152 



Many other plants are found in the lake, but not in quantities suffi- 

 cient to call for more than passing notice. Only a few plants of Pliilotria 

 were seen here, although it grows abundantly in l)ayous. VaUisneria gTOAVS 

 most plentifully just south of the mouth of Cheriy Creek, about Chicago 

 Hill pier, about 7<io feet south of this, near Clear Creek mouth, at the 

 western end of Wesi Bay. near the pier by the ice-houses, and off the 

 Assembly gromids. Bladderwort. ( triciilaria nilf/aris, fringes the edges of 

 the channel, but it is not particularly abundant here. It was really found 

 in much greater (luantities in the lake plain just beside the channel. The 



Fig. 7. 



plants in the lake are bright green, with empty bladders and no blossoms, 

 while those in the foul water of Willow Point bayou and elsewhere were 

 very different in appearance, the bladders black with contents, and the 

 stems bearing abundant flowers. 



Water-shield {Brusenia ijiiriiurern coA'ers rather thinly only one small 

 area at the south side of the lake. The plants are small and unthrifty, 

 and I have never seen them in blossom at this place. In a pond not far 

 away (Market-street pond) they Ijlossomed alnmdantly during the summer 

 of 1899. 



