SOME NOTES ON CERTAIN IOWA ALG^. 
BY BRUCE FINK. 
Aside from the list by Bessey in 1884, the few algm men- 
tioned by Shimek (Proc. la. Acad. Sci. 4:80, 1896), and the 
article on diatoms by Myers (Proc. la. Acad. Sci. 6:47, 1898.) 
the present writer finds nothing in print regarding the 
algae of Iowa. Surely this condition is not due to the fact 
that algae have not been observed frequently enough, for 
the plants are so interesting that the student of aquatic 
fiora always stops to study them as thoroughly as time at 
hand will permit. 
The observations made by the present writer extend 
through thirteen years, eleven at Fayette and two at Grin- 
nell. At no time during all these years has he been able 
to command time for a thorough study of the algae of the 
two local fiorae, and the time has not arrived for an 
attempt at a catalogue of some one hundred species and 
varieties observed in the two localities. However, a num- 
ber of interesting forms have been observed, and some of 
the species have not been recorded for the state. Before 
proceeding further, however, thanks are due to two 
students for studies, under direction, which have aided 
materially in the work. ■ Miss Carrie Greene spent some 
time in the study of the fresh water algae in the vicinity of 
Fayette during the college year of 1901 and 1902, and Miss 
Louise Miles has aided in the work on the algae in the 
vicinity of Grinnell. 
As to the conditions about the two places, the one at 
Fayette has the advantage of the small stream known as 
the Volga river with its numerous springs, tributary creeks 
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