PRELIMINARY LIST OF THE ALGAE OF COLORADO 115 



U. zonata (Web. and Mohr) Kuetzing. [Collins, Green Alg. of N.A., p. 184.] 



Teller Lake, July 29, 1909, Robbins (51); ditch near Marshall, March 30, 1910, 

 Robbins (42); South Boulder Canyon, 2 miles above Tolland, June 15, 1909, Robbins (9). 

 Stichococcus bacillaris Naegeli. [Collins, Green Alg. of N.A., p. 190.] 



Boulder, on flowerpot, March 31, igio, Fenner. 

 Microspora amoena (Kuetzing) Rabenhorst. [Collins, Green Alg. of N.A., p. 193.] 



West Forest Lake, August 31, 1908, Ramaley (16), determined by Collins. 

 M. quadrata Hazen. [Collins, Green Alg. of N.A., p. 194.] 



Teller Lake, June 23, 1909, Robbins (8), determined by Collins. 



Family PRASIOLACEAE 



Schizogonium murale var. alpinum Farlow. [Collins, Green Alg. of N.A., p. 218.] 



James Peak, forming loose, floating tufts in small stream from melting snow bank, 



altitude 13,000 feet, June 28, 1910, Robbins (24). 



Prasiola mexicana J. G. Agardh. [Collins, Green Alg. of N.A., p. 218.] 



At foot of Arapahoe Glacier in cold running water, Henderson (13), determined by 



Collins; South Boulder Creek, near Tolland, June 24, 1910, Robbins. 



Family OEDOGONIACEAE 

 Oedogonium crispum (Hassall) Wittrock. [Collins, Green Alg. of N.A., p. 244.] 

 Pine Cliff, in running stream, July n, 1911, Brannaman (68). 



Family CHAETOPHORACEAE 



Chaetophora elegans (Roth) Agardh. [Collins, Green Alg. of N.A., p. 295.] 



Park Lake, near Tolland, attached to under side of stones along the shore; also on 

 erect sedge blades that are submersed, June 18, 1910, Robbins. 

 Stigeoclonium stagnatile (Hazen) Collins. [Collins, Green Alg. of N.A., p. 301.] 



Boulder, in watering-trough, February 7, 1911, Watkins (63). 

 S. tenue (Agardh) Rabenhorst. [Collins, Green Alg. of N.A., p. 300.] 



East Lake, near Tolland, June 13, 1909, Ramaley (38), determined by Collins; Park 

 Lake, near Tolland, July 18, 1911, Brannaman (71). 

 Draparnaldia acuta (Agardh) Kuetzing. [Collins, Green Alg. of N.A., p. 303.] 



Boulder Creek, near Boulder, January 29, 1910, Robbins (61); Corona, attached to 

 stones in running water, July 25, 1911, Brannaman (75). This species is common in cold 

 water streams, attached to stones at the bottom. 

 D. glomerata (Vaucher) Agardh. [Collins, Green Alg. of N.A., p. 303.] 



Park Lake, near Tolland, July 19, 1911, Brannaman (73). 

 D. plumosa (Vaucher) Agardh. [Collins, Green Alg. of N.A., p. 303.] 



Wet Mountain Valley in Swift Creek over 8,000 feet altitude, 1889, Cockerell. 

 Pleurococcus vulgaris Meneghini. [Collins, Green Alg. of N.A., p. 304.] 



South Boulder Canyon, 2 miles above Tolland, June 15, 1909, Robbins (9); East 

 Lake, near Tolland, June 19, 1909, Ramaley (19) ; Boulder Creek, near Boulder, March 6, 

 1910, Robbins (20). This species is common in Colorado but by no means as abundant 

 as in moister climates. 



