— 
é‘ 
‘DIDYNAMIA. ANGIOSPERMIA. | 57 
te 
with the margin inflected; lower concave, ob- 
soletely 3-toothed, unexpanded. Anthers un- 
connected; lobes unequal, psricate,, Ca ed 
straight, elliptic-ovate, 2-celled, 2-valved, 
ny-seeded, opening on both sides; dissepiment 
transverse. Seeds small, with an alated lunate 
margin. ™ 
_ Annual; stem simple; leaves alternate, entire; flawers 
axillary, alternate, sessile, and bracteate; bractes divari- 
eately trifid, 
Srecies. 1. 0. luteus. 
DescaiPr. Root tortuous, perpendicular, and fibrous. 
Stem simple, hirsutely pilose, terete. Leaves increasing 
in size upwards, alternate, sessile, lanceolate-linear, 
acute, entire, opaque, and as well as the bractes and ca- 
lix shortly and somewhat viscidly pubescent, margins sca- 
brous; bractes cuneate, divaricately trifid, about an inch 
long and the same in width, 3-nerved. Calix much 
ter than the bractes, partly compressed, kets “= sub- 
campanilate, segments linear-lanceolate, acute 
yellow, smooth; tube sland én, Shoes. the length of the 
calix; both-of the lips conca , and closed, the 
lower somewhat Diaited-and ond ter terminated by. 3 minute den- 
tures, so inconspicuous as to give the corolla the appear- 
ance of being destitute of an under lip. Stamina 4, small; 
filaments capillary, ingrafted upon the upper lip a little 
below the orifice, approximating by pairs under the same 
lip; anthers pale, unusually small, 2-celled, distinctly and 
separately 2-lubed, lobes pubescent, not parallel, one 
acute-angularly diverging from below the summit of the 
es spade! exactly Se aie the small lamdba of sa a 
Tee! habet (A) le fili ‘orm, stigma, imple, minute. — 
~ Capsule elliptic eae ces, ge and | é 
cluded oo gh = ealix, 9-celled, Q-valv s 
margins of the valves partly inflected; issepiment trans- 
verse, or origining from the middle of the valves and 
- seminiferous. Seeds small; more than 10, having an 
alated interrupted margin. Cotyledones 2, very small, 
upon the growing plant, oval. Has. In humid situations 
on the plains of the Missouri, near ‘Fort Mandan; very 
Flowering in July and August. ight about 
or 14 inches. ae in quantities. “Flowers of sorghe 
pp rimamigeing tage Hamp at fst nd form of 
at. 
= 
