SPERMATOPHYTA. 23 



subterminalis Torr. In slow streams and in ponds. 



debilis Pursh. 



Southbridge. Mr. R. M. Harper, 

 americanus Pers. 



Brookfield. Mr. R. M. Harper. 

 Torreyi Olney. 



Lake Quinsigamond. Prof. G. E. Stone. 

 validus Vahl. Great Bulrush. In ponds and streams. 

 rubrotinctus Fernald. 



Hardwick. Mr. R. M. Harper, 

 sylvaticus L. In brooks. 



Mr. T. E. N. Eaton. 



atrovirens Muhl. In wet places, common, 



polyphyllus Vahl. 



Worcester. Mr. T. E. N. Eaton, 

 cyperinus (L.) Kunth. Wool Grass. 



In swamps, common, 

 cyperinus (L.) Kunth. var. condensatus Fernald. 



Douglas. Mr. R. M. Harper, 

 atrocinctus Fernald. 



Southbridge. Mr. R. M. Harper. 

 Eriophorum L. Cotton Grass. 

 caUitrix Cham. Hare's Tail. 



Worcester. Mr. George Coult. 

 opacum (Bjornstr.) Fernald. 



South Ashburnham. 



gracile Roth. In bogs, not rare, 



tenellum Nutt. 



Sturbridge. Mr. R. M. Harper, 

 viridi-carinatum (Engelm.) Fernald. 



In low meadows and swamps. 

 virginicum L. In low meadows and swamps, common. 



