NEW OR RARE SCOTTISH PLANTS. 295 



in the same zone bear to those of his own. Those 

 who are well acquainted with the peculiar ha- 

 bitats of plants, will observe some which are 

 confined to a very narrow space, and are some- 

 times even almost solitary. This curious fact has 

 not hitherto been sufficiently explained. This 

 circumstance, however, occasionally occurs in eve- 

 ry region of the globe, in both hemispheres, 

 within the tropics, as well as in the temperate 

 and frigid zones, Chcerophyllum aromaticmn, 

 a native of Austria, Silesia, and other parts of Ger- 

 many, has also been found in Scotland, although 

 only in one spot, and there but sparingly. The late 

 Mr George Don of Forfar first observed this habitat 

 about twenty-five years ago. Lychnis alpina, which 

 is found on the Alps of Lapland, Siberia, Switzer- 

 land, and the Pyrenees, has also been detected in 

 Scotland. Although it has hitherto only been ob- 

 served in one spot, yet I have no doubt that here- 

 after it will be met with in other parts, considering 

 the many relations which these countries have in 

 common. Potentilla opaca, which is found on 

 Mount Baldo, the mountains of Switzerland, Aus- 

 tria, and Germany, is also found in considerable 

 plenty on the Braes of Balquhidder, and other hills 

 in Perthshire. 



Many alpine plants were formerly regarded by 

 botanists, as only varieties of those found in the plains, 

 altered by their elevated situations ; but, by gradu- 

 ally becoming more minutely acquainted with their 



