COMPOSITE 121 



Tetasites fragrans, Presl. A native of the Medi- 

 terranean region, now naturalised in most of the 

 countries of Europe. Though of much more recent 

 introduction as a garden plant in England than Petasites 

 albus, it is far more common as a naturalised escape 

 irom cultivation than that species. 



[Picris hieracioides, L. Undoubtedly a native of 

 Britain. It is generally recorded in Floras as a plant 

 •of roadsides, waste ground, and other artificial habitats. 

 It may be found, however, in perfectly natural situations 

 in woods and dry pastures, especially in limestone 

 districts.] 



Picris pilosa, Delile. A weed of cultivated ground in 

 the Eastern Mediterranean region. Once recorded with 

 other aliens in connection with the siftings of Eastern 

 barley. 



Ticris spinulosa, Bertol. Native of dry pastures in the 

 south of Europe, and also a weed there of cultivated 

 ground. It has been recorded as a grain-introduced 

 -casual in England. 



Prenanthes purpurea, L. Native of woods and bushy 

 places of Central and Southern Europe. Occasionally 

 found as an escape from English gardens. 



Rhagadiolus edulis, Gaertn. Native of the Medi- 

 terranean region. One of the casual introductions found 

 near the West Dock at Hull. 



Rodigia commutata, Spreng. Native of dry grassy 

 hills in the east of Europe. One of the grain-sifting 

 aliens introduced with barley from the East. 



