NAT. ORDER 



Convoli-ulaceoe. 



CONVOLVULUS PANDURATUS. BIND-WEED. 



Class V. Pentandria. Order I. JMonogynia. 



Gen. Char. Calyx, 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. 



Spc. Char. Stent, 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 arc 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 \ew-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 smoot!me.ss at the 

 period of completed growtli : the leaves, two, petiolate and entire. 



Vol. iii.— 97 



