68 NEW YORK STATE MUSEUM 



Scirpus americanus Pers. 

 S. p u n g e n s Vahl 

 Chair-maker's rush 

 On the river shores. Frequent. Abundant at Apalachin. 

 August. 



Scirpus torreyi Olney 



Torrey's bulrush 

 Plentiful at Mutton hill pond in the outlet. August. 



Scirpus lacustris L. 

 Great bulrush. May rush 

 In shallow water along the river. Common. August, 



Scirpus atrovirens Muhl. 

 Dark green bulrush 

 Swamps and wet places. Common. July. 



Scirpus polyphyllus Vahl 

 Leafy bulrush 

 Wet woods and along streams. Frequent. August. 



Scirpus cyperinus (L.) Kunth 

 Eriophorum cyperinum L. 

 Wool grass 

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

 September. 



Scirpus cyperinus eriophorum (Michx.) Britton 

 Eriophorum cyperinum var. 1 a x u m 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.) Vahl 

 White beaked rush 

 On bogs at Mutton hill pond. Common. July. 



