PRELIMINARY LIST OF THE ALGAE OF COLORADO 113 



Haematococcus pluvialis Flotow. [Collins, Green Alg. of N.A., p. 130.] 



"From dry 'water basin' in sandstone," Boulder, July 19, 1904, E. Bethel. 



Family VOLVOCACEAE 

 Volvox aureus Ehrenberg. [Collins, Green Alg. of N.A., p. 133.] 



East Lake, near Tolland, June 5, 1909, Ramaley (43); August 31, 1908, Dodds 

 (D371); July 4. 1908, Dodds (D238); Teller Lake, July 4, 1908, Dodds (D242). 

 V. globator Linn. [Collins, Green Alg. of N.A., p. 135.] 



Teller Lake, July 4, 1908, Dodds (55); Aspen Lake, August 21, 1908, Dodds (D343). 



Family TETRASPORACEAE 

 Tetraspora cylindrica (Wahl.) Agardh. [Collins, Green Alg. of N.A., p. 138.] 



Tolland, July 22, 1909, Ramaley (39). 

 T. gelatinosa (Vaucher) Desv. [Collins, Green Alg. of N.A., p. 139.] 



Duck Lake, August 18, 1908, Dodds (D305). 

 T. lubrica (Roth) Agardh. [Collins, Green Alg. of N.A., p. 139.] 



South Boulder Canyon, 2 miles above Tolland, August 30, 1908, Ramaley (53); June 

 15, 1909, Robbins (9); Mammoth Gulch, July 18, 1911, Brannaman (70). 



Order PROTOCOCCALES 



Family HALOSPHAERACEAE 



Eremosphaera viridis var. major Moore. [Collins, Green Alg. of N.A., p. 155] 

 Tolland, July 11, 1911, Brannaman (67). 



Family SCENEDESMACEAE 

 Rhaphidium braunii Naegeli. [Collins, Green Alg. of N.A., p. 158.] 



Teller Lake, June 23, 1909, Robbins (8). 

 R. falcatum (Corda) Cooke. [Collins, Green Alg. of N.A., p. 157.] 



Gaynor Lake, September 15, 1907, Ramaley (21); Teller Lake, June 23, 1909, 

 Ramaley (22). 

 R. setigerum (Schroder) W. & G. [Collins, Green Alg. of N.A., p. 158.] 



Gaynor Lake, September 15, 1907, Ramaley (21). 

 Oocystis solitaria Wittrock. [Collins, Green Alg. of N.A., p. 160.] 



Redrock Lake, August 18, 1908, Ramaley (1). 

 Nephrocytium naegelii Grunow. [Collins, Green Alg. of N.A., p. 161.] 



Corona Lake, July 25, 1911, Brannaman (78). 

 Scenedesmus bijuga (Turp.) Wittrock. [Collins, Green Alg. of N.A., p. 168.] 



University Lake, Boulder, June 9, 1908, Dodds (D213); Redrock Lake, August 18, 

 1908, Ramaley (1). 

 S. bijuga var. alterans (Reinsch) Hansgirg. [Collins, Green Alg. of N.A., p. 168.] 



Hiram Prince Lake, July n, 1908, Dodds (D252). 

 S. obliquus (Turp.) Kuetzing. [Collins, Green Alg. of N.A., p. 168.] 



University Lake, Boulder, July 6, 1908, Dodds (D248); Duck Lake, July 18, 190S, 

 Dodds (D27J). 



