596 



33- Blcocharis obtiisa (Willd.) Schultes 



In the swamp meadow and reed swamp ; scattered mostly in 

 open moist places. 



34. £. palustris (L.) R- & S. 



In grassy places of the meadow and swamp meadow; com- 

 mon. West of Winnetka this species was found growing in 

 Skokie Stream, where it was much stouter and attained an aver- 

 age height of .6 to .7 m. — a fact conforming wtih the observa- 

 tions of others (cf. Grav's Manual, Robinson and Fernald, '08, 

 p. 183). 



35. SfriwpJiyllits capillaris (L.) Britton 



Everywhere in the reed swamp and swamp meadow ; com- 

 mon. 



36. Scirpus validiis Vahl. 



In very wet parts of the reed swamp; common. 



37. S. flitz'iatilis (Torr.) Gray 



In the center of the reed swamp, where it frequently fringes 

 Skokie Stream in large patches. 



38. S. atrovircns Muhl. 



Scattered here and there, often abundantly, in outer parts of 

 the reed swamp and swamp meadow. 



39. S. lincatus Michx. 



Found with the last species, but only rarely. 



40. S. cypcrinns (L.) Kunth. 



In the swamp meadow ; rare. 



41. S. Briophonim Michx. 



In the outer reed swamp and in the swamp meadow ; common. 



42. Carcx scoparia Schkuhr. 



In the swamp meadow and moister parts of the meadow ; 

 common. 



43. C. cristata Schwein. 



Same range; common. 



44. C. vulpinoidea Michx. 



Same range ; common. 



45. C. stipata Muhl. 



vSame range ; common. 



