COMMON JOINTED RUSH 



49 



Common Jointed Rush 



(Juncus articuiatus, L. = J. lamprocarpus, Ehrh.) 



This common marsh plant is known to us from its present distribu- 

 tion alone, which covers the North Temperate Zone in Europe, 

 N. Africa, N. and \V. Asia, Himalayas, N. America. In Great Britain 

 it is found everywhere, except in Berwick, as far north as the Shet- 



The Habitat of the Common Jointed Rish (Juiichs articuiatus, 

 L. = J. lamprocarpus, Eliili.) 



lands, and up to 2400 ft. in the Highlands, being a native of Ireland 

 and the Channel Islands. 



The Common Jointed Rush is a semi-aquatic plant which grows 

 near water, either in wet places, such as ditches, or by the side of 

 brooks and rivers. It is also to be found on the margins of lakes and 

 pools. But a more constant and certain habitat perhaps is marsh land 

 where there is a continuous humid atmosphere. A favourite spot is 

 a mountain bog, where it grows profusely in the streaming moisture of 

 the mountain-side. 



This is a tall, erect, slender, and graceful plant, the stem flattened 

 lengthwise. The leaves are jointed, hollow, with septate divisions 

 internally, the pith not being continutnis. 



Vol.. V. 



66 



