BEAL ON MICHIGAN FLORA. 57 



*558. C. Sartwellii Dewey. S. Mich., Winch. Cat.; Macomb Co.; Flint; Hubbardston; 

 Orion, O. A. Farwell; and northward. Th. 



*559. C. scabrata Schwein. Rough Sedge. Banks of streams. Flint; Grand Rapids, 

 Coleman Cat.; Hubbardston to Lake Superior, Whitney Cat. Infrequent. 



560. C. Schweinitzii Dew. Schweinitz's Sedge. Near Fraser's, Crawford Co., Prof. 

 L. H. Bailey. Only station known in State. 



561. C. scirpoidea Michx. Scirpus-like Sedge. Winch. Cat.; Drummond's Isle; 

 Keweenaw Co., O. A. Farwell. N. E. 



*562. C. scoparia Schk. Pointed Broom Sedge. Th. C. scoparia minor Boott. 

 Keweenaw Co., O. A. Farwell; Bay Co., G. M. Bradford. Low grounds. Common. 



563. C. setifolia (Dewey) Britton. Brittle-leaved Sedgw. Th. C. Eburnea Boott. 

 Hillside. South Haven on sand dunes and northward. Infrequent. 



*564. C. siccata Dewey. Dry-spiked Sedge. Barrens. Macomb Co.; Flint; Hub- 

 bardston; near Park Lake, Clinton Co.; northward to Lake Superior. Infrequent. 



*565. C. sparganioides Muhl. Burr-reed Sedge. Low, rich grounds, St. Clair Co., 

 C. K. Dodge. Infrequent. C. & S. 



*566. C. squarrosa L. Squarrose Sedge. S. Mich., Wright Cat.; Hubbardston; Lan- 

 sing, Bailey; Keweenaw Co., O. A. Farwell; Ann Arbor, C. A. Davis. Rare. 



567. C. sterilis Willd. Little Prickly Sedge. C. echinata microstachys Boeckl. 

 S. Mich., Winch. Cat.; Hubbardston; Flint; Macomb Co.; Orion and Keweenaw Co., 

 O. A. Farwell; and northward. Common. 



568. C. sterilis cephalantha Bailey. C. echinata cephalantha Bailey. Keweenaw 

 Co., O. A. Farwell; Manistee, F. P. Daniels. 



*569. C. stipata Muhl. Awl-fruited Sedge. Low grounds. Common. Th. 



*570. C. straminea Willd. Straw Sedge. Ann Arbor, Allmendinger Cat. ; Macomb Co. ; 

 Flint; Hubbardston; South Haven; northward to Keweenaw Co., 0. A. Farwell. Fre- 

 quent. Th. 



571. C. straminea ferruginea (A. Gray.) Bailey. Detroit, O. A. Farwell; Port 

 Huron, Algonac, C. K. Dodge; Bay Co., G. M. Bradford. 



*572. C. straminea mirabilis (Dewey) Tuck. C. mirabilis Dewey. Alma, Ann Arbor, 

 C. A. Davis; Hubbardston and northward. Infrequent. Th. 



*573. C. stricta Lam. Tussock Sedge. Low grounds. Common. Th. 



574. C. stricta angustata (Boot) Bailey. Less common than the species. Ann 

 Arbor, C. A. Davis; Hubbardston, Wheeler; Keweenaw Co., O. A. Farwell. 



575. C stricta x filiformis Bailey. Keweenaw Co., O. A. Farwell. 



576. C. sychnocephala Carey. Dense Long-beaked Sedge. Crystal, Montcalm Co. 

 Only station known in the State, C. F. Wheeler. S. 



*577. C. tenella Schk. Soft-leaved Sedge. Sphagnous swamps. Common. 

 *578. C. tenuiflora Wahl. Sparse-flowered Sedge. U. P., Whitney Cat.; Oscoda Co.; 

 Towar's swamp, near Lansing, Wheeler, 1890; Keweenaw Co., 0. A. Farwell. Th. 



579. C. tenuis Rudge. Slender -stalked Sedge. G. debilis Rudgei Bailey. Bear 

 Lake, Van Buren Co., E. J. Hill; shores of Barren Lake, Cass Co.; Gay lord; Alcona Co. 



580. C. tenuis interjecta (Bailey) Britton. G. debilis inter jecta Bailey. Grayling, 

 W. J. B. 



*581. C. teretiuscula Good. Lesser-panicled Sedge. Swamps. Common. Th. 



*582. C teretiuscula prairea (Dewey) Britton. G. teretiuscula ramosa Boott. Orion, 

 0. A. Farwell. Frequent. 



*583. C. tetanica Schkuhr. Woods Sedge. S. Mich., Winch. Cat.; Grand Ledge, C. F. 

 Wheeler; near Pine Lake, Ingham Co., L. H. Bailey; Macomb Co.; Flint, and northward. 



*584. C. tetanica Woodii Bailey. Central part of the State. Infrequent. 



*585. C. tribuloides Wahl. Blunt-broom Sedge. Th. 



*586. C. tribuloides Bebbii Bailey. Bay Co., G. M. Bradford; Detroit, O. A. Far- 

 well. Th. 



587. C. tribuloides moniliformis (Tuck.) Britton. C. tribuloides reducta Bailey. 

 Keweenaw Co., O. A. Farwell; Manistee, F. P. Daniels; Alma, C. A. Davis; Bay Co., 

 G. M. Bradford. 



588. C. tribuloides turbata Bailey. Swales. Keweenaw, O. A. Farwell. Frequent. 



589. C. triceps hirsuta Bailey. In an oak wood on the farm of Hon. N. B. Hayes, 

 in North Plains township, Ionia Co. Not known to occur elsewhere in the State. 



*590. C. trichocarpa Muhl. Hairy-fruited Sedge. S. Mich., Wright Cat.; Macomb 

 Co. Infrequent. C. & S. 



*591. C. trisperma Dewey. Keweenaw Co., 0. A. Farwell; Bay Co., G. M. Bradford. 

 *592. C. Tuckermani Dewey. Tuckerman's Sedge. Swamps. S. Mich., Wright Cat.; 



