416 



GENTIANACEJS. 



places in Ireland, and at Teesdale, Durham. G. nivdlis 

 (Small Alpine Gentian) is also very rare, occurring only 

 on the summits of the Highland mountains : the flowers 

 grow several en a stem, and in colour and shape re- 

 semble the last. 



ERYTHEMA CENTAURiUM (Cowmcw Centaury). 



2. ERYTHEMA (Centaury). 



1. E. Oentaurium (Common Centaury). A pretty 

 herbaceous plant, 2 18 inches high, with square erect 

 stems, which are much branched above, and terminate 

 in variously divided flat tufts of small rose-coloured 

 flowers ; the leaves are oblong, with strong parallel ribs, 

 and remarkably smooth ; the flowers only expand in fine 

 weather. This is the common form of the plant as it 

 occurs in dry fields and waste places. In other situa- 



