PLANTS OF IOWA 141 



1776. E. ovata, (Roth.) R. & S. Ovoid Spike-rush. 

 In mud and wet sand. 



1777. E. palustris, (L.) R. & S. Creeping Spike-rush. 

 Common in low ground. 



1778. E. palustris glaucescens, (Willd.) A- Gray. 

 Low wet ground. 



1779. E. acicularis, (L.) R. & S. Needle Spike-rush. 

 Common in wet ground. 



1780. E. wolfii, A. Gray. Wolf's Spike-rush. 

 Low ground, not common. 



1781. #. intermedia, (Muhl.) Schultes. Matted Spike-rush. 

 Not common. 



STENOPHYLLUS, Raf . 



1782. 8. capillaris, (L.) Britton. Hair-like Stenophyllus. 

 Sandy soil, not common. 



FIMBRISTYLIS, Vahl. 



1783. F. autumnalis, (L.) R. & S. Slender Fimbristylis. 

 In frequent. 



SCIRPUS, L. 



1784. 8. lialli, A. Gray. Hall's Club-rush. 

 In wet soil; infrequent. 



1785. 8. americanus, Pers. Three-square Rush. 

 Infrequent. 



1786. 8. lacustris, L. Great Bulrush. 

 Common in wet places. 



1787. S. fluviatillis, (Torr.) A. Gray. River Bulrush. 

 In shallow water, common. 



1788. 8. atrovirens, Muhl. Dark Green Bulrush. 

 Common in wet places. 



1789. 8. lineatus, Michx. Reddish Bulrush. 

 Not common. 



1790. 8. cyperinus, (L.) Kunth. Wool-grass. 

 Infrequent. 



ERIOPHORUM, L. 



1791. E. polystachyon, L. Tall Cotton-grass. 

 Boggy soil, infrequent. 



