86 ENGLISH BOTANY. 



near which it grows. This quality does not recommend it to the agriculturist, as it 

 is apt to choke those plants selected for its embraces. Its roots creep along very 

 quickly and firmly in the ground, and it is regarded as a most troublesome weed by the 

 fanner ; its beauty in no way saving it from the ruthless hoe. 



Section II.— CALYSTEGIA. B. Br. 



Bracteoles very large, embracing the base of the calyx and 

 nearly concealing it. Capsule imperfectly 2-celled, the dis- 

 sepiment not reaching the apex. 



SPECIES II.— C ONVOLVULUS SEPIUM. Linn 



Plate DCCCCXXIV. 



Reich. Ic. Fl. Germ, et Ilelv. Vol. XVIII. Tab. MCCCXL. 

 Billot, Fl. Gall, et Germ. Exsicc. No. 2886. 



Calystegia Sepium, R. Br. Choisy in D. C. Prod. Vol. IX. p. 433. UooL &, Am. 

 Brit. Fl. p. 28G. 



Pootstock extensively creeping. Stem twining, twisted upon 

 itself. Leaves thin, stalked, triangular-ovate, cordate-sagittate or 

 cordate-hastate at the base, acute, entire. Peduncles axillary, 

 1-flowered. Bracteoles 2, close to the base of the calyx, very large, 

 triangular-ovate, mucronate, as long as or longer than the calyx, 

 sub-cordate at the base. Sepals nearly equal, lanceolate, ovate- 

 acute, free nearly to the base. Corolla 5 or 6 times as long as 

 the calyx. 



In fields, cultivated ground, hedge-banks, and waste places. 

 Very common in England, local in Scotland ; occurring as far 

 North as Fife and the neighbourhood of Glasgow. Probably 

 introduced in the counties of Forfar, Moray, and perhaps also in 

 that of Argyle. 



England, Scotland, Ireland. Perennial. Summer 

 and Autumn. 



Itootstock about the thickness of a quill, white, fleshy, brittle, 

 creeping horizontally, and throwing out stems at intervals. Stem 

 varying much in length, often 5 feet high or more, and almost always 

 climbing, simple or slightly branched. Leaves 2 to 5 inches long, 

 with the lobes at the base truncate, but more approximate than 

 those of C. arvensis. Peduncles longer than the leaf-stalks, but 

 generally not exceeding the leaves, and with a pair of large green 

 bracteoles tinged with pink at the apex. Flowers 2 inches across, 

 pure-white, rarely rose-colour, longer in proportion to their breadth 

 than in C. arvensis. Capsule sub-globular, acuminated, about i inch 



