Myxophyceae 31 



Utah. Floating near shore of lake and washed up on beach. Garfield 

 Beach, Great Salt Lake. July 1897. (Tilden). 



73- Aphanothece microscopica Naegeli. Gatt. Einz. Alg. 59. pi. i H. f. i. 

 1849. De Toni. Syll. Algar. 5:83. 1907. 



West and West. On some Freshwater Algae from the West Indies. 

 Journ. Linn. Soc. Bot. 30: 277. 1895. Collins, Holden and Setchell. Phyc. 

 Bor.-Am. Fasc. 12. no. 552. 1899. Saunders. The Algae. Harriman Alaska 

 Expedition. Proc. Wash. Acad. Sci. 3:397. 1901. Collins. Algae of the 

 Flume. Rhodora. 6:230. 1904. 



Plate IL fig. 12. 



Plant mass .25-2 mm. in diameter, gelatinous, colorless, globose or 

 oblong, later irregular in shape, floating; cells 4-4.5 mic. in diameter, 6-9 

 mic. long, oblong-cylindrical, single or in twos; cell contents blue-green. 



Greenland. (Richter, Boergesen). Alaska. Forming a slimy coating, 

 with Chroococcus, on a perpendicular cliff over which water was trick- 

 ling. Juneau. (Saunders). New Hampshire. On wall of the "Flume." 

 (Collins). Massachusetts. On flower pots. Botanic Garden. Cambridge. 

 February 1895. (Richards). West Indies. On damp wall of dam. Sharp's 

 River, St. Vincent; on trees, summit of Trois Pitons (4500 feet), Dominica. 

 (Elliott). 



74. Aphanothece castagnei (Brebisson) Rabenhorst. Fl. Eur. Algar. 2: 64. 



1865. De Toni. Syll. Algar. 5: 81. 1907. 



Setchell and Gardner. Algae of Northwestern America. Univ. Calif. 

 Pub. Bot. i: 180. 1903. 



Plate IL fig. 13. 



Plant mass gelatinous, amorphous, expanded, bluish-green, olive or 

 yellowish-brown; sheaths not usually visible; cells 2-3.5 mic. in diameter, 

 3-8 mic. in length, globose, oblong or polygonal, of various sizes, somewhat 

 crowded; cell contents pale blue. 



Alaska. In sulphur waters. (Farlow, Setchell). Washington, D. C. 

 (Farlow). Washington. In a jar of water in the laboratory. University 

 of Washington, Seattle. (Gardner). 



75. Aphanott^ce pallida (Kuetzing) Rabenhorst. Fl. Eur. Algar. 2: 64. 1865. 



De Toni. Syll. Algar. 5:83. 1907. 



Woile. Fresh- Water Algae U. S. 325. pi. 210. f. 7, 8. 1887. 



Plant mas^ 4-6 mm. in diameter, gelatinous, soft, somewhat transparent, 

 pale blue-greeh; cells 3-8 mic. in diameter, 5-24 mic. in length, oblong-ellip- 

 tical or cylindiSical, usually scattered; cell contents pale blue-green. 



Pennsylvania. On wet or marshy ground. (Wolle). Minnesota. 

 Keegan's Lake, Minneapolis. October 1907. (Hone). 



76. Aphanothece micrcspora (Meneghini) Rabenhorst. Fl. Eur. Algar. 2: 



64. 1865. De Toni. Syll. Algar. 5: 84. 1907. 

 Richter. Siisswasseralgen aus dem Umanakdistrikt. Bib. Bot. Heft. 42. 



