126 FLORA OF THE UPPER SUSQUEHANNA. 



C. retroflexa Muhl. Reflexed Sedge. Occasional in rich up- 

 land woods. (C. rosea, van retroflexa Torr. ) 



C. sparganioides Muhl. Plentiful m shady places, wet or dry. 



C. cephaloidea Dewey. Thin-leaved Sedge. Not common. 

 Found on dry hills. Reported by Graves and Lucy only. 



C. cephalophora Muhl. Oval-headed Sed(;e. Common on dry 

 knolls and in open woodlands. 



C. sterilis Willd. Little Prickly Sedge. Not uncommon in 

 swamps and bogs. The variety cephalantha is reported occa- 

 sional by Graves. {C. echinata, var. micros t achy s Boeckl.) 



C. canescens L. Silvery Sedge. Not uncommon m swamps 

 and the borders of ponds. 



C. trlsperma Dewey. Three-fruited Sedge. Infrequent. 

 Pound plentiful in a few small areas. Susquehanna, Gra7>es. 

 Pond Brook, Glide. Barton, Fenno. Elsewhere not reported. 



C. Deweyana Schwein. Dewey's Sedge. Plentiful in dry,' open 

 woods. 



C. bromoides Schk. Brome-like Sedge. Common in shaded 

 swamps and wet woodlands. ' 



C. tribuloides Wahl. Blunt Broom Sedge. Common in low- 

 grounds and swamps. Spikes usually clustered in a blunt, 

 heavy head. 



C. tribuloides Bebbii (Olney) Bailey. Occasional with the type, 

 (irai'es. Heads very dense. 



C. scoparia Schk. Poi.vted Broom Sed(;e. Very common m wet, 

 open places everywhere. Distinguished by its tawny, sharp- 

 pointed spikes. 



C. straminea Willd. Straw Sedge. Common in dry fields and 

 on banks throughout our range. One of our earliest species. 



C. straminea festucacea (Willd.) Tuckm. Beebe's flats; not 

 rare, Graves. (G. straminea, var. brevior Bailey.) 



