Thk (Brasses of Tennessee. r>7 



the panicle points downward. It is largely cultivated in tro])i. 

 cal and Northern Africa, and in some parts of Southern Asia, 

 where it is used as a cereal. It is only occasionally grown here, 

 and is highly valued as a food for poultry. 



Sorghum Halapense, Pers. — Same as Andropogon sorghum, Brot. var. 

 Halapt-nsis, Hack., which see. 



Sorghum nutans, Gray. — (Same as Andropogon nutans, Linn.) 



There are two well-marked varieties of this grass found 

 within the vState. The more common one is the Sorghum 

 avenaceum of Chapman {^Andropogon nutans L. var. avenaceus, Hackel.) 

 The other, less frequently seen, is Sorghum nutans of Chapman, 

 (Andropogon nutans L. var. Linnceanus, Hackel.) This last is 

 distinguished by its longer beards (awns), much more loosely 

 flowered, darker-colored, and nodding panicles. 



Sorghum saccharatum, Pers. — Sweet Sorghum, Chinese vSugar- 

 Cane, African Cane, Broom Corn. 

 This is regarded by Hackel as only a variety of Andropogon 

 Sorghum. The variety which is cultivated here as Broom Corn 

 he names var. technicus. 



Sorghum vulgare, Pers. — This has been reduced by Hackel to a 

 variety of Andropogon Sorghum, characterized by its light colored 

 and rather compact panicles. There appears to be much con- 

 fusion in our literature as regards the "common" names applied 

 to the varieties of Sorghum. Under Sorghum vulgare we find the 

 following: Sorghum, Sugar-Cane, Broom Corn, Indian Millet, 

 Chinese Wheat, Ivory Wheat, Pampas Rice, Chinese Sugar-Cane, 

 African Corn, Guinea Corn, Duora or Durra Corn, Chocolate 

 Corn, Great Millet, Oregon Rice. 



Southern Bent-grass. — Agrostis elata. 



Southern Canary-grass. — Phalaris intermedia. 



Southern Eragrostis. — Eragrostis Purshii. 



Southern Poverty-grass. — Sporobolus vagincEflorus. 



Southern Spear-grass. — Eragrostis Purshii, Poajiexuosa. 



Spanish grass. — Panicnm molle. 



Spartina cynosuroides, /r///^.— Cord -grass, Fresh-water Cord- 

 grass, Marsh grass. Bull-grass, Thatch-grass, Slough-grass. 

 This grass occurs in West Tennessee ( Gattinger.) It is a native 

 perennial, three to six feet high, growing in rich soil along river 

 banks and borders of lakes. It is said to make excellent hay for 

 horses when cut in good season. In regions where it grows 

 abundantly, as along the Mississippi bottoms, it has been used 

 for making a coarse kind of paper. We do not regard it as 

 worth cultivating. 



