THE IOWA SEDGES. 310 



A very rare sedge occurring in dry ground. 

 Grinnell, 1876, name of collector unknown, a single plant 

 only in the I. A. C. herbarium. 



39. C. PEDUNCULATA Mukl. Willd. Sp. PI., IV, 222 (1805.) 



Illus. Flora. 1.333. fig- 793 ^ Bailey in Gray's Man., 6th ed. ( 610; Arthur, 

 Cont. Fl. Iowa, m; MacMillan, Metas. Minn. Val., 117. Brendel. Fl. 

 Peoriana. SS: Hale, Add. Fl. Wis.. 5: Fink, Proc. Iowa Acad. Sci., iv. 



105. 



Dry ground in woods; rather rare in the southern and east- 

 ern portions of the state. 



Clinton county. April 18. 1878. Butler; Fayette county, 

 1895, Fink. 



40. C. pedicellata (Dew.) Britton, Mem. Ton*. Club, v, 



(1894). 



C. communis Bailey, Mem. Torr. Club, 1, 41 (18S9). 

 C. varia var. pedicellate: Dew. Am. Jour. Sci., xi, 162 (1S26). 

 C. varia Dew. Am. Jour. Sci., xi, 102 (1S26) not Muhl. (1S05). 

 Illus. Flora, 1, 333, fig. 794; Gray's Man., 6th ed., 612: Upham, Fl. Minn., 

 157; Brendel, Fl. Peoriana. S7; Tracy, Fl. Mo., 95. 



Rare in dry soil, eastern portion of the state; not before re- 

 ported from Iowa. This species much resembles C. flennsyl- 

 vanica Lam. but unlike the latter is not stoloniferous, the fer- 

 tile spikes loosely flowered, and the whole plant taller and less 

 strict in habit. This is the C. varia of Gray's Manual, 5th 

 ed., p. 692, and of most catalogues published previous to 

 1890. The true C. varia Muhl. (C\ emmonsii Dew.) ought 

 to be found within our limits. 



Wild Cat Den, Muscatine county, 1893, and Scott county, 

 June, 1897, Barnes & Miller : Muscatine, 1S97, Ball. 



41. C. pennsylvanica Lam. Encyc. in, 388 (1789). 



Illus. Flora, 1, 333, fig. 795; Bailey in Gray's Man., 6th ed., 612; Arthur, Fl. 

 Iowa. 34; MacMillan, Metas. Minn. Val., 117; Hitchcock, PI. Ames, 

 525; Tracy, Fl. Mo., 94; Brendel, Fl. Peoriana, 62; Wheeler, Fl. Mil- 

 waukee County, Wis.. 1S7: Rydberg, Fl. Sand Hills, Neb., 185; Wil- 

 liams, Grass and For. PI. Daks.. 43. 



High prairies and woods; the most common and the earliest 

 of our sedges, the flowers appearing in April, the fruit a 



