DISTRIBUTION OF BRITISH PLANTS. 345 



Shepherd's Staff (Dipsacus pilosus] . A species of Eleabane 

 (Inula Conyzd] . One of the Knapweeds (Centaurea Calci- 

 trapa) called the common Star Thistle, which, with the 

 contempt of rules before alluded to, is to be found in vari- 

 ous parts of England. Round-headed Eampion (PJiyteuma 

 orbiculare). The handsome but rare Marsh Gentian (Gen- 

 tiana Pneumonanthe) , with large deep-blue blossoms, which, 

 though included in this list, is also to be met with in Nor- 

 folk and in the north of England. Three of the Mulleins, 

 Verlascum Lycknitis, or white Mullein, which, though 

 more rare, is much less showy than some of the family, from 

 the small size of its blossoms ; the common Verbascum 

 Thapsus, or Great Mullein ; and V. Blattaria, Moth Mullein. 

 Meadow Sage (Salvia pratensis] . Yellow Bugle (AjugaCha- 

 mapitys}. The common Box-tree (Buxus sempervirens) . 

 Black Bryony (Tamus communis), which is by no means pe- 

 culiar to this part of England. Many species of Orchis, 

 and the beautiful climber, with a name as beautiful Tra- 

 veller's Joy (Clematis Yitalba), which is mentioned as be- 

 longing both to this group and to the last. 



It is remarkable that this group of flowers, like the last, 

 is found in company with several different species of snails, 

 and other mollusca, which characterize this district ; and 



