50TJTH WESTERN PARTS OF EUROPE- 29 



Iris Pseud-Acorus, Sparganium erectum, Typha 



latifolia and angustifolia 

 Plantago coronopifolia. 

 Galium palustre, uliginosum. 

 Sherardia arvensis. 

 Several species of Poramogeton. 

 Urtica urens, but not U. diocia Linn 

 Parietaria officinalis. Echium vulgarc 

 IVlyrica Gale. Betula Alnus* 

 Lithospermum arvense. 

 Myosotis palustris & arvensis. 

 Convolvulus arvensis, sepium. 

 Datura Stramonium, Hyoscyamus niger. 

 Solanum nigrum, Dulcamara. 

 Lonicera periclymenum. 

 ?Iedera Helix. 

 Illecebrum verticillatum. 



Gentiana Centaureum, but with many varieties. 

 Chenopodium viride, album, murale, maritimum. 

 Herniaria glabra, but more frequently H. hirsuta. 

 Eryngium maritimum, Hydrocotyle vulgaris. 

 Heracleum Spondylium. 

 Tordylium Anthriscus. 



