Protologue Description: Panicum albo-marginatum. n. sp.

Whole plant, with the exception of the spikelets and the lowermost sheaths, smooth and glabrous. Culms erect, slender, I.5-4.5 dm. tall, somewhat branched toward the base; sheaths short, often sparingly ciliate on the margins, those on the culm one-third the length of the internodes or less, I.5-2.5 cm. long, those on the branches shorter and overlapping, I cm. long or less; ligule a ring of short hairs about .25 mm. long; leaves thick, erect, lanceolate, I.5-4.5 cm. long, 2-8 mm. wide, acuminate, somewhat narrowed and rounded at the base, with a prominent thick, white, cartilaginous, serrulate margin about .25 mm. wide ; panicle ovate in outline, the primary ones long-exserted, 2.5-4 cm. long, the branches .ascending; the panicles on the branches smaller, shorter than the uppermost leaf; spikelets 1.5 mm. long, broadly obovate, obtuse, diverging from the branches; first scale orbicular, glabrous, onefourth to one-third as long as the spikelet ; second and third scales membranous, 7-nerved, strongly pubescent with short spreading hairs, the latter enclosing a hyaline palet about one-half its length ; fourth scale chartaceous, oval, obtuse, 1.25 cm. long, about .8 mm. wide, enclosing a palet of equal length and similar texture.
Collected by the writer in the low pine land at Eustis, Lake County, Florida, early in June, 1894, no. 925.