Class V. Order I. 79 



eated ; peduncles square, one flowered ; bractes heart 

 shaped, close to the flower. Sm. 

 Syn. CALTSTEGIA SEPIUM. Pursh. 



The American variety of Convolvulus sepium is one of the 

 finest of the genus. It climbs about fences and bushes in low 

 ground, its large red and white blossoms expanding in June and 

 July. Stem twining, a little angular, smooth. Leaves large, 

 arrow shaped, the hinder lobes cut off, particularly in the upper 

 leaves. Flower stalks square, axillary, bearing a pair of heart 

 shaped bractes so close to the flower as to appear like its calyx. 

 Perennial. 



CONVOLVULUS ARVENSIS. Z/. Small Bindweed. 



Leaves arrow shaped, the lobes acute ; flowers 

 generally solitary ; bractes minute, remote from the 

 flower. Sm. 



Not more than half the size of. the last. Stems numerous, 

 twining. Leaves arrow or halbert shaped, with acute lobes. 

 Peduncles angular with a pair of very small acute bractes about 

 their middle. Flowers nearly white. Dorchester. June. 

 CONVOLVULUS STANS. MX. Downy Bindweed. 



Erect, downy ; leaves oblong lanceolate, hearted, 

 acuminate ; peduncles elongated, one flowered ; brac- 

 tes ovate, acute ; segments of the calyx lanceolate ; 

 stem flowering below. 



Syn. CALTSTEGIA TOMENTOSA. Pursh. 



About half a foot high with leafy branches, never twining. 

 From the lower part of the stem proceeds a long peduncle, 

 (sometimes two,) bearing a large white flower. In dry woods. 

 Fryeburg, Maine July. 



83. DATURA. 

 DATURA STRAMONIUM. L. Thorn Jlpple. 



Bigelow, Medical Botany, PI. i. 



Capsules thorny, erect, ovate ; leaves ovate, angu- 

 lar, smooth. 



