54. OROBANCHACEiE. 231 



Agrarian region. Inferagrarian zone. 



Descends to the coast level, or nearly so. 



Ascends to 50 yards, more or less, in England. 



Range of mean annual temperature 51 — 49. 



Native. Pascual. Parasitical on Achillea Millefolium. 

 Dillnryn quotes the Swansea Guide, as the authority for 

 this very scarce species being found on hilly pastures in 

 Glamorganshire, which may be an error of name. Norfolk 

 and Hants rest upon old authority, which it would now be 

 desirable to verify and confirm afresh. Mr. Hurst men- 

 tions the occurrence of this species in " a clover-field near 

 Cookham, through which the foot-path leads to Great 

 Marlow, abundantly ;" but possibly the purplish variety of 

 O. minor may have been mistaken for the present species. 

 I have specimens from the Isle of Wight (Dr. Bromfield) 

 and Hertfordshire (Rev. W. H. Coleman). 



795*. Orobanche arenaria, Bork. 



Sarnian. " Parasitical upon Achillea Millefolium .? in the 

 Channel Islands." (Bab. Man. edit. 2.) 



796. Orobanche ramosa, Linn. 



Area (1 2 3 4). 



Alien ? If parasitical on Hemp alone, this species can- 

 not be fairly deemed indigenous in England. Moreover, 

 with the discontinuance of Hemp cultivation it has disap- 

 peared from most of its localities, formerly placed on record 

 by authorities now becoming old and uncertain. It is said 

 to have grown in Devon, Somerset, Hants, Kent, Suffolk, 

 Norfolk, and Cambridge ; but whether still to be found in 



