597 



46. C. criiscorri Shutthv. 



Occurring in two small patches west of Glencoe, in wet soil. 

 Mr. E. J. Hill informs me that many years ago he found a con- 

 siderable cjuantity of this species there. 



47. C. aurca Nutt. 



In swamp meadow, west of Glencoe; found sparingly. 



48. C. lanuginosa. Michx. 



In swamp meadow^ ; in some places, covering considerable 

 areas. 



49. C riparia W. Curtis 



Mostly in the swamp meadow ; abundant. 



50. C. lupulifoniiis Sartwell 



Observed west of Braeside, in the outer part of the reed 

 swamp. 



51. C. lupulina Muhl. 



In the swamp meadow ; seemingly rare. 



52. C. vesicaria L., var. monile Tuckerm. 



Mostly in the swamp meadow ; fairly common. 



Note. — Several other species of Carex, among them probably C. granularis, 

 were found, but because of their immature condition or complete lack of 

 flowers and fruit, positive determination could not be made. 



Araceae 



53. Acorns Calamus L. 



In the reed swamp; common. 



Lemnaceae 



54. Spirodda polyrhiza (L.) Schleid. 



Abundant in some places upon the surface of the water in 

 Skokie Stream. 



55. Lcnina trisulca L. 



In Skokie Stream west of Glencoe; found in 191 1 and 1912, 

 at only one place. 



Juncaccae 



56. Juncus tenuis Willd. 



In the meadow ; occasional. 



57. /. Dudleyi Wiegand 



Same range ; occasional. 



