Tennessee Flora. 49 



C. virens Michx. Brownsville. August. 



C. rotundus L. C. Hydra Michx. Old horticultural gar- 

 den in North Nashville. July. 



C. esculentus L. C. phymatodes Miihl. Yellow nut grass. 

 A pest in cultivated grounds. O. S. August, September. 



C. esculentus angustispicatus Britt. A variety very com- 

 mon about Nashville. 



C. erythrorhizos Miihl. River swamps. O. S. August, 

 September. 



C. Hallei Torr. Reported from Tennessee in Illustrated 

 Flora. 



C. speciosus Wahl. C. Michauxianus Torr. River banks 

 and pools. Nashville. September. 



C. strigosus L. The most frequent species. O. S. August- 

 October. 



C. strigosus capitatus B(Pkl. 



C. strigosus compositus Britt. 



C. strigosus robustior Kunth. 



C. strigosus elongatus Britt. All these varieties are 'found 

 promiscuously in the same range. 



C. refractus Engelm. On dry, rocky uplands. Nashville. 

 August, September. 



C. retrofractus (L.) Torr. Hollow Rock, W. Tenn. Au- 

 gust, September. 



C. Lancastriensis Port. Dry uplands. Old Cemetery, at 

 Nashville. August, September. 



C. ovularis Torr inch var. robustus Boekl. and var. sphericus 

 Boekl. Frequent in the glades of M. Tenn. 



C. filiculmis Vahl. Dry uplands, vicinity of Nashville, and 

 O. S. June-Septem-ber. 



C. echinatus (Ell.) Wood. C. Baldwinii Torr. Knoxville. 

 A. Ruth. 



KYLLINGIA Rottb. 



Kyllingia pumila Michx. Miry places. O. S. July, Au- 

 gust. 



DULICHIUM L. C. Richard. 



Dulichium arundinaceum (L.) Britton. Swamps along 

 Cumberland and Tennessee Rivers. August-October. 



ELEOCHARIS R. Br. 



Eleocharis mutata (L.) R. & S. E. quadrangulata R. & S. 

 Bogs along Cumberland River. July-September. 



E. ovata (Roth.) R. & S. Bogs. O. S. July-September. 



E. Engelmanni Steud. E. ovata var. Engelmanni Britt. 

 Damp soil in the barrens. July. 



