MANUAL OF THE GRASSES OF THE UNITED STATES 



423 



Figure 602. — Sporobolus silveanus. Panicle, X 1 ; glumes and floret, X 10. (Type.) 



glumes acute, subequal, about as 

 long as the lemma and palea. % 

 — Low pine barrens, North Carolina 

 to Florida. 



17. Sporobolus junceus (Michx.) 

 Kunth. (Fig. 606.) Perennial, in 

 dense bunches; culms erect, slender, 

 about 3-noded, 30 to 60 cm. tall; 

 blades folded or involute, slender, 

 glabrous; panicle mostly bronze 

 brown, oblong or narrowly pyramidal, 

 open, 7 to 15 cm. long, 2 to 5 cm. 

 wide, the flexuous branches (2 to 3 

 cm. long) in rather regular whorls 

 1 to 3 cm. apart, widely spreading 

 to ascending, naked at base, the 

 short-pediceled spikelets appressed 

 along the upper part; spikelets about 

 3 mm. long; first glume about half 

 as long, the second glume as long as 

 the acute lemma or a little longer. 

 % (S. gracilis (Trin.) Merr.)— Pine 

 barrens of the Coastal Plain, south- 

 eastern Virginia to Florida and Texas. 

 Common in the high pineland of 

 Florida. 



Figure 603.— Sporobolus curtissii. Panicle, X 1; 18. SpOTODOlliS piirpiiraSCeilS 



glumes and floret, X 10. (Bitting 1050, Fla.) ( Swa rtz) Hamilt. (Fig. 607.) Re- 



