THE IOWA SEDGES. 36" 



me/: Fort Dodge, July 5. 1897. Shimek; Missouri Valley, June 

 21. 1S97. a form approaching the next species. Pammel. 



A form collected by Prof. Hitchcock at Ames is labeled 

 "var. brezior. approaching var. alata" bv Prof. L. H. Bailer. 

 Similar forms were collected at Charles City bv Dr. Arthur, 

 and at Eldridge. Scott county, June. 1S97. bv Messrs. Barnes 

 & Miller. This latter plant is the C. straminea var. ferruginea 

 Bailev. Bull. Torr. Club. xx„ 421 1 1893 . 



76. C alata Torr. Ann. Lvc. X. Y.. in.. 396 (1826). 



C. straminea var. alata Bailey. Cat. Car . : v r_ 

 Illus. Flora, 1., 359. fig. S72 : Gray's Man., 6th ed. 622: Hitchcock. PI. Ames, 

 525: Higlev & Raddin, Fl. Cook Co., Ills.. : 



Low ground, rare within our limits. The specimens have 

 the perigynia slightly narrower, the beak a little 'longer than 

 in the eastern plant. 



Ames. Hitchcock: a specimen in the I. A. C. herbarium 

 labelled •• Iowa. June 23. 1S71. Bessey :" Grinnell, June, 1886, 

 an intermediate form which I refer here. Norris. 



77. C. bicknei.lii Britton. Illus. Flora. 1.. 360. fig. S74 



(1896). 



traminea var. crawii Boott, 111. Car. 121 (1862 . not C. craiuli Dew. 

 (1S46), which is an accepted species. 



Illus. Flora. 1. c. : Bailey in Bull. Torr. Bot. Club., xx., 421 ; Arthur. Flora 

 Iowa, 34. no. SSi ; Rydberg. Fl. Bl. Hills, S. D., 527. 



Rare and uncharacteristic with us. The broadlv winged 

 perigynia shell off very easily when mature. Usuallv but 

 few plants are found in a place, and those very looselv tufted. 



Emmet county. 1S7S, Crattx ; Johnson countv. 1S94. Shimek. 

 and Ames, June 16. 1S77. Arthur. The two latter I refer 

 here with some hesitation. Keokuk. June 1. 1S97. a form 

 with the beak one-half the length of the bodv of the peri- 

 gynium. Shimek. 



7S. C. svchxocephala Carey. Sill. Jour., ser. 2. iv., 24 



(1847). PI. IX. 



Illus. Flora, 1., 360, fig. S75: Gray's Man., 6th ed.. 622: MacMiUan, Metas. 

 Minn. Val., 106: Bruhin. Zwei, Xach. Fl. Wis., 643: Beal & Wheeler, 

 Fl. Mich, 157. 



