Lake Maxinkuckee, Physical and Biological Survey 159 



branches. Its presence is so universal over the lake in shallow 

 water that details of distribution need not be given, except that it 

 grew best in a mixture of marl and sand, and was absent from very 

 mucky or peaty places and from gravel and pure sand, as along the 

 east shore. According to Dr. Robinson "this is a very polymorphic 

 form, several of our specimens representing the common American 

 form, a few being more robust and heavily encrusted, others un- 

 usually slender, and another form with very short whorls. Again, 

 one specimen was peculiar in appearing, through hypertrophy of 

 the secondary rows of cortex, to be triply corticated." 



2. CHARA FOLIOLOSA Muhlenberg & Willdenow 



On the shore of Lake Maxinkuckee on the west side by Win- 

 field's, and again extending from Long Point down to about 

 Farrar's, there occurs in shallow water hardly a foot deep, an 

 exceedingly handsome bushy Chara which bore fruit in such great 

 abundance that the whole plant, upon a close inspection, had a red- 

 dish appearance. On account of this peculiarity we named the 

 plant the "full-fruited Chara." Perhaps a better known scientific 

 name for this plant among collectors is Chara gymnopus A. Br. a 

 name applied because of the absence of cortication in the lower 

 node. According to Dr. Robinson, Braun's name is preoccupied by 

 the name given above. 



The full-fruited Chara is an annual ; it grows at a depth where 

 the water freezes to the bottom; and even if it attempted to per- 

 sist, it would be taken out by the ice. It usually disappears before 

 ice comes, however, probably having exhausted itself by fruiting. 



Various modifications or subspecies of this form, such as Chara 

 foUolosa macilenta, and another resembling Chara foliolosa con- 

 jugens, are to be found along the shores of Lost Lake. 



3. CHARA FRAGILIS Desv. 



This is the identification of a specimen obtained from Long 

 Point near Scovell's. We have no record of its distribution but it 

 does not appear to be abundant, and is usually dredged up with 

 various lake weeds. It bears a considerable resemblance to the 

 common carpet Chara of the lake, C. contraria, but is a more grace- 

 ful plant, having longer leaves and a more slender habit. 



4. CHARA VULGARIS Linnaus 



Represented in our collection by numerous examples. Found 

 growing in water from 2 to 6^ feet deep. Inasmuch as we were 

 unfamiliar with the various species of Chara at the time our col- 

 lections were made, we have no details of its distribution. 



