NAT. ORDER 
Convolvulaceae. 
CONVOLVULUS PANDURATUS. BIND-WEED. 
Class V. Pentandria. Order I. Monogynia. 
Gen. Char. Caly.v, perianth, one-leaved, five-angled, tubular, ob- 
long, obtuse. Corolla, one-petalled, five-angled, tubular, con- 
verging. Stamens, filaments five. Capsules, ovate, enclosed in 
the calyx, one, two, or three-valved. Receptacles, convex, 
largely dotted, and joined to the dissepiment. Seeds, two, of a 
roundish form. 
Spe. Char. Stem, twining, herbaceous, angular, naked at the base, 
where the filaments are dilated. Leaves, cordate or panduri- 
form. Stamens, one-half shorter than the corolla. Calyx, 
smooth, slightly mucronate. Outer Sepals, unequal, and mostly 
obtuse. 
Of the numerous species comprehended by the Convolvulus, a 
word derived from convolvere, to roll round, sixteen are indigenous 
to this country. The Convolvulus panduratus, though an inhabitant 
of almost every state, appears only in corn-fields, on the borders of 
woods, sandy tracts, and on the edge of waters, from which may be 
inferred its constant necessity for extreme warmth and light. In the 
southern part of New-York and on Staten Island it is abundant. — 
The root is perennial, and of such dimensions as frequently to exceed 
fifteen pounds in weight ; the stem most commonly trails on the 
ground ; when young it is pubescent, but attains smoothness at the 
period of completed growth : the leaves, two, petiolate and entire, 
Vol. iii— 97 
