DESCRIPTION OF MEDICINAL PLANTS. 
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converging linear-awl-shaped scales. Stamens included ; an- 
thers elongated. Style thread-form. Nutlets smooth, ovate, 
erect, fixed by the large hollowed base, which is finely- 
toothed on its margin. Found in the old settlements in East 
Tennessee, where it was formerly cultivated in gardens, and 
escaped into old fields and moist places. FI. June. The root 
is collected in fall. 
CONVOLVULACEAE. Convolvulus Family.) 
Ipomcea pandurata, Meyer. Wild Potato-vine. Man-root. 
A widely trailing and twining perennial. The long and stout 
stems form a huge root, which sometimes weighs 10-20 
pounds. Leaves cordate, acuminate, glabrous, sometimes 
contracted so on the sides as to be fiddle-shaped; peduncles 
longer than the petioles, 1-5 flowered. Calyx not bracteate 
at base, but the outer sepals commonly larger; corolla open 
funnel-form 3' long, contorted in the bud, white with purple 
in the tube; stamens not exserted ; stigma 2-lobed or entire. 
Capsule globular, cells 2, each 2-seeded. Common along 
river banks, railroad embankments and on dry, open ground. 
FI. June-August. The root is collected. 
SOLANACEAE. Nightshade Family.) 
Solanum Dulcamara, L. Bittersweet. Woody Nightshade. 
A climbing perennial, or scrambling over hedges, more or 
less pubescent ; leaves ovate-heart-shaped, the upper halbert- 
shaped, or with two ear-like lobes or leaflets at base. Calyx 
and wheel-shaped corolla 5-parted, the latter plaited iu the 
bud, and valvate or induplicate. Stamens exerted ; fila- 
ments very short ; anthers converging round the style, open- 
ing at the tip by two pores or chinks. Flower purple, in 
small cymes, berries oval, red. FI. Ji.ne-September. The 
leaves, in flowering season. 
Solanum nigrum, L. Common Nightshade. An ubiquitous weed. 
Low, much branched and often spreading, nearly glabrous, 
rough on the angles; leaves ovate, wavy-toothed; flowers 
white, in small umbel-like lateral clusters, drooping; calyx 
