TENNESSEE FLORA. 89 



J. aciiminatus Michx., and varieties O. S. June-July. 



J. repens Michx. Swaraps O. S. June-July. 



J. pelocarpns E. Meyer. Tullahoma. July. 



J. leptopaulis Torr. & Gray. Frequent in the cedar glades, 

 with Isotes Buttleri and Leavenworthias. May-June. 



J. bracliycarpus Engelm. Ponds along Cumberland river. 

 June- July. 



J. articulatus L. Cleveland, East Tenn. July, 



J. Canadensis J. Gay. East Tenn. September. 



CYPERACE^E. 

 Cyperus flavescens L. Ponds and ditches. July-September. 



C. diandrus Torr. With the former. August-September. 

 Var. casteneus Torr. With the preceding. September. 



C. aristatus Rottb. (C. inflexus Miihlb.). Glades and river 

 banks. July. 



C. Schweinitzii Torr. East Tenn. July-September. 



C. Luziilje Rottb., var. umbeUulatus N. L. Britton (C. vegetus 

 Pursh.). Damp argillaceous soils. July. 



C. virens Michx. West Tenn. Rare. August. 



Vu aciiminatus Torr. & Hooker. Cedar glades. Lavergne. 

 July. 



C. rotnndns L. Low grounds near Nashville; Horticultural 

 garden. Not frequent. July. 



C. esculentus L. (C. phymatodes Miihl.). Intrusive weed. 

 July-September. 



Var. aiigiistispicatiis N. L. Britton. Swamps along Cum- 

 berland river. July— September. 



C. stri^nsus L. (C Michauxlanus Schult.). Common in low, 

 damp gi'ound. 



Var. robiistior Kunth. River swamps. 



Var. capitatus Boekl. Sandy river banks. 



Var. coiiipositiis N. L. Britton. With the above. 



Var. eloii^atus N. L. Britton (C. Michauxianus, var. elon- 

 gatus Torr.). Banks and islands in Cumberland river. 



Var. py^mjeiis n. var. Only 3-4 inches high, resembling 

 C. Schweinitzii. McSpadden's bend, near Nashville. 



