178 



CONVOLVULUS SEPIUM. 



[June, 



It does not offer any advantage at all for the conchologist : the 

 only specimen to be seen there is the duck barnacle [Penta- 

 lasmis anatifera), and which is common on any shore or river- 

 bank throughout the kingdom. 



Warrington. ' 



CONVOLVULUS SEPIUM. 



{To the Editor of the ' Phytologist:) 



Sir, — In the last number of 

 the ' Phytologist ' a contribu- 

 tor notices a variety of what 

 he calls the Convolvulus se- 

 pium (it is no doubt well- 

 known now that our good old 

 botanist, the late Mr. Brown, 

 thought proper to make it an- 

 other genus, being quite dis- 

 tinct from Convolvulus as de- 

 scribed and instituted by Lin- 

 nseus, the principal characte- 

 ristic being, the bracteas close 

 ■under the flower; it is now there- 

 fore better known by Calyste- 

 gia) having leaves and flowers 

 different, the former being lar- 

 ger, and of different shape, the 

 latter purple, with white veins. 

 I beg to say this appears to 

 be a common variety, I myself 

 have noticed it several times; but a greater authority still — it 

 is mentioned in the ' British Flora.^ Near Frodsham, Cheshire, 

 a peculiar variety is to be found pretty plentifully ; it seems to 

 be a hybrid between the Convolvulus arvensis and Calystegia se- 

 piura : — leaves larger than those of Convolvulus arvensis, sagit- 

 tate, obtuse at the extremity ; corolla large, purple, angles white ; 

 peduncles double-flowered; bracteas large, caudate, situate at 

 the junction of the pedicels. By the latter character it would 

 appear to partake of Convolvulus arvensis, but that the bracteas 



