1 64 ALIEN FLORA OF BRITAIN 



many weeds of waste ground has perhaps caused 

 it to be overlooked as indigenous in some coun- 

 tries.] 



[Chenopodium rubrum, L. Rather a common casual 

 in waste places in England. It occurs more rarely 

 as a native on muddy shores.] 



Chenopodium urbicum, L. A rare weed of culti- 

 vated and waste ground in England and the greater 

 part of Europe. Nowhere recorded from native 

 habitats. 



[Chenopodium Vulvaria, L. It extends from the 

 extreme north of Europe to Northern Africa and Syria, 

 and is throughout this area recorded only from roadsides 

 and waste places, except on the shores of Southern 

 England and Guernsey, where it seems to be indigenous 

 on pebbly beaches.] 



Corispermum hyssopifolium, L. A casual near the 

 West Docks at Hull. Native in Southern Europe, 

 Asia, and America. 



Roubieva multifida, Moq. A South American plant 

 naturalised here and there in Southern Europe, and 

 once recorded in England as a casual at Gloucester. 



Spinacia oleracea, L. Much cultivated in Eng- 

 land, and occasionally noticed as an escape, or relic 

 of cultivation. 



Suseda altissima, Pall. A casual near the West Docks, 

 Hull. Native of Southern Europe. 



