162 A CATALOG OF ILLINOIS ALGAE 



*Tilden, J. 1910. Minnesota algae, I : the Myxophyceae of North America 

 and adjacent regions including Central America, Greenland, Bermuda, 

 the West Indies and Hawaii, pp. 1-319. pis. 1-20. Minneapolis, Minn. 



*Transeau, E. N. 1912. The occurrence of the rare alga, Gloeotaenium, in 

 Illinois. Trans. 111. State Acad. Sci. 4: 143. 



* . 1913A. The life-history of Gloeotaenium. Bot. Gaz. 55: 66-73. 



pi. 3. figs. 1-24. 



* . 1913B. Annotated list of the algae of eastern Illinois. Trans. 111. 



State Acad. Sci. 6: 69-89. 



* . 1913C. The periodicity of algae in Illinois. Trans. Amer. Micr. 



Soc. 32: 31-40. figs. 1-8. 

 . 1914. New species of green algae. Amer. Jour. Bot. 1: 289-301. 



pis. 25-29. 



. 1915. Notes on the Zygnemales. Ohio Jour. Sci. 16: 17-31. 



. 1916. The periodicity of freshwater algae. Amer. Jour. Bot. 3: 



121-133. figs. 1-3. 

 — . 1917. The algae of Michigan. Ohio Jour. Sci. 17: 217-236. 



. 1925. The genus Debarya. 7&t(/. 25.- 193-201. pis. 1-2. figs. 1-44. 



. 1926. The genus Mougeotia. Ibid. 26: 311-331. pis. 1-7. 



— . 1933. The genus Zygogonium. Ibid. 33: 156-162. pis. 1-2. figs. 



1-37. 



. 1934. Notes on Zygnemataceae. Ibid. 34: 420. 



— . 1934. Key to the species of Zygnematales. MSS. 



. 1938. Notes on Zygnemataceae. Amer. Jour. Bot. 25: 524-528. 



figs. 1-19. 

 , and Tififany, L. H. 1919. New Oedogoniaceae. Ohio Jour. Sci. 



19: 240-243. pi. 14. figs. a-i. 



et al. 1934. New species of Zygnemataceae. Trans. Amer. Micr. 



Soc. 53: 208-230. pis. 17-22. figs. 1-69. 

 Walton, L. B. 1915. A review of the described species of the order 



Euglenoidina Bloch. Class Flagellata (Protozoa) with particular refer- 

 ence to those found in the city water supplies and in other localities of 



Ohio. Ohio Biol. Surv. 19: 343-459. pis. 12-26. 

 ♦Welch, W. B. 1942. A study of the phytoplankton of Crab Orchard 



Lake. Trans. 111. State Acad. Sci. 35: 81-82. figs. 1-4. 

 * Wesley, O. C. 1928. Asexual reproduction in Coleochaete. Bot. Gaz. 86: 



1-30. pis. 1-2. figs. 1-75. 

 West, G. S. and Fritsch, F. E. 1927. A treatise of the British freshwater 



algae, pp. 1-534. figs. 1-207. Cambridge. 

 West, W., and West, G. S. 1904-1912. A monograph of the British Des- 



midiaceae. Vols. I-IV. Ray Society, London. 

 , , and Carter, N. 1923. A monograph of the British Des- 



midiaceae. Vol. V. Ray Society, London. 

 nVilliams, E., et al. 1931. Increase of sugar utilization in Spirogyra by 



means of commercial fertilizers. Bot. Gaz. 92: 321-325. 

 Wolle, F. A. 1887. Freshwater algae of the United States. 1: 5-364; 2: 



pis. 54-211. Bethlehem, Pa. 

 . 1892. Desmids of the United States and list of American Pedi- 



astrums. pp. 5-182. pis. 1-64. Bethlehem, Pa. 



