PANICUM LINDHEIMERI tt, sp.
Whole plant, with the exception of the lower sheaths, usually the lower internodes, and the spikelets, smooth and glabrous. Culms slender, erect, at length branched, the lower internodes sparingly papillose-hirsute, or sometimes glabrous ; nodes often barbed with spreading or somewhat reflexed hairs ; sheaths shorter than the internodes, somewhat loosely embracing the culms, ciliate on the margins, the lower ones sparingly papillose-hirsute ; ligule a fringe of hairs about 2 mm. long ; leaves ascending, 2-7 cm. long, 4-12 mm. wide, thickish, narrowly oblong-lanceolate, acute at the apex, rounded or truncate at the somewhat clasping base, 7-9-nerved, the margins scabrous ; primary panicle orbicular-ovate, 4-5 cm. long, its branches spreading, the longer 2-3 cm. long, single, dividing at or near the base into 3-5 branches which sub. divide into 1-3 branchlets, these usually appressed ultimate divi sions rarely exceeding twice the length of the spikelets, the second.
ary panicles somewhat smaller ; spikelets obovate, 1.5 mm. long, the first scale about one-third as long as the spikelet, white, gla brous, broader than long, rounded or almost truncate at the apex, sometimes slightly apiculate, i-nerved, the second and third scales equal, membranous, yellowish green, broadly oval, 9-nerved; strongly pubescent with spreading hairs, the latter enclosing a hyaline palet one-half its length, the fourth scale chartaceous, broadly oval, yellowish white, enclosing a palet of equal length and similar texture.
The type was collected by F. Lindheimer in 1846, no. 565. The following also are to be referred here : Heller, Kerrville, Kerr Co., Texas, 1894, no. 1752.
Nealley, Base of Mt., McCulloch Co., Texas, June, 1890.
Wright, New Mexico, no. 2085.