. No. 34. 
TRIODIA ERAGROSTOIDES Vasey & Scrib. 
Plant annual or short-lived perennial, with slightly thickened base. 
Culms erect, branching, solid, terete, smooth, 2 to 3 feet tall. 
Leaves; radical, few: of culm 5 to 9, sheaths usually exceeding the internodes, 
rather loose and open above, striate and slightly scabrous, blades flat or involute 
toward the long tapering point, scabrous on both sides. 2 to 3 lines wide, 6 to 10 
inches long; ligule membranaceous, truncate, lacerate, tawny, 1 line long. 
Inflorescence a loose, spreading, lance-ovate, or pyramidal, erect or drooping 
panicle 8 to 12 inches long; rachis angular, hispid near top, branches mostly 
alternate, slender, scabrous only toward the extremities, sometimes reflexed at 
maturity, 3 to 6 inches long, bearing the nearly solitary spikelets on slender, scab- 
rous pedicels 1 to 3 lines long. 
Spikelets oblong-ovate, compressed, 7- to 9-flowered, 2 to 3 lines long; first 
glume linear-lanceolate, acute or acuminate, 1-nerved, 1 line long; second glume 
ovate-lanceolate, acuminate and longer; internodes of slender glabrous rachilla 
articulating above, } line long; floral glumes oblong, truncate or slightly 2-lobed, 
mucronate, rounded on back, membranaceous, often purplish, pubescent near the 
base on the 3 nerves, lateral nerves near the margins, 1 line long; palet lance- 
oblong, truncate, minutely ciliate, membranazeous, smooth, 2-keeled, scarcely 1 
line long. 
Grain oblong, angular, 2-horned at apex, opaque, brown, falling with spike- 
let, usually disarticulate above empty glumes. 
PLATE XXXIV; 8, spikelet enlarged. 
Florida, Texas to Mexico. A large leafy grass which promises to be servicea- 
ble in agriculture. 
