups of four 
and the old mother cell wall that holds them together is incon¬ 
spicuous. 
III. Whitefish (rr). 
