1 8 Minnesota Algae 



55. Gloeocapsa aeruginosa (Carmichael) Kuetzing. Tab. Phyc. i: pi. 21. f. 

 2. 184S-1849. De Toni. Syll. Algar. 5: 55. 1907. 



Plate I. fig. 19- 



WoUe. Fresh Water Algae. II. Bull. Torr. Bot. Club. 6: 137. 1877; 

 Fresh-Water Algae U. S. 331. pi. 210. f. 27, 28. 1887. Moebius. Ueber ein- 

 ige in Portorico gesammelte Siisswasser- und Luft-Algen. Hedwigia. 27:248. 

 1888. 



Plant mass crustaceous, grumose or cartilaginous-mucous, blue-green 

 or gray-green;' families 16-50 mic. in diameter; plants 4-8 mic. in diameter, 

 spherical; sheaths thick, colorless, indistinctly lamellose; outer lamellae 

 often sinuate, angular; cells 2-3 mic. in diameter; cell contents homogene- 

 ous, blue-green. 



Greenland. (Borgesen). New York. Niagara. (WoUe). West 



Indies. Forming a dark green layer on stone in cave. "El Convento", near 

 Penuelas, Porto Rico. (Sintenis). Porto Rico. (Benecke). 



36. Gloeocapsa gelatinosa Kuetzing. Phyc. Gen. 174. 1843. De Toni. Syll. 



Algar. 5:54. 1907. 



Plate I. fig. 20. 



WoUe. Fresh Water Algae. II. Bull. Torr. Bot. Club. 6: 137. i877- 

 West and West. A further contribution to the Freshwater Algae of the 

 West Indies. Journ. Linn. Soc. Bot. 34:289. 1898-1900. 



Plant mass lubricous, bullose, olive or green, inundated; plants 6.2-10 

 mic. in diameter, globose-oblong, associated in families about 25 mic. in 

 diameter; sheaths rather narrow, colorless, lamellose when old; lamellae 

 permanent; cells 2.5 mic. in diameter; cell contents homogeneous, blue- 

 green. 



United States. (WoUe). West Indies. On banks. Morne Micotrin, 

 Dominica. (Elliott). 



37. Gloeocapsa conglomerata Kuetzing. Tab. Phyc. i: 16. pi. 20. f. 8. 1845- 



1849. De Toni. Syll. Algar. 5:56. 1907. 



Plate I. fig. 21. 



Plant mass gelatinous, somewhat granular, expanded, dull olive-green; 

 plants 7-1 1 mic. in diameter, spherical, aggregated, associated in families 22- 

 45 mic. in diameter; sheaths thick, colorless, not at all or scarcely lamel- 

 lose; cells 3-6 mic. in diameter; cell contents blue-green or green, becoming 

 brownish. 



Colorado. On Cladophora. (Porter, Wolle). 



38. Gloeocapsa mellea Kuetzing. Tab. Phyc. i: pi. 23. f. V. 1845-1849. De 



Toni. Syll. Algar. 5:46. 1907. 



Wolle. Fresh Water Algae. II. Bull. Torr. Bot. Club. 6: 137. 1877. 



Plant mass soft, crustaceous, pale flesh-colored to yellowish; families 

 10-22 mic. in diameter; plants 2.5-5.5 mic. in diameter, spherical or angular, 

 usually arranged in globose or oblong families of two or four; sheaths 



