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1913] TRANSEAU—GLOEOTAENIUM 67 
cluded that it is most nearly related to Oocystis and Nephrocytium 
among the Protococcoideae. i 
WILLE (3) in 1892 included Gloeotaenium among the doubtful 
genera of the desmids in the Natiirlichen Pflanzenfamilien. 
TURNER (4) published WALLIcH’s notes and figures of the plant 
from Eastern India in 1892. West has expressed some doubt as 
to the validity of this determination. I do not believe, however, 
that there can be the slightest doubt about the first four of his 
figures representing the 2-celled form. The other figures are 
questionable. 
GUTWINSKI (5) figured the plant under the name of Gloeocystis 
cincta in his flora of Tarnopol, Austria. 
De Tont (6) corrected this name in 1895 and listed the localities 
in Austria, Italy, and East India in which Gloeotaenium had been 
found. 
SCHMIDLE (7) reported the plant from Australia in 1896, and 
West (8) figured it in 1904 from the Island of Trinidad. In The 
green algae of North America CoLutns (9) reprinted one of Stock- 
MAYER’S figures and placed the genus near Gloeocystis among the 
Chaetophoraceae. Its occurrence, at Charleston, Ill., was reported 
by the writer (10) in 1911. In the recently issued supplement to 
the Natiirlichen Pflanzenfamilien, WILLE places the genus next to 
Pleurococcus among the Pleurococcaceae.* 
Gloeotaenium has been collected at three stations near Charles- 
ton, Ill.: the second pond west of the tile factory; Hodgen’s pond; 
and the first pond west of the Big Four Railroad bridge across the 
Embarras River. All of these ponds are artificial. The first and 
second are a mile apart, and the third is about four miles east of the 
_ other two. Up to the present time the alga has been found only 
in collections from very definite areas in each of the ponds. In the 
tile factory pond it is the northeast corner, in Hodgen’s pond the 
northwest corner, and in the Big Four pond the middle of the east 
side. 
In the four years during which collections have been made from 
these habitats, no specimens have been recognized earlier than the 
‘Since this paper was written, Glocotaenium has been reported by A. B. Kiucu 
from Colpitts Bay, Ontario (Coxtrys, F. S., The green algae of North America, 
_ supplementary paper. Tufts Coll. Studies 3:95. 1912). 
