CONVOLVULACEAE 221 



1. C. sepiuili, R. Br. Stem long, trailing or twining, smoothish; 

 leaves sagittate, with the lobes obliquely truncate. 

 Convolvulus sepium. L. $ Fl. Cestr. ed. 2. p. 130. 



HEDGE CALYSTEQIA. Hedge Bind-weed. 



SUm 3 to 5 or 6 feet long, nearly smooth. Leaves 2 to 4 inches long, oblong, or 

 often somewhat triangular; petioles 1 to 3 inches long. Peduncles 4 to 6 or 8 

 inches long ; bracts oblong-cordate, nearly % the length of the corolla, and almost 

 twice as long as the calyx; corolla about 3 inches long, white, tinged with rose- 

 color. 

 llaJb. Meadows, along the Brandy wine : not common. Fl. June. FT. Aug. 



Obs. This is generally regarded as an indigenous plant ; but its 

 localities seem to be quite restricted, and it looks like a stranger, in 

 Chester County. 



2. C. spitliamaea, Fursh. Stem short, erect, or oblique, 

 pubescent ; leaves oblong, auriculate-cordate at base. 

 Convolvulus spithamaeus. L. $ Fl. Cestr. ed. 2. p. 130. 

 SPAN-LONG CALYSTEGIA. 



Perennial f Stem 8 to 12 inches long, erect and simple, or sometimes nearly pro- 

 cumbent, with assurgent branches. Leaves 2 to 3 inches long, often rounded at 

 apex, sometimes acute or acuminate; petioles % to % of &n inch in length. 

 Peduncles 2 to 4 inches long ; bracts cordate-ovate, about % longer than the calyx ; 

 corolla about an inch and half in length, white. 

 Hob. Dry, hilly woodlands : frequent. Fl. June. Fr. Aug. 



Obs. This species (of the perennial character of which, I am not 

 quite satisfied) presents two pretty striking varieties, in habit and 

 features ; but they are probably nothing more than varieties. 



321. COIVVOI/VUL.US, L. 



[Latin, convolvo, to entwine, or wind about ; descriptive of the plant.] 

 Calyx naked (the bracts being remote from the flower, and small). 

 Corolla campanulate, or funnel-form. Stamens mostly included. 

 Stigmas 2, rarely 3, linear, globular, or capitate. Chiefly trailing 

 or twining plants, often with milky juice: leaves more or less cor- 

 date; peduncles axillary, 1- or few-flowered; flowers usually large. 



g 1. CONVOLVULUS PROPER : Stigmas 2, linear. 



1. C. arvSnsis, L. Stem procumbent, or sometimes twining, rather 

 short; leaves ovate-oblong, obtuse, hastate-sagittate at base. 

 FIELD CONVOLVULUS. Field Bind-weed. 



Perennial. Stem about 2 feet long, slender, branching, angular and ptriate, 

 somewhat hairy. Leaves 1 to 1% inches long, the smaller ones rather acute 

 the larger ones obtuse, and often emarginate, all with a minute cusp at the end 

 of the midrib ; petioles half an inch to an inch in length. Peduncles 1 to 2 or 3 

 inches long, with 2 small bracts situated % an inch to an inch below the flower ; 

 cnrnUa about % of an inch long, pale red, or reddish-white, 

 //aft. Cultivated lots. Nat. of Europe. Fl. June. Fr. Aug. 



Obs. This foreigner is gradually extending itself among us, and 

 will probably give our farmers much trouble, if they do not care- 

 fully guard against it. Incessant vigilance is said to be the condition, 

 on which alone the rights of Freemen can be maintained; and I 



