196 ALIEN FLORA OF BRITAIN 



cultivated ground, but does not take the prominent 

 position which it does in Southern Europe. 



Panicum glabrmu, Gaud. Common locally in South- 

 East England, and recorded from one or two other 

 stations in other parts of Britain. It has not been 

 observed in quite wild situations anywhere in Europe. 

 M. Moulins {Bull. Soc. Linn. Bord. vol. i. p. 45) may- 

 be right in supposing that it originally came with 

 ships' ballast from America. 



Panicum miliaceiun, L. Commonly cultivated in 

 warm countries and much imported into England,, 

 where it has been frequently observed as a casual in 

 waste ground. 



Panicum sanguinale, L. A casual weed of waste 

 ground in England. Occasionally spreading in arable 

 land. Its origin is uncertain. 



Phalaris caerulescens, Desf. Native in the east of 

 Europe and a weed of cultivation in the Mediter- 

 ranean area. Once recorded in Britain on ballast at 

 Cardiff. 



Phalaris canariensis, L. A weed of cultivated ground 

 in Central and Southern Europe. In England it is 

 one of the species which betrays the localities where 

 birds have been fed, or where the sweepings from 

 their cages have been thrown. It is never more than 

 a casual. 



Phalaris intermedia, Bosc. One of the casuals 

 recorded by Mr. Bucknall from St. PhiUip's Marsh, 



