68 NEW YORK STATE MUSEUM 



Scirpus americanus Pers. 



S. pun gens Yahl 



Chair-makei^s rush 



On the river shores. Frequent. Abundant at Apalachin. 

 August. 



Scirpus torreyi Olnej 



Torreifs hulrush 

 Plentiful at Mutton hill pond in the outlet. August. 



Scifpus lacustris L. 

 Great 'bulrush. May rush 

 In shallow water along the river. Common. August. 



Scirpus atrovirens Muhl. 

 Dark green hulrush 

 Swamps and wet places. Common. July. 



Scirpus polyphyllus Vahl 

 Leafy bulrush 

 Wet woods and along streams. Frequent. August. 



Scirpus cyperinus (L.) Kunth 

 E r i o p h o r u m c y p e r 1 n u m L. 

 IFooZ grass 

 In all swamps and other wet places. Abundant. August- 

 September. 



Scirpus cyperinus eriophorum (Miclix.) Britton 

 Eriophorum cyperinum var. laxum Gray 

 With the type. Common. Spikelets mostly peduncled. 



August- September. 



Eriophorum polystachyon L. 



Tall cotton grass 



Mutton hill pond. Rare. June- August. 



Eriophorum virginicum L. 

 Virginia cotton grass 

 Common in bogs. A form is found at Barton, which approaches 

 the var. album Gray. July- September. 



Rynchospora alba (L.) Yahl 

 White beaked rush 

 On bogs at Mutton hill pond. Common. July. 



