64 



GRASSES OF IOWA. 



Muscatine Island, and occurs in isolated places as far north as LaCrosse 

 Count), Wisconsin, and Houston County, Minnesota. 



DISTRIBUTION. 



Iowa. Scott and Muscatine Counties (Haines and Miller) ; Mus- 

 catine, 1237 (Reppert); Columbus Junction, 1506 (Pammel). 



North America. In sandy soil from South Carolina (A. H. Cur- 

 tiss), Georgia, Florida; west to Minnesota, Iowa, Missouri (Carson 

 Station, Eggert), Kansas and Texas. 



10. PANICUM MILIACEUM. 

 Punicum miliaceum L. Sp. PI. 58. 1753. Beal. Grasses of N. A. 2: 

 125. 1893. Vasey Contr. U. S. Nat. Herb 3: 34. Nash in Briton and 

 Bdwq 111. PI. 1: 123 f 272. 1S96. Scribner and Merrill. Rhodora 3: 106. 



DESCRIPTION. 

 Millet. An annual 

 with erect or decumbent 

 culms, rather stout 1 

 foot (2] dm.) tall, gla- 

 brous or hirsute. Sheaths 

 papillose-hirsute, leaves 

 5 to 10 inches (10-20 

 cm.) long, \ to 1 inch 

 (5-2 cm.) wide, more or 

 less pubescent; panicle 

 rather dense, 4 to 10 

 inches (8-20 cm.) long; 

 branches erect or ascend- 

 ing; spikelets 2 to 2\ 

 lines (4-5 mm.) long, 

 acuminate ; first scale 

 about two-thirds as long 

 as the spikelet, acumi- 

 nate, five to seven- 

 nerved ; second scale 2 

 to 2\ lines (4-5 mm.) 

 long, acuminate, thir- 

 teen-nerved somewhat 

 exceeding the seven to 

 thirteen nerved, acumi- 

 nate third one, which 

 subtends an empty palet ; 

 fourth scale shorter than 

 the third, becoming in- 



Fig. 45. Panicum ■ miliaceum.— a, Spikelet, showing , T 



first and third glumes; b, spikelet, showing dorsal surface durated, ODtUSe. In 



of the second glume; «. anterior view of third glume, show- 1 r,,l, fn 



ing the small palea ; d, dor ai view of fourth glume; e, waste places. JUI\ 10 



anterior view of the same, showing the palea. (Div. of Cp-.^u. 



Agrosr U. s. Dept. of Agrl. ) oepremuer. 



