MANUAL OF THE GRASSES OF THE UNITED STATES 



Figure 1011. — Panicum scoparium. Plant, X 1; two views of spikelet, and floret, X 10. (McGregor 212, S. C.) 



scabrous on the upper surface and 

 toward the apex beneath; panicle 8 

 to 12 cm. long, few-flowered; spike- 

 lets 3 mm. long, elliptic, minutely 

 pubescent, pointed beyond the fruit. 

 Autumnal culms branching from the 

 middle nodes, the branches more or 

 less divaricate, the ultimate panicles 

 wholly or partly included in the 

 sheaths. % — Swampy woods, 

 Connecticut to North Carolina, rare. 

 104. Panicum recognitum Fernald. 

 (Fig. 1013.) Culms 60 to 150 cm. tall, 

 with elongate internodes, glabrous; 

 sheaths much shorter than the inter- 

 nodes, papillose-pilose to glabrate; 

 ligule minute; blades 6 to 13 cm. long, 

 8 to 15 mm. wide, lanceolate, acumi- 

 nate, glabrous, or sometimes pilose 

 on the lower surface, the margins 

 ciliate toward the cordate base, 

 pubescent on the collar; primary 

 panicle 8 to 13 cm. long, the branches 

 broadly ascending, few-flowered; pul- 

 vini pubescent; spikelets 2.2 to 2.8 

 mm. long, elliptic, rather sparsely 

 pubescent; first glume 0.8 to 1 mm. 

 long, ovate, acute, the second glume 

 and sterile lemma subequal, scarcely 



Figure 1012. — Panicum aculeatum. Two views of 

 spikelet, and floret, X 10. (Type.) 



Figure 1013. — Panicum recognitum. Two views of 

 spikelet, and floret, X 10. (Long 7672, N. J.) 



