n6 



Bulletin No. 205 



[March, 



85 



Fig. 8.3. — P. leihergii, 

 culm 



pubescent on both surfaces, tho 

 sometimes only on the basal part; 

 ])anieles few-flowered, the length 

 about twice the width ; spikelets 

 3.7 to 4 mm. long, long pubescent. 

 Autumnal form not very different, 

 the culms usually leaning over, a 

 few branches from the middle and 

 lower nodes, the blades very little 

 reduced, usually concealing the 

 ]ianicles. 



This is another of the prairie 

 species. It is found thruout the 

 state. 



CHAMPAIGN CO. Champaign, Waite 

 in 1888 ; Champaign, Seymour, June, 

 1884. CHRISTIAN CO. Tajloi'ville, An- 

 drews, June, 1899. DU page co. Naper- 

 villc, Vmbach 1669. JO daviess ( o. War- 

 ren, Pepoon 12 and 729. knox co. 

 Without locality, F, H. Chase 1701. 

 LIVINGSTON CO. Emington, Wilcox, July, 

 1902. MACON CO. Decatur, Clokey, May, 

 1889. MARSHALL CO. Near Lawn Eidge, 

 F. E. Chase July, 1907. menard CO. 

 Without locality, Hall in 1861. peoria 

 CO. Peoria, McDonald, June, 1903. ST. 

 CLAIR CO. Mascoutah, Welsch. stark 

 CO. Wady Petra, F. H. Chase 461, 1466. 

 WILL CO. Joliet, Sleels 334. 



Panicum oligosanthes Schult. 

 (Fig. 87) 



P. pauciflorum, Patterson '76, 52; 

 Flagg '78, 284. P. oligosanthcs. Lap- 

 ham '57, 595; Hitchcock and Chase '10, 

 285. 



Vernal form with culms in small 

 tufts 1 to 2.5 feet tall, usually 

 ei'cct and finely pubescent ; nodes 

 bearded; sheaths shorter than the 

 lower internodes, sometimes longer 

 than the upper ones and covered 

 with soft pubescence ; ligule 1 to 2 

 mm. long ; blades 2.5 to 5.5 inches 

 long, 5 to 8 mm. wide, smooth ex- 

 cept for a few hairs on the upper 



