44. COMPOSIT/E. — 45. CAMPANULACE.E. 135 



the plant accompanied by Vaccinium Vitis-Idsea, &c., and 

 growing among a profusion of Lastrea Oreopteris." With 

 a specimen from the Yorkshire habitat, communicated by 

 Mr. Hardy to the Botanical Society of London, the fol- 

 lowing slight variation occurs in the description of the lo- 

 cality : " side of a high heathy hill, in a soil of sand and 

 coal shale, overlying the gannister coal, of the new red 

 sandstone, July, 1845." It should be sought elsewhere in 

 the same and adjacent counties. 



Xanthium strum arium, Linn. 



Area (* 23*******11). 



Alien. Has been occasionally found in England. The 

 counties of Dorset, Hants, Kent, Surrey, Middlesex, Dur- 

 ham and Northumberland have been recorded for it. When 

 cultivated in my garden, in Surrey, I find it very impatient 

 of frost, and so tardy in flowering in the autumn that the 

 fruit fails to ripen. My seeds of it had been obtained 

 from the Azores, and might possibly belong to a more ten- 

 der variety, for the fruit of the Azoric specimens is rather 

 shorter and broader than was the case on the solitary spe- 

 cimen which I found, apparently wild, near Peckham, in 

 Surrey, in 1831. 



675. Campanula rotundifolia, Linn. 



Area general. 



South limit in Cornwall, Isle of Wight, Kent. 

 North limit in Shetland, Caithness, Hebrides. 

 Estimate of provinces 18. Estimate of counties 81. 

 Latitude 50 — 61. British type of distribution. 



