344 NATURAL HISTORY BULLETIN. 



24. C longirostris Torr. Schwein. Ann. Lye. X. Y., 1, 



71 (1824). 



Illus. Flora, 1, 319, tig. 752: Bailey in Gray's Man.. 6th ed., 603: Arthur, 

 Fl. Iowa, 34; MacMillan, Metas. Minn. Val., 121; Bessey, Coin. Fl. 

 Iowa, 124: Brendel. Fl. Peoriana, 63; Bruhin, Fl. Wis., 280: Webber. 

 Fl. Neb., 98: Rydberg, Fl. Bl. Hills, S. D., 528. 



Common in woods; a very distinct and graceful species. 



Charles City. June, 1875, Arthur ; Clinton count}-. 1878. 

 Butler; Emmet county, various collections, C ratty ; Fayette 

 count} - . 1895, Fink: Ames, Hitchcock; Jasper county, May, 

 1886, Nor r is: Big Rock, Scott county, Barnes & Miller. 



25. C. grisea Wa/il. K. Acad. Handl,, xxiv. 154 (1803). 



Illus. Flora 1, 321, tig. 759; Gray's Man., 6th ed., 605; Arthur, Fl, Iowa, 

 34; Hitchcock, PI. Ames, 525; MacMillan, Metas. Minn. Val., 120; 

 Tracy, Fl. Mo., 93; Bessey, Cont. Fl. Iowa, 124; Brendel, Fl. Peoriana. 

 62: Webber, Fl. Neb., 98. 



Rich woods, probably throughout the state. 



Ames and Iowa City, Hitchcock ; Charles City. 1885, 

 Arthur; Lynnville, Jasper county, May, 1886, Norn's; bank 

 of Wapsipinicon, Scott county, 1895, Barnes & Miller. 



26. C. amphibola Stead. Syn. PI. Cyp., 234 (1855). PI. III. 



C. grisea var. angustifolia Boott, 111., 34 (1S58). 

 Illus. Flora, 1, 321, fig. 760; Bailey in Gray's Man., 6th ed., 605. 



Northern and eastern portions of the state; rather rare in 

 moist soil, especially in woods along streams. Leaves 1 to 2 

 lines wide, being much narrower than those of the preced- 

 ing species which it much resembles. Not before reported 

 from Iowa. 



Emmet county, rare, 1880, Cratty; Scott county. 1895, 

 frequent, Barnes cf- Miller. 



27. C. granulakis Muhl. Willd. Sp. PL, iv, 279 (1805). 



Illus. Flora, 1,322, fig. 763; Gray's Man., 6th ed., 605; Arthur, Cont. Fl. 

 Iowa, iv; MacMillan, Metas. Minn. Val., 120; Tracy, Fl. Mo., 93; 

 Brendel, Fl. Peoriana, 62; Wheeler, Fl. Milwaukee Co., Wis. 187; Bot. 

 •Surv. Neb., iv, 45. 



Central and southeastern; not common. 



