86 ALIEN FLORA OF BRITAIN 



[Caucalis Anthriscus, Huds. An undoubted native 

 of wood-borders and bushy hillsides, but, from its 

 remarkable suitability for artificial dissemination along 

 roads and paths, perhaps more common in connection 

 with human operations than in its natural habitats.] 



Caucalis arvensis, Huds. A native of bushy hillsides 

 in South-East Europe, and a weed of cultivated fields 

 in the remainder of the Continent and in England. 



Caucalis daucoides, L. Native of the dry hills of 

 Persia, and perhaps other neighbouring countries. Now 

 abundant in many parts of Central and Southern Europe 

 as a cornfield weed. In England it occurs rarely as 

 a weed of cultivated ground, and it is not uncommon 

 in colonies of grain-sifting aliens. 



Caucalis latifolia, L. Widely distributed in the corn- 

 fields of the Mediterranean region. A rare cornfield 

 weed in a few of the southern counties of England and 

 Wales. Occasionally found in connection with imported 

 grain. 



Caucalis leptophylla, L. Native in dry places from 

 the Mediterranean eastwards to Persia and Afghanistan. 

 A cornfield weed in South-East Europe, and occasionally 

 noticed in England as introduced with imported grain. 



[Caucalis nodosa, L. Native in Britain in dry broken 

 ground on hillsides, but far more common along road- 

 sides and similar places, to which it is introduced by 

 means of its clinging fruits through the agency of men 

 and domesticated animals. It is in the latter situations 

 that it is almost invariably recorded in local Floras.] 



