June, 1914.] 
The Panicums of Ohio. 
353 
to | inch wide, slightly involute toward the end, pilose on both 
surfaces, hairs appressed on the upper surface; primary panicle 
long-exserted or equaled by the uppermost leaf, loosely flowered; 
spikelets a little more than ^ inch long, obovate to eliptic, 
densely pubescent with short spreading hairs; outer empty glume 
a little less than El as long as the second empty glume; second 
empty glume a little shorter than the fruit. Sandy or dry soil. 
Cuyahoga, Erie, Licking. 
22. Panicum implicatum Scrib. Slender stemmed Panic- 
grass. A slender, more or less pubescent tufted and erect peren¬ 
nial. Sheaths shorter than the internodes, papillose-pilose; ligule 
at the top of the leaf sheath inch or less; leaves 1 to 3 inches 
long, | to \ inch wide, erect, lanceolate, firm, upper surface 
pilose, hairs erect, hairs on the lower surface appressed; panicle 
open, wide-spreading, flexuous, 1X to 2 inches long, branches 
sometimes tangled; spikelets about A inch long, obovoid, 
obtuse, papillose-pilose; outer empty glume almost l / 2 as long as 
the spikelet, pubescent; second empty glume equaling the fruit. 
Wet soil. Gallia county. 
23. Panicum tsugetorum Nash. Hemlock Panic-grass. A 
bluish-green or purplish, slender perennial, 10 to 20 inches ascend¬ 
ing or spreading, often geniculate below. .Sheaths appressed 
pubescent, shorter than the intemodes; leaves 2 to 2 ]/ 2 inches long, 
j to ] inch wide, minutely appressed-pubescent beneath, 
glabrous above or with a few hairs near the base or margin; panicle 
loosely flowered, branches ascending or spreading; spikelets about 
i 3 * inch long, broadly ovate, pubescent; outer empty glume f 
as long as the spikelet; second empty glume equalling the fruit. 
Sandy woods. Defiance, Summit. 
24. Panicum leibergii (Vasey) Scrib. Lciberg’s Panic-grass. 
A perennial 1 to 2pi feet tall, scabrous at least below the nodes. 
Sheaths sometimes longer than the internodes, papillose-hispid, 
hairs spreading; ligule minute; leaves ascending, lanceolate, ciliate 
near the base, papilose-hispid on both sides or almost glabrous 
above, 3 to (i inches long; panicle 3 to (i inches long, less than 
as wide, branches ascending; spikelets | inch long, papillose- 
hirsute with spreading hairs; outer empty glume p 2 as long as 
the spikelet, 1 to 3 nerved; second empty glume oval, 7 to 9 nerved. 
Dry soil. No specimens. 
25. Panicum scribnerianum Nash. Scribner’s Panic-grass. 
An erect perennial (i to 14 inches high, in clumps. Sheaths 
papillose-hispid or nearly glabrous; ligule V 32 inch long; leaves 
2 to 4 inches long, | to ^ inch wide, sometimes ciliate toward 
the base; panicle short-exserted, \y 2 to 3J4 inches long; spikelets 
inch long, turgid, obtuse, slightly pubescent, outer empty 
glume minute, second empty glume shorter than the fruit. Sandy 
or dry soil. Cuyahoga, Erie, Wood, Franklin. 
