1922] Hylander, — The DesmiJs of Connecticut (Concluded) 241 



D. cylindricum Grev. Scottish Cryptog. Flor. 6: 38. pi. 293. 

 1827. Bridgeport (Holden, see 1, No. 1262), New Haven (a) New- 

 town, Middletown (Conn, see 2, p. 65). 



D. Swartzii Ag. Syst. Alg. 9. 1824. Bethlehem, Madison, Middle- 

 town (Conn, see 2, p. 65), Morris, New Haven (a), Plymouth. 



GYMNOZYGA Ehrenb. 



G. moniliformis Ehrenb. Berlin Monatz. 212. 1840. Bethlehem, 

 Killingworth, Middlebury, Middletown (Conn, see 2, p. 65), Monroe 

 (a), Newtown. 



This list includes 266 species and varieties, of which 125 are new 

 to Connecticut and 22 new to North America. 



IV. Literature Cited. 



1. Collins, F. S., Holden, I., and Setchell, W. A. Phycotheca 



Boreali-Americana. Maiden, 1905-1919. 



2. Conn, H. W., & Webster, L. W. A preliminary report on the 



algae of the fresh waters of Connecticut. Conn. Geol. & Nat. 

 Hist. Surv. Bull. 10. Hartford, 1908. 



3. Cushman, J. A. New England desmids of the sub-family Sac- 



codermae. Bull. Torrey Club 33: 343-351. 1906. 



4. The New England species of Closterium. Bull. 



Torrey Club 35: 109-133. 1908. 



5. Johnson, L. N. Some new and rare desmids of the United 



States— I. Bull. Torrey Club 21: 285-291. pi. 211. 1894. 



6. Some new and rare desmids of the United States, 



—II. Bull. Torrey Club 22: 289-298. pi. 239, 2Ifi. 1895. 



7. West, W. & G. S. On some desmids of the United States. Jour. 



Linn. Soc. Bot. 33:279-322. pi. 16-18. 1898. 



8. Wolle, F. Desmids of the United States and list of American 



pediastrums. Bethlehem, Pennsylvania, 1884. 



