1^18] 



The Grasses of Illinois 



323 



Echinochloa frumentacea (Roxb.) Link 



Japanese Barnyard IMillct. Billion Dollar Grass (Figs. 95 and 96) 

 This species was introduced into the United States some years ago, 

 in the hope that it would prove to be a valuable forage plant. As 

 its value was not so great as was expected, little of it is now cultivated. 

 It has frequently been found as an escape from cultivation. It closely 

 resembles the short-awned forms of E. crns-galU, but has a narrower, 

 more compact panicle. 



VERMILION CO. Bank of Butler Branch creek, Catlin, Lansing, Sept., 1912. 



Echinochloa waiter! (Pursh) Nash 

 Salt-marsh Cockspur Grass (Fig. 97) 



Fanicum hispidum, Lapham '57, 548. Panicum cnts-galli var. hispidum, Pat- 

 terson '7G, 52; Flagg '78, 284; Higley and Kaeklin "91, 139; Huett, '97, 128. 



Culms branching from the base and often spreading, 1 to 6 feet 

 long ; sheaths, at least the lower, densely papillose-hirsute ; blades 

 usually roughened but not pubescent, a foot or more long, 12 to 25 

 mm. wide ; panicle nodding, the branches usually ascending ; spikelets 

 about 3 mm. long, the first glume with a short awn, the second glume 

 and sterile lemma with awns 2 inches or more long. 



This is the only native species of the genus found in Illinois. It 

 likes wet places, such as marshes, and is usually found near salt water. 



COOK CO. Shores of Calumet lake, Chicago, A. Chase 1426; shores of 

 Calumet lake, Chicago, Sherff, Sept., 1912; Pullman, Hill, Aug., 1900. fulton co. 

 Canton, Wolf, lake co. Antioch, Gleason and SJwbe 259; Fox lake, Aug., 1908. 

 PEORIA CO. FeoTia, Brendel. ST. glair co. Without locality, -E'r/s'eri, Sept., 1879 ; 

 Mascoutah, Welsch; East St. Louis, Eggert, June, 1878. tazewell co. East 

 Peoria, McDonald, Aug., 1889. 



96 



97 



Figs. 95-99. — 95, E. frumentacea, inflorescence; 96, E. frumentacea, spike- 

 let; 97, E. tvalteri, spikelet; 98, E. crusgalU, inflorescence; 99, E. crus-galli, 

 spikelet 



